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Features :
100% Brand New
Voltage: DC 6-36V
Output current: 300mA
3 Wire
Polarity: NPN
Dimention: M12x10x55mm
Detection Distance: 4 mm
Ouput Status: Normally Open
Part number: LJ12A3-4-Z/BX
Detection objects: Conductor

The Specs:
1. Support for the Arduino IDE 1.0 (OSX/Windows/Linux).
2. Power via USB or External Source or 7-16 v to 5 v (automatic selection).
3. The On - board, 150 ma 5 v Regulator.
4. Built - in USB and serial was debugging).
5. 6 I/O Pins (2 are informs the for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB).
6. 8 k Flash Memory (about 6 k after bootloader).
7. The I2C and SPI (vis USI).
8. PWM on 3 pins (more possible with Software PWM).
9. The ADC on 4 pins.
10. The Power LED and the Test/Status leds.
The Specs:
1. Support for the Arduino IDE 1.0 (OSX/Win/Linux).
2. Power via USB or External Source - 5v or 7-16v (automatic selection).
3. On-board 150ma 5V Regulator.
4. Built-in USB (and serial debugging).
5. 6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB).
6. 8k Flash Memory (about 6k after bootloader).
7. I2C and SPI (vis USI).
8. PWM on 3 pins (more possible with Software PWM).
9. ADC on 4 pins.
10. Power LED and Test/Status LED .

 
 
This module is only USB-to-serial module is only responsible for converting the USB interface to fit ESP8266 module serial. Knowledge of all aspects of WiFi module relevant information please consult ESP8266 use! !
use:
 
The main purpose is to facilitate this transition board ESP8266 connected PC via the serial port.
 
Material characteristics:
 
1. Using CH340 serial chip, stable performance, good compatibility, Windows system substantially all of the support.
 
2. The adapter plate integrated 1000uF solid capacitors to ensure the current supply, the power supply will not be a problem to make WIFI module crashes unresponsive.
 
3. Using 3225 SMD crystal, to enhance the stability of serial work, and the tall and beautiful.
 

 
 
This module is only USB-to-serial module is only responsible for converting the USB interface to fit ESP8266 module serial. Knowledge of all aspects of WiFi module relevant information please consult ESP8266 use! !
use:
 
The main purpose is to facilitate this transition board ESP8266 connected PC via the serial port.
 
Material characteristics:
 
1. Using CH340 serial chip, stable performance, good compatibility, Windows system substantially all of the support.
 
2. The adapter plate integrated 1000uF solid capacitors to ensure the current supply, the power supply will not be a problem to make WIFI module crashes unresponsive.
 
3. Using 3225 SMD crystal, to enhance the stability of serial work, and the tall and beautiful.
 

 
 
This module is only USB-to-serial module is only responsible for converting the USB interface to fit ESP8266 module serial. Knowledge of all aspects of WiFi module relevant information please consult ESP8266 use! !
use:
 
The main purpose is to facilitate this transition board ESP8266 connected PC via the serial port.
 
Material characteristics:
 
1. Using CH340 serial chip, stable performance, good compatibility, Windows system substantially all of the support.
 
2. The adapter plate integrated 1000uF solid capacitors to ensure the current supply, the power supply will not be a problem to make WIFI module crashes unresponsive.
 
3. Using 3225 SMD crystal, to enhance the stability of serial work, and the tall and beautiful.
 

 
 
This module is only USB-to-serial module is only responsible for converting the USB interface to fit ESP8266 module serial. Knowledge of all aspects of WiFi module relevant information please consult ESP8266 use! !
use:
 
The main purpose is to facilitate this transition board ESP8266 connected PC via the serial port.
 
Material characteristics:
 
1. Using CH340 serial chip, stable performance, good compatibility, Windows system substantially all of the support.
 
2. The adapter plate integrated 1000uF solid capacitors to ensure the current supply, the power supply will not be a problem to make WIFI module crashes unresponsive.
 
3. Using 3225 SMD crystal, to enhance the stability of serial work, and the tall and beautiful.
 

Product Introduction:
 
1.Board Size;90*60mm
2.Board Thickness:1.6mm
3.Flow Water Lamp Circuit : CD4017,NE888,LED;after correct connnection,it will operate 
4.Operating Voltage :3-12V
5.board material: international standard sheet, all tin pad, high strength fire drop material, can be repeated disassembly.
6. PCB board design is reasonable, are commonly used in the SMD components.
7. the left and right of the three components are used to practice welding, each column with a test point.
8. the middle of the circular circuit for the water lamp circuit, by the CD4017, NE555, light-emitting diodes, welding power can work.
9. the circuit is also used on the back, a ruler to facilitate the measurement of components. There are examples of PCB conductors to facilitate the use of PCB design.
 
Number of components: 125
Number of solder joints: 274
Use solder length: 35CM (diameter: 0.6mm)
Sample soldering time: 35 minutes
 
 
Note:
Please allow 0.5-1cm errors due to manual measurement
Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same

 
Product performance:
   Standard interface , compatible with a variety ofFor Official Controller
   OriginalFT232Chip, stable performance
   With power , sending, receiving indicator , working status
   Have3.3VAnd5VPower supply options
   Do ordinaryUSBSerialTTLModules, downloadSTCSCM
   Introduction FT232R
   With the development of computer technology , parallel and serial ports on the PC slowly disappeared , and now even the parallel port of the desktop are rare . But for engineers, parallel and serial interfaces are essential , especially in the serial . For computers without serial ports , the most convenient solution is to use USB to serial chip to virtual serial port out , many manufacturers have produced such a chip , such as silicon LABS of CP210x series , TI 's TUSB3410, Nanjing Qin Heng CH34x series, FTDI's FT232 series , Prolific 's PL230x series, Echo 's ARK3116 so on. From the stability point of view, the most reliable or FT232 series , you can use it to ease the debugging process without fear of a blue screen appears.
   FT232R chip is a single-chip solution , generally do not need to use basic peripherals , and even crystal , USB matching resistor , place the product information have been integrated in the internal EEPROM of the . FT232R There are some more useful features, details can be found FT232R data sheet .
   Datasheet Download : www.ftdichip.com/Products/ICs/FT232R.htm
   Introduction:hardware
   · using FTDI FT232RL chip companies ;
   · FT232RL chip lead all the signal port , TTL / CMOS level ;
   · RXD / TXD Transceiver Communications LED ;
   · USB -powered, 5V or 3.3V selectable interface level

 
15A 400W MOS FET Trigger Switch Drive Module
High power MOS field effect tube trigger switch driver module PWM regulating electronic switch panel
Modules window:
1. Adopt imported from two parallel MOS active output, lower resistance, electric current is bigger, strong power, room temperature 15 a, 400 w, met the most equipment used;
2. Wide voltage, perfect support PWM;
3. The control of high power equipment. Product parameters and application: 1: working voltage: DC 5 v, 36 v. High and low level 2: the trigger signal source: the digital quantity (DC3.3 V - 20 V), can connect microcontroller IO port, PLC interfaces, dc power supply, etc., can answer the PWM signal, signal frequency 0-20 KHZ perfect support. 3: the output power: DC DC 5 v, 36 v, room temperature sustained current 15 a, power 400 w! Auxiliary cooling conditions, the maximum current can be up to 30 a.
4: application: output terminal can control high power devices, motors, light bulbs, LED lamp belt, dc motor, micro pump, solenoid valve, etc., can input, PWM control motor speed, the brightness of the lamp, etc.
5: life: unlimited switch;
Working temperature: - 40-85 ;
Size: 3.4 * 1.7 * 1.7 cm

v

Product Introduction:
1.Name:12V charger power control board
2.Model:XH-M601
3.Power Supply Voltage:13.8-14.8V
4.Relay Operating Voltage:12.4V
5.Relay Disconnect Voltage:14.8V
6.Voltage Tolerance: /-0.1V
7.Voltage Detection Way:DC voltmeter
8.Charging Type:12V storage battery
9.Potentiometer Adjustment:RP1 RP2
10.Size:50*32*18mm
Potentiometer Adjustment:
1.RP1:adjust storage battery start charging voltage (low voltage setting:clockwise becomes higher,counter-clockwise becomes lower)
2.RP2:adjust storage battery disconnect charging voltage (low voltage setting:clockwise becomes higher,counter-clockwise becomes lower)

Notice: The new tracking number for China Post Ordinary Small Packet Plus only can track it have been ship out of China, not more Tracking information ,even it arrived or not .
Please do not freeloaders,if you can not accept without more tracking information .
Please choose China Post Air Mail if you want a full tracking info.
Tracking info of  China Post Ordinary Small Packet Plus can be check here : www.17track.net/en
Provide tracking numbers ) order >7$,free ship via china post Registered air mail:mixed items ok in my store!

The properties of the lithium battery protection board:
Model: HX-3S-03
Overcharge voltage range: 4.25-4.35v±0.05v
Size: 30*30*2.8mm
Over-discharge voltage range: 2.3-3.0v±0.05v
Upper limit working current: 6-8A
Working temperature: -40--- 50 °C
Upper limit instantaneous current: 9-10A
Storage conditions: -40-- 80 ° C
Quiescent current: less than 30uA
Effective life: more than 30,000 hours
Internal resistance: less than 100mΩ
Short circuit protection: protection, delay self-recovery.
Charging voltage: 12.6V-13V

Features:
1.Battery type electricity quantity display 2.Wide application fields:lithium battery 3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity 4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on) Display Electricity Quantity Parameter: 1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity) 2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity 3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity 4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity 5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery
 
 
 
 
 
 
 
 
Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.
Product parameters: 1、Working voltage: 3-34V, working current 5mA. 2、Working temperature: -20~50 °C 3、The voltage error is 2% (requires higher accuracy, do not shoot) 4、Size: 43.5 * 20cm
Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because the electronic components should be used in a dry environment. Lithium-ion battery The battery indicator board that can be used in Ni-MH batteries, as long as the required voltage is within the range of the parameter list. How to use: Connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test. The digital tube displays the real-time battery power.
1. Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.

Features:
1.Battery type electricity quantity display 2.Wide application fields:lithium battery 3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity 4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on) Display Electricity Quantity Parameter: 1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity) 2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity 3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity 4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity 5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery
 
 
 
 
 
 
 
 
Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.
Product parameters: 1、Working voltage: 3-34V, working current 5mA. 2、Working temperature: -20~50 °C 3、The voltage error is 2% (requires higher accuracy, do not shoot) 4、Size: 43.5 * 20cm
Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because the electronic components should be used in a dry environment. Lithium-ion battery The battery indicator board that can be used in Ni-MH batteries, as long as the required voltage is within the range of the parameter list. How to use: Connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test. The digital tube displays the real-time battery power.
1. Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.

Features:
1.Battery type electricity quantity display 2.Wide application fields:lithium battery 3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity 4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on) Display Electricity Quantity Parameter: 1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity) 2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity 3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity 4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity 5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery
 
 
 
 
 
 
 
 
Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.
Product parameters: 1、Working voltage: 3-34V, working current 5mA. 2、Working temperature: -20~50 °C 3、The voltage error is 2% (requires higher accuracy, do not shoot) 4、Size: 43.5 * 20cm
Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because the electronic components should be used in a dry environment. Lithium-ion battery The battery indicator board that can be used in Ni-MH batteries, as long as the required voltage is within the range of the parameter list. How to use: Connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test. The digital tube displays the real-time battery power.
1. Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.

Features:
1.Battery type electricity quantity display 2.Wide application fields:lithium battery 3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity 4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on) Display Electricity Quantity Parameter: 1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity) 2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity 3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity 4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity 5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery
 
 
 
 
 
 
 
 
Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.
Product parameters: 1、Working voltage: 3-34V, working current 5mA. 2、Working temperature: -20~50 °C 3、The voltage error is 2% (requires higher accuracy, do not shoot) 4、Size: 43.5 * 20cm
Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because the electronic components should be used in a dry environment. Lithium-ion battery The battery indicator board that can be used in Ni-MH batteries, as long as the required voltage is within the range of the parameter list. How to use: Connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test. The digital tube displays the real-time battery power.
1. Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.

Features:
1.Battery type electricity quantity display 2.Wide application fields:lithium battery 3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity 4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on) Display Electricity Quantity Parameter: 1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity) 2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity 3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity 4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity 5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery
 
 
 
 
 
 
 
 
Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.
Product parameters: 1、Working voltage: 3-34V, working current 5mA. 2、Working temperature: -20~50 °C 3、The voltage error is 2% (requires higher accuracy, do not shoot) 4、Size: 43.5 * 20cm
Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because the electronic components should be used in a dry environment. Lithium-ion battery The battery indicator board that can be used in Ni-MH batteries, as long as the required voltage is within the range of the parameter list. How to use: Connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test. The digital tube displays the real-time battery power.
1. Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.

Features:
1.Battery type electricity quantity display 2.Wide application fields:lithium battery 3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity 4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on) Display Electricity Quantity Parameter: 1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity) 2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity 3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity 4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity 5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery
 
 
 
 
 
 
 
 
Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.
Product parameters: 1、Working voltage: 3-34V, working current 5mA. 2、Working temperature: -20~50 °C 3、The voltage error is 2% (requires higher accuracy, do not shoot) 4、Size: 43.5 * 20cm
Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because the electronic components should be used in a dry environment. Lithium-ion battery The battery indicator board that can be used in Ni-MH batteries, as long as the required voltage is within the range of the parameter list. How to use: Connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test. The digital tube displays the real-time battery power.
1. Battery-type power display, select the corresponding pad on the tin, you can detect the battery voltage corresponding to 1S-8S, very convenient.

D1 MINI
 
This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
1 analog input(3.3V max input)
a Micro USB connection
 
How to get started in :
 
Setup driver
Before you use miniD1 boards, you need setup CH340g driver.
 
Python
On Windows you need install Python 2.7.10.
On Linux & MAC OSX, you don't need install it, comes preinstalled with OS.
 
Installing Hardware package
There is two ways to install hardware package, Boards Manager or GIT
Installing with Boards Manager
Starting with 1.6.4,for Arduino allows installation of third-party platform packages using
Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and
64 bit).
 
<1>. Install for Arduino 1.6.7 from the for Arduino website.
<2>. Start for Arduino and open Preferences window.
<3>. into Additional Boards Manager URLs field. You can add multiple URLs, separating them
with commas.
<4>. Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266
Community (and don't forget to select your ESP8266 board from Tools > Board menu
after installation).
 
Installing with GIT (Recommend):
We recommend using GIT to install Hardware package, you can always get the latest version of it.
 
S2 MINI V1.0.0
 
 
 
Features
based ESP32-S2FN4R2 WIFI IC
Type-c USB
27 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported
ADC, DAC, I2C, SPI, UART, USB OTG
Compatible with MicroPython, Arduino
Default firmware: MicroPython
Compatible with LOLIN D1 mini shields
More: https://www.wemos.cc/en/latest/s2/s2_mini.html
D1 MINI V4.0.0
What's new about V4.0.0
Optimize the circuit
Add LOLIN I2C PORT
TYPE-C USB port
Features
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
Type-C USB Port
LOLIN I2C Port
Compatible with MicroPython, Arduino, Nodemcu
lots of Shields

D1 MINI
 
This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
1 analog input(3.3V max input)
a Micro USB connection
 
How to get started in :
 
Setup driver
Before you use miniD1 boards, you need setup CH340g driver.
 
Python
On Windows you need install Python 2.7.10.
On Linux & MAC OSX, you don't need install it, comes preinstalled with OS.
 
Installing Hardware package
There is two ways to install hardware package, Boards Manager or GIT
Installing with Boards Manager
Starting with 1.6.4,for Arduino allows installation of third-party platform packages using
Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and
64 bit).
 
<1>. Install for Arduino 1.6.7 from the for Arduino website.
<2>. Start for Arduino and open Preferences window.
<3>. into Additional Boards Manager URLs field. You can add multiple URLs, separating them
with commas.
<4>. Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266
Community (and don't forget to select your ESP8266 board from Tools > Board menu
after installation).
 
Installing with GIT (Recommend):
We recommend using GIT to install Hardware package, you can always get the latest version of it.
 
S2 MINI V1.0.0
 
 
 
Features
based ESP32-S2FN4R2 WIFI IC
Type-c USB
27 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported
ADC, DAC, I2C, SPI, UART, USB OTG
Compatible with MicroPython, Arduino
Default firmware: MicroPython
Compatible with LOLIN D1 mini shields
More: https://www.wemos.cc/en/latest/s2/s2_mini.html
D1 MINI V4.0.0
What's new about V4.0.0
Optimize the circuit
Add LOLIN I2C PORT
TYPE-C USB port
Features
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
Type-C USB Port
LOLIN I2C Port
Compatible with MicroPython, Arduino, Nodemcu
lots of Shields

D1 MINI
 
This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
1 analog input(3.3V max input)
a Micro USB connection
 
How to get started in :
 
Setup driver
Before you use miniD1 boards, you need setup CH340g driver.
 
Python
On Windows you need install Python 2.7.10.
On Linux & MAC OSX, you don't need install it, comes preinstalled with OS.
 
Installing Hardware package
There is two ways to install hardware package, Boards Manager or GIT
Installing with Boards Manager
Starting with 1.6.4,for Arduino allows installation of third-party platform packages using
Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and
64 bit).
 
<1>. Install for Arduino 1.6.7 from the for Arduino website.
<2>. Start for Arduino and open Preferences window.
<3>. into Additional Boards Manager URLs field. You can add multiple URLs, separating them
with commas.
<4>. Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266
Community (and don't forget to select your ESP8266 board from Tools > Board menu
after installation).
 
Installing with GIT (Recommend):
We recommend using GIT to install Hardware package, you can always get the latest version of it.
 
S2 MINI V1.0.0
 
 
 
Features
based ESP32-S2FN4R2 WIFI IC
Type-c USB
27 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported
ADC, DAC, I2C, SPI, UART, USB OTG
Compatible with MicroPython, Arduino
Default firmware: MicroPython
Compatible with LOLIN D1 mini shields
More: https://www.wemos.cc/en/latest/s2/s2_mini.html
D1 MINI V4.0.0
What's new about V4.0.0
Optimize the circuit
Add LOLIN I2C PORT
TYPE-C USB port
Features
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
Type-C USB Port
LOLIN I2C Port
Compatible with MicroPython, Arduino, Nodemcu
lots of Shields

D1 MINI
 
This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
1 analog input(3.3V max input)
a Micro USB connection
 
How to get started in :
 
Setup driver
Before you use miniD1 boards, you need setup CH340g driver.
 
Python
On Windows you need install Python 2.7.10.
On Linux & MAC OSX, you don't need install it, comes preinstalled with OS.
 
Installing Hardware package
There is two ways to install hardware package, Boards Manager or GIT
Installing with Boards Manager
Starting with 1.6.4,for Arduino allows installation of third-party platform packages using
Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and
64 bit).
 
<1>. Install for Arduino 1.6.7 from the for Arduino website.
<2>. Start for Arduino and open Preferences window.
<3>. into Additional Boards Manager URLs field. You can add multiple URLs, separating them
with commas.
<4>. Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266
Community (and don't forget to select your ESP8266 board from Tools > Board menu
after installation).
 
Installing with GIT (Recommend):
We recommend using GIT to install Hardware package, you can always get the latest version of it.
 
S2 MINI V1.0.0
 
 
 
Features
based ESP32-S2FN4R2 WIFI IC
Type-c USB
27 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported
ADC, DAC, I2C, SPI, UART, USB OTG
Compatible with MicroPython, Arduino
Default firmware: MicroPython
Compatible with LOLIN D1 mini shields
More: https://www.wemos.cc/en/latest/s2/s2_mini.html
D1 MINI V4.0.0
What's new about V4.0.0
Optimize the circuit
Add LOLIN I2C PORT
TYPE-C USB port
Features
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
Type-C USB Port
LOLIN I2C Port
Compatible with MicroPython, Arduino, Nodemcu
lots of Shields

D1 MINI
 
This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
supported(except D0)
1 analog input(3.3V max input)
a Micro USB connection
 
How to get started in :
 
Setup driver
Before you use miniD1 boards, you need setup CH340g driver.
 
Python
On Windows you need install Python 2.7.10.
On Linux & MAC OSX, you don't need install it, comes preinstalled with OS.
 
Installing Hardware package
There is two ways to install hardware package, Boards Manager or GIT
Installing with Boards Manager
Starting with 1.6.4,for Arduino allows installation of third-party platform packages using
Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and
64 bit).
 
<1>. Install for Arduino 1.6.7 from the for Arduino website.
<2>. Start for Arduino and open Preferences window.
<3>. into Additional Boards Manager URLs field. You can add multiple URLs, separating them
with commas.
<4>. Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266
Community (and don't forget to select your ESP8266 board from Tools > Board menu
after installation).
 
Installing with GIT (Recommend):
We recommend using GIT to install Hardware package, you can always get the latest version of it.
 
S2 MINI V1.0.0
 
 
 
Features
based ESP32-S2FN4R2 WIFI IC
Type-c USB
27 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported
ADC, DAC, I2C, SPI, UART, USB OTG
Compatible with MicroPython, Arduino
Default firmware: MicroPython
Compatible with LOLIN D1 mini shields
More: https://www.wemos.cc/en/latest/s2/s2_mini.html
D1 MINI V4.0.0
What's new about V4.0.0
Optimize the circuit
Add LOLIN I2C PORT
TYPE-C USB port
Features
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
Type-C USB Port
LOLIN I2C Port
Compatible with MicroPython, Arduino, Nodemcu
lots of Shields

Application:
This module can be applied to fields in the input voltage is higher than the step-down output voltage, such as batteries, power transformers, DIY adjustable power supply, 24V Car T of the power equipment industry buck, 12V switch 3.3V, 12V switch 5V, 24V switch 5V, 24V switch 12V, 36V 24V turn and so on.
Parameters:
Product size: 54mm * 24mm* 15mm  (l x w x h)
Colours:Blue        Package Weight: :15g/pcs
Materials: FR4 electronic components
Name: XL4015  5A ADJ DC - DC Step-down power Module ( Step Down Adjustable )
 
 

Module Highlights:
Support Lead-acid battery and Acting Battery,voltage range:6V~60V;
 Can display voltage,percent of battery,charging time at the same time through LCD;
The function is very powerful,realizes the automatic charge control, the control charge time, also may set up and uploads the corresponding parameter through the serial port;
Function description:
1. Automatic Charge control function:
 By setting the volt-HI:'UP' volt-LI:'dn';When the battery voltage is below the volt-LI:'dn',the relay leads,the charger begins to charge the battery;when the battery voltage is up to volt-HI:'UP',the relay is diconnected and the automatic charge is completed once;
2. Charge Time Control Function:
How to turn on the time control function?
After entering the parameter set, set the parameter op is non-zero, then turn on the time control function, op default parameter is:--:--h, the default does not turn on time control function;
After the opening Time control function (OP is non-zero), when the battery voltage is the lower volt-LI'dn', the charger began to charge the battery, the system began to clock; During the timing, the battery voltage ≥ volt-HI'UP', relay disconnect; If the OP time is up, the battery voltage is still the lower volt-LI'dn', the relay keeps the conduction, automatically closes the charge time control function, and flashes the H:ER to remind the user, the time parameter setting is unreasonable; Press any key to stop flashing;
 Note: Time format: 00:59 (00 for hours, 59 for minutes) The maximum time is 99:59, which is 100 hours.
3. Serial data upload and parameter setting function:
The system supports UART data upload and parameter setting UART:115200,8,1
Cmd                     Func
on             Relays enable to open
off             Relays disable to open
start            Start data upload
stop            Stop data upload
read         Read the param setting
dw10.0         Set volt-LI:'dn'
up20.0         Set volt-HI:'UP'
xx:xx          Set the charge time OP 00:00 stop charge time
 
Data Upload message Format:
 Battery voltage battery percent charge time charge status 12.0V,020% ,00:10,OP
 
Parameter Setting:
Press and hold the SET key to enter the setting interface;
Switch the parameters you want to set by short press SET;
After the selection of parameters, can be set by the UP/DOWN key to support the short press, long press (fast increase or decrease); To set other parameters, repeat step b, c);
After all parameters are set, long press set key to exit and save;
The Key Function Description:
In the Run interface (main interface):
Short press SET button to display the current set of parameters; Short press UP button, toggle display charge percentage and charging time;
Short Press DOWN button, select Turn on/off relay enabling, if the relay can be closed, will show ' off ' as a reminder;
Long press UP button, switch low power state
on:No operation in 10 minutes turn off backlight
OFF: Backlight is always bright
Long press SET button,enter the parameter settings.
Calculation of voltage percentage:
voltage percentage = battery voltage/(volt-HI - volt-LI)
 Additional Features
a) Charging time recording function: not open charging time control, the product will record a full time, when the entry time display interface, flashing display charging time, and then exit time display interface or next charge to open (relay conduction) when empty;
b) Automatic parameter detection: When the parameters are set, exit, if volt-LI dn≥ volt-HI UP, the system will flash display "ERR" as a reminder;
c) Battery Access detection: This product attached to the battery, if not connected to the battery, the system will be shown in the downlink "NbE" as a reminder
Analysis of common failures
Q: How much is suitable for V level use? How much v voltage does this module fit?
 A: This section is suitable for the minimum 6V, the highest 60V voltage range, the maximum expenditure level 48V, because 48V battery full of electricity in 60V, and then a high fever, if your battery is higher than 48V, please select other section.
Q: The power of the subsequent electrical appliances snapped! LED flashing?
A: This is because your charging current is too large or the battery capacity is too small to cause a power to immediately reach the voltage limit, relay disconnect, disconnect, the voltage and quickly down to the lower voltage, and began to recharge, cycle, at this time you want to reduce the charging current only line, Usually the charging current is the battery capacity of the very 1 to 1.5, such as 20AH battery charging current generally around 2-3a! Note that a large current charge will cause the battery fever accelerated aging, drum kits and even explosions!
Q: What control mode? Can I cycle the charge automatically? Can I use the side charge? Can I limit the flow?
A: This is voltage control, For example, set the voltage limit of 12.0V, voltage up to 14.5V, voltage charge to 14.5V this value on the power off, voltage down to the 12.0V relay closed and start charging, can be filled with side, voltage control mode only to turn off and open, can not limit the flow, charging current completely depends on your charger!
Q: Input 12V can or not charge 24V battery, or enter 48V can give 12V battery charge?
A:This is a simple voltage controller, only play the role of switch, can not swing to the battery charge, so you want to give what battery charge to be ready what kind of charger! It's necessary!

Module Highlights:
Support Lead-acid battery and Acting Battery,voltage range:6V~60V;
 Can display voltage,percent of battery,charging time at the same time through LCD;
The function is very powerful,realizes the automatic charge control, the control charge time, also may set up and uploads the corresponding parameter through the serial port;
Function description:
1. Automatic Charge control function:
 By setting the volt-HI:'UP' volt-LI:'dn';When the battery voltage is below the volt-LI:'dn',the relay leads,the charger begins to charge the battery;when the battery voltage is up to volt-HI:'UP',the relay is diconnected and the automatic charge is completed once;
2. Charge Time Control Function:
How to turn on the time control function?
After entering the parameter set, set the parameter op is non-zero, then turn on the time control function, op default parameter is:--:--h, the default does not turn on time control function;
After the opening Time control function (OP is non-zero), when the battery voltage is the lower volt-LI'dn', the charger began to charge the battery, the system began to clock; During the timing, the battery voltage ≥ volt-HI'UP', relay disconnect; If the OP time is up, the battery voltage is still the lower volt-LI'dn', the relay keeps the conduction, automatically closes the charge time control function, and flashes the H:ER to remind the user, the time parameter setting is unreasonable; Press any key to stop flashing;
 Note: Time format: 00:59 (00 for hours, 59 for minutes) The maximum time is 99:59, which is 100 hours.
3. Serial data upload and parameter setting function:
The system supports UART data upload and parameter setting UART:115200,8,1
Cmd                     Func
on             Relays enable to open
off             Relays disable to open
start            Start data upload
stop            Stop data upload
read         Read the param setting
dw10.0         Set volt-LI:'dn'
up20.0         Set volt-HI:'UP'
xx:xx          Set the charge time OP 00:00 stop charge time
 
Data Upload message Format:
 Battery voltage battery percent charge time charge status 12.0V,020% ,00:10,OP
 
Parameter Setting:
Press and hold the SET key to enter the setting interface;
Switch the parameters you want to set by short press SET;
After the selection of parameters, can be set by the UP/DOWN key to support the short press, long press (fast increase or decrease); To set other parameters, repeat step b, c);
After all parameters are set, long press set key to exit and save;
The Key Function Description:
In the Run interface (main interface):
Short press SET button to display the current set of parameters; Short press UP button, toggle display charge percentage and charging time;
Short Press DOWN button, select Turn on/off relay enabling, if the relay can be closed, will show ' off ' as a reminder;
Long press UP button, switch low power state
on:No operation in 10 minutes turn off backlight
OFF: Backlight is always bright
Long press SET button,enter the parameter settings.
Calculation of voltage percentage:
voltage percentage = battery voltage/(volt-HI - volt-LI)
 Additional Features
a) Charging time recording function: not open charging time control, the product will record a full time, when the entry time display interface, flashing display charging time, and then exit time display interface or next charge to open (relay conduction) when empty;
b) Automatic parameter detection: When the parameters are set, exit, if volt-LI dn≥ volt-HI UP, the system will flash display "ERR" as a reminder;
c) Battery Access detection: This product attached to the battery, if not connected to the battery, the system will be shown in the downlink "NbE" as a reminder
Analysis of common failures
Q: How much is suitable for V level use? How much v voltage does this module fit?
 A: This section is suitable for the minimum 6V, the highest 60V voltage range, the maximum expenditure level 48V, because 48V battery full of electricity in 60V, and then a high fever, if your battery is higher than 48V, please select other section.
Q: The power of the subsequent electrical appliances snapped! LED flashing?
A: This is because your charging current is too large or the battery capacity is too small to cause a power to immediately reach the voltage limit, relay disconnect, disconnect, the voltage and quickly down to the lower voltage, and began to recharge, cycle, at this time you want to reduce the charging current only line, Usually the charging current is the battery capacity of the very 1 to 1.5, such as 20AH battery charging current generally around 2-3a! Note that a large current charge will cause the battery fever accelerated aging, drum kits and even explosions!
Q: What control mode? Can I cycle the charge automatically? Can I use the side charge? Can I limit the flow?
A: This is voltage control, For example, set the voltage limit of 12.0V, voltage up to 14.5V, voltage charge to 14.5V this value on the power off, voltage down to the 12.0V relay closed and start charging, can be filled with side, voltage control mode only to turn off and open, can not limit the flow, charging current completely depends on your charger!
Q: Input 12V can or not charge 24V battery, or enter 48V can give 12V battery charge?
A:This is a simple voltage controller, only play the role of switch, can not swing to the battery charge, so you want to give what battery charge to be ready what kind of charger! It's necessary!

Features:
100% brand new and high quality.
1. Battery type electricity quantity display.
2. Wide application fields: lithium battery.
3. Using Method: connect display board positive and negative port with tested battery positive and negative port, digital tube will display real-time battery electricity quantity.
4. Digital Color: outline red, display block blue (when battery electricity quantity is full, it will be all on).
 
Display Electricity Quantity Parameter: (note:N represents battery quantity) 
1.When battery voltage is over N*3.3V, it will illuminate 1 block electricity quantity. 
2.When battery voltage is over N*3.5V, it will illuminate 2 blocks electricity quantity.
3.When battery voltage is over N*3.7V, it will illuminate 3 blocks electricity quantity.
4.When battery voltage is over N*3.9V, it will illuminate 4 blocks electricity quantity.
5.When battery voltage is less than N*3.3V, 4 blocks display will be off; it represents battery is less than 3.3V, and you can charge the battery.
 
Specifications:
Material: Plastic and Metal
Shell Color: Black
Digital Color: outline Red, display block Blue
Type: 1#: Without case version;  2#: With case version (Optional)
     Without case version: 1S Single 3.7V Lithium Battery Capacity Indicator Module 4.2V Blue Display Electric Vehicle Battery Power Tester Li-po Li-ion
     With case version: 1S 3.7V Lithium Battery Capacity Indicator Module 4.2V Blue Display Electric Vehicle Battery Power Tester Li-ion With Shell
Size: 
     Without case version: 31×20mm/1.22×0.79in (Approx.)
     With case version: 48×29×21mm/1.89×1.14×0.83in (Approx.)
Quantity: 1 PC (other accessories demo in the picture is not included)
 
Note: 
1.Transition: 1cm=10mm=0.39inch
2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

 
 
 
128*64 LED display module for Arduino, supports many control chip.
Fully compatible with for Arduino, 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
Ultra-low power consumption: full screen lit 0.08W
Super high brightness and contrast are adjustable
With embedded driver/controller
Interface type is IIC
Pin Definition: GND, VCC ,SCL, SDA
Pins: 4 pins
Voltage: 3V ~ 5V DC
Working Temperature: -30 ° ~ 70 °
Character Colors: White
Drive Duty: 1/64 Duty
High resolution: 128 * 64
Panel Dimensions: 26.70* 19.26* 1.85mm/1.03*0.76*0.07 inch(approx)
Active Area: 21.74* 11.2mm /0.86*0.44 inch(approx)
Driver IC: SSD1306
 
 
Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness
 
 
Package Included:
 
 

 
 
 
128*64 LED display module for Arduino, supports many control chip.
Fully compatible with for Arduino, 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
Ultra-low power consumption: full screen lit 0.08W
Super high brightness and contrast are adjustable
With embedded driver/controller
Interface type is IIC
Pin Definition: GND, VCC ,SCL, SDA
Pins: 4 pins
Voltage: 3V ~ 5V DC
Working Temperature: -30 ° ~ 70 °
Character Colors: White
Drive Duty: 1/64 Duty
High resolution: 128 * 64
Panel Dimensions: 26.70* 19.26* 1.85mm/1.03*0.76*0.07 inch(approx)
Active Area: 21.74* 11.2mm /0.86*0.44 inch(approx)
Driver IC: SSD1306
 
 
Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness
 
 
Package Included:
 
 

 
 
 
128*64 LED display module for Arduino, supports many control chip.
Fully compatible with for Arduino, 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
Ultra-low power consumption: full screen lit 0.08W
Super high brightness and contrast are adjustable
With embedded driver/controller
Interface type is IIC
Pin Definition: GND, VCC ,SCL, SDA
Pins: 4 pins
Voltage: 3V ~ 5V DC
Working Temperature: -30 ° ~ 70 °
Character Colors: White
Drive Duty: 1/64 Duty
High resolution: 128 * 64
Panel Dimensions: 26.70* 19.26* 1.85mm/1.03*0.76*0.07 inch(approx)
Active Area: 21.74* 11.2mm /0.86*0.44 inch(approx)
Driver IC: SSD1306
 
 
Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness
 
 
Package Included:
 
 

 
 
 
128*64 LED display module for Arduino, supports many control chip.
Fully compatible with for Arduino, 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
Ultra-low power consumption: full screen lit 0.08W
Super high brightness and contrast are adjustable
With embedded driver/controller
Interface type is IIC
Pin Definition: GND, VCC ,SCL, SDA
Pins: 4 pins
Voltage: 3V ~ 5V DC
Working Temperature: -30 ° ~ 70 °
Character Colors: White
Drive Duty: 1/64 Duty
High resolution: 128 * 64
Panel Dimensions: 26.70* 19.26* 1.85mm/1.03*0.76*0.07 inch(approx)
Active Area: 21.74* 11.2mm /0.86*0.44 inch(approx)
Driver IC: SSD1306
 
 
Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness
 
 
Package Included:
 
 

It's LM2596HVS Not LM2596S Chip,please know it
Type /name:LM2596HVS DC-DC step-down module
Input Voltage:4.5V ~ 53V
Output Voltage:3V ~ 40V
Output Current:3A (max)
Conversion efficiency:92% (the highest)
Output Ripple:<30mV
Switching frequency:150KHz
Operating Temperature:-45 ° ~ 85 °
Size:43mm * 21mm * 14mm (L * W* H)
IN-IN inputPositiveInput Negative!
Positive outputOUT OUT-output negative
Input voltage range: DC4.5V to53V (inputvoltagemust be greater thanthe outputvoltageto1.5Vor morehigh.Could notboost)
Output voltage range: DC3Vto 40Vvoltage is continuously adjustable, high efficiency(up to 92% )the maximum outputcurrent of3A.
Measured12V input, 5Voutputcurrent is 1Aload regulationrate of less than1%
Note: This is thestep-down module, the input voltagemust behigher than the outputvoltage.
 
Outputcurrent is greater than2.5A (or outputpower greater than10W)to work long hours, please addheat sink. 

Notice: The new tracking number for China Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking info.
 
Tracking info of  China Post Ordinary Small Packet Plus can be check here: www.17track.net/en
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

 
Description:
100% brand new and high quality
Quantity:1pcs
Temperature control range: -50 ~ 110 ° C
Resolution: -9.9 to 99.9 is 0.1° C , 1 ° C temperature ranges other
Measurement Accuracy: 0.1 ° C
Control accuracy: 0.1 ° C
Hysteresis accuracy: 0.1 ° C
Refresh rate: 0.5 S
Input Power: DC12V
Measuring inputs: NTC (10K 0.5% ) Waterproof sensor 0.5M
Output: 1 Channel relay output, capacity = 10A
Environmental requirements: -10 ~ 60 degree Humidity 20% -85%
Size: 48 (L) * 40 (W) * 14 (D) mm
Power consumption: Static current:<=35MA, Attract current:<=65MA
 
 
 
 

Features:
1) high-accuracy voltage detection circuit;
2) terminal of the charger using high voltage device;
3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);
4) MOS transistor can control the battery charge and discharge;
 
 
Parameter:
Over charge voltage: 4.25±0.05V
Over charge release voltage:4.23±0.05V
Over discharge voltage:2.54±0.1V
Maximal continuous charging current: 2A
Maximal continuous Discharging current: 2A
Over current protection: 3A
Size: L40*W4*T3mm
Weight: 10g

Features:
1) high-accuracy voltage detection circuit;
2) terminal of the charger using high voltage device;
3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);
4) MOS transistor can control the battery charge and discharge;
 
 
Parameter:
Over charge voltage: 4.25±0.05V
Over charge release voltage:4.23±0.05V
Over discharge voltage:2.54±0.1V
Maximal continuous charging current: 2A
Maximal continuous Discharging current: 2A
Over current protection: 3A
Size: L40*W4*T3mm
Weight: 10g

Module Parameters
Module Properties:  non-isolated buck module (BUCK) synchronous rectification
Input voltage:  DC 6-24V
Output voltage:  5.1-5.2V
Output current: 3A MAX 
Conversion efficiency:  can up to 97.5% (6.5V step down to 5V 0.7A) (after short reverse protection and fuses test value)
Switch frequency:  500KHz
Output ripple: 10mV around (12V to 5V3A) 20M bandwidth
Output indicator: Output voltage indicator is red
Operating temperature: Industrial grade (-40 Celsuis to 85 Celsuis) (the higher the ambient temperature, the lower the output power)
Output overvoltage protection: Yes, input 1.5A fuse, output 5V have 300W TVS tube clamp protection.
Full load temperature: 30 Celsuis
Static current: 0.85 mA
Load regulation:  ± 1%
Voltage Regulation:  ± 0.5%
Dynamic response speed:  5% 200uS
Output short circuit protection: Yes, but please do not short circuit for a long time
Input reverse polarity protection: Yes, there is reverse polarity protection diode
Connection mode:  Welding
Input mode:  Welding
Output mode: US

Output Current : 1.5A ( minimum ), 2.2A ( typical value )
Input-output voltage difference (VI-VO): 40Vdc ( max )
Adjustable output voltage range : 1.2 ~ 37V
Working temperature : -55 ° C to 150 ° C
Current output : 1.5A
Voltage Input : 4.2 ~ 40 V
Operating temperature : 0 ° C ~ 125 ° C
Characteristic frequency : 100 (MHz)
Module size : 35.6 (mm) x16.8 (mm)
Input mode : VIN input positive level , GND input negative
Output : VOUT output positive level , GND output negative