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Driver chip: SSD1327 Module interface: I2C Display color: white Gray scale: 16 bits High resolution: 128×128 Viewing angle: greater than 160° Operating voltage: 3.3V / 5V Suitable For Arduino /For Raspberry Pi / For STM32

Driver chip: SSD1327 Module interface: I2C Display color: white Gray scale: 16 bits High resolution: 128×128 Viewing angle: greater than 160° Operating voltage: 3.3V / 5V Suitable For Arduino /For Raspberry Pi / For STM32

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Hot Sale Adjust IR Pyroelectric Infrared IR PIR Motion Sensor Detector
Module HC-SR501
Item Description:
Product Type: HC--SR501 Body Sensor Module
Operating voltage range: DC 4.5-20V
Quiescent Current: <50uA
Level output: High 3.3 V /Low 0V
Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)
Delay time: 5-200S(adjustable) the range is (0.xx second to tens of second)
Block time: 2.5S(default)Can be made a range(0.xx to tens of seconds
Board Dimensions: 32mm*24mm
Angle Sensor: <100 ° cone angle
Operation Temp: -15- 70 degrees
Lens size sensor: Diameter:23mm(Default)

Description
ME-BME280 is a Breakout Board featuring a Bosch Sensortec ME280 Temperature, Humidity & Pressure Sensor. 
The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm, and two mounting holes 3.5mm.
Default setting of the board; single power rail Vdd=Vdd_IO (solder link GS1), pull-ups resistors (R2, R3) 10k, protocol selector resistor 0ohm (R1), decoupling capacitors 0.1uF on both power supply pins Vdd & Vdd_IO.
If you connect board to both power rails VDD_IO 1.8V and VDD 3.3V be sure to remove the power rail jumper GS1!
 
BME280 Features
- Package 2.5 mm x 2.5 mm x 0.93 mm metal lid LGA
- Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
- Supply voltage VDD main supply voltage range: 1.71 V to 3.6 V
   VDDIO interface voltage range: 1.2 V to 3.6 V
- Current consumption 1.8 uA @ 1 Hz humidity and temperature
   2.8 uA @ 1 Hz pressure and temperature
   3.6 uA @ 1 Hz humidity, pressure and temperature
   0.1 uA in sleep mode
- Operating range -40… 85 C, 0…100 % rel. humidity, 300…1100 hPa- Humidity sensor and pressure sensor can be independently enabled/disabled
 
 
Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!
 
This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with  ±1 meter accuracy
 
The BME280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
 
 

 
Specifications:
Color: White Quantity: 1 pc Alarm Diameter: 29mm / 1.14" Alarm Height: 15mm / 0.59” 2 Mounting Holes distance: 40mm / 1.57" 2 Wires length: 105mm / 4.13" Rated Voltage: 12V Operating Voltage: 3-24V Rated Current(MAX): 20mA Min Sound Output at 10 cm: 95 DB Resonant Frequency: 3100±500 Operating Temperature: -20～ 80° Continuous Sound Mounting Holes

 

Product Description:
100% brand new and high quality.
Module Properties: Non-isolated step-down module (BUCK)
Rectification: Synchronous rectification
Input voltage: DC 4.75V-23V
Output voltage: DC 1.0V-17V (Adjustable, Output < Input)
Output current: Rated current 1.8A (3A MAX, can not be prolonged)
Conversion efficiency:96% (highest)
Switching Frequency: 340KHz.
Output ripple:30mV(no-load)
Load regulation:±0.5%
Voltage regulation:±2.5%
Operating Temperature: Industrial (-40 ~ 85)
Short circuit protection: No(Please do not short-circuit)
Input Reverse protection: No(Can not be reversed)
22mm*17mm*4mm(L*W*H)/0.87'' * 0.67'' * 0.16'' approx Supper mini board
 
 

Please visit our forum for more information: http://forum.mhetlive.com/topic/42/mh-et-live-microwave-sensor Overview The microwave motion sensor is a microwave moving object detector designed using Doppler radar principle. Unlike ordinary infrared detectors, microwave sensors detect the motion of an object by detecting microwaves reflected from the object. The detection object will not be limited to the human body, and there are many other things. The microwave sensor is not affected by the ambient temperature, has a long detection range and high sensitivity, and is widely used in industrial, transportation and civil devices such as vehicle speed, automatic doors, sensor lights, and parking sensors. Because of the universality of microwave sensor detection objects, in actual life applications, it will be matched with another sensor for targeted detection. Such as microwave sensor infrared pyroelectric sensor, can effectively determine whether someone passed, will not be the sun, was disturbed by the color of clothing, will not respond to other objects. characteristic This detection method has the following advantages over other detection methods: 1. non-contact detection; 2. not affected by temperature, humidity, noise, airflow, dust, light, etc., suitable for harsh environments; 3. anti-radio frequency interference ability; 4.the output power is small, do not harm the body structure; 5. detection distance; 6. Support the detection of non-life objects 7. the direction of the microwave is very good, the speed is equal to the speed of light; Product parameters Working voltage : 5V±0.25V Operating Current (CW): 50mA max., 30mA typical size: R=30.6mm Emission parameters: Detection distance: Used with adapter plate or reference circuit below, 2-16m continuously adjustable (minimum 2m, maximum 16m) Helium emission frequency : 10.525 GHz Frequency setting accuracy : 3MHz Output power (minimum): 13dBm EIRP harmonic emission: <-10dBm Average current (5% DC) : 2mA typ. Pulse width (Min.): 5uSec Duty cycle (Min.): 1% Receive parameters: Sensitivity (10dB S/N ratio) 3Hz to 80Hz Bandwidth: -86dBm 10.3Hz to 80Hz Bandwidth Clutter 10uV Antenna gain: 8dBi Vertical 3dB beam width: 36 degrees Water level 3dB Beam width: 72 degrees Size Chart Pin Description

GY-US42 Flight Control Ultrasonic Ranging Module Serial UART TTL TTL PWM Pixhawk GY-US42V2 Replace MB1242 / SRF02
Product introduction
GY-US42 is a high-quality rangefinder sensor module. Working voltage 3-5V, power consumption, small size, easy installation.
Its working principle is: the probe emits ultrasonic waves, after being irradiated to the measured object, the probe receives and returns the acoustic wave, and utilizes the time difference to calculate the actual distance.
Module has 3 ways to read data: Serial UART (TTL level), IIC, pulse PWM mode.
The serial port baud rate 9600bps and 115200bps, configurable, continuous, ask for the output of two ways. Power-save settings.
IIC can modify the internal address to facilitate an IIC bus to connect multiple modules at the same time. Pulse PWM output, same as SR04. Module can adapt to different working environment, direct link with the microcontroller. Connect the computer when you need USB to TTL module, direct connection. IIC mode can be direct, APM, Pixhawk and other flight control links.
Provide aroduino, 51, stm32 microcontroller communication procedures. Does not provide schematics and internal microcontroller source. As a result of sending and receiving integrated ultrasonic probe, ranging blind range of about 20cm, ranging within 20cm is invalid.
 
Product Features
 
Power supply 3-5V
Built-in MCU calculates the distance
IIC, serial port, PWM communication format
Close 40HZ measurement cycle
With the corresponding PC software
Integrated probe, small size
 
Technical Parameters
Measuring range: 20cm ~ 720cm (VCC = 5V)
Resolution: 1cm
Response frequency: 15HZ (full range)
Working voltage: 3-5V
Working current: 9mA (VCC = 5V)
Operating temperature: -20 degrees Celsius ~ 65 degrees Celsius
Storage temperature: -40 degrees Celsius to 85 degrees Celsius

Description:
 
TDA2030A audio amplifier circuit, often using V-5-pin single in-line plastic package structure. The integrated circuit is widely used in car stereo receiver tape recorders, medium-power audio equipment, with small size, large output power, distortion and other characteristics. And has an internal protection circuit.
Feature:
1. onboard TDA2030A audio power amplifier chip
2. mono 18W amplifier circuit design
3.on-board speaker wiring blocks
4.onboard 10K adjustable resistance, you can adjust the volume of amplification
5. Onboard power indicator
6. the chip has been the main pin leads, you can directly enter the audio signal
7. the working voltage: 6 ~ 12V
8.The peak output current is 3A

10PCS Single Bus DHT11 Digital Temperature and Humidity Sensor for Arduino DHT11 Probe

10Lot 5V 4-Phase 28YBJ-48 DC Gear Step 10PCS Stepper Motor 10PCS ULN2003 Driver Board ULN2003 For Arduino PIC MCU DIY
 
 
Parts NO.: 5V 4-phase Stepper Motor Driver Board ULN2003 for Ard uino
Package :
Quantity : 20 PCS = 10 x Stepper motor 10x ULN2003 Driver board
Electronics Description :
Description:
Rated Voltage: DC5V
4-phase
Reduction Ratio: 1/64
Step Torque Angle: 5.625/64
DC Resistance: 200Ω±7% (25)
Insulation Resistance: >10MΩ (500V)
Dielectric Strength: 600V AC / 1mA / 1s
Insulation Grade: A
No-load Pull in Frequency: >600Hz
No-load Pull out Frequency: >1000Hz
Pull in Torque: >34.3mN.m(120Hz)
Detent Torque: >34.3mN.m
Temperature Rise: <40K(120Hz)
Noise: <40dB (120Hz, No load, 10cm)
Board Size: Approx. 29 ×21 mm
Package list:
10 x Stepper motor
10 x ULN2003 Driver board

 

 

 TMC2130 Features: Supports three control modes of SPI/STEP/DIR interface . Combined maximum efficiency and optimum motor torque operation without noise. High accuracy no sensor motor load detection High load driver will not lost step. Parameter Configuration:CFG Microsteps: Up to 1/256 MicroPlyer: 1/256 Logic Voltage VI0: 3-5V Motor Voltage : 5.5-46V Motor Phase Current: 1.2A RMS, 2.5A Peak Attention: 1. Adjust the potentiometer with a special ceramic screwdriver. Otherwise, the drive is easy to be damaged. 2. The heat sink on the drive block is stuck to the middle of the chip (the other driver is the same), otherwise, it is liable to be shortened in current with the next pin.

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

This version is in the original version of the optimization, mainly for foreign customers on product quality and functional requirements of the case of high design, both to ensure that the original and fully compatible with the same, but also easy to use.
 
Advantages:
1 completely solve the traditional UNO board win7 and win8 system is not compatible with the above instability. Especially in the pirated 64-bit WIN7 system, the official board can not be installed driver, and this version is very simple and easy to install.
2. Increase the pin socket, easy to use DuPont line.
3. Replace the 16u2, so that the cost reduced to half, consumers get the most benefits
 
Download the program simple and convenient. You can simply use the sensor, a variety of electronic components connected (such as: LED lights, buzzers, buttons, photoresistors, etc.), to make all kinds of interesting works.
      The use of high-speed microprocessor controller (ATMEGA328), the development of user interface and environment are very simple, easy to understand, very suitable for beginners to learn.
Performance description
 I / O digital input / output terminals 0 ~ 13.
 I / O analog input / output terminals 0 ~ 5.
Support ISP download function.
Input voltage: connected to the computer USB without external power supply, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V DC voltage output and 3.3V DC voltage output.
Using Atmel Atmega328 microprocessor controller

New Product Introduction:
 
1: The new United States imported chips, definitely not homemade chips, disassemble chip.
 
2: The maximum output current 3A, long-running 2.1A, sufficient margin.
 
3: The new design, circuit design does not require electrolytic capacitors and tantalum capacitors (electrolytic capacitor life is short, tantalum risk of explosion). Now with the use of high-end large-size solid ceramic capacitor circuit (MCC) 2 Ke.
 
4: The new program uses synchronous rectification circuit conversion efficiency is very high, in turn 5V 0.7A 6.5V when efficiency up to 97.5% , 12V turn 5V 1A, they also reached 94% , unlike some peers efficiency is only 60-70% . (Efficiency test removed the input reverse polarity protection diode and fuse drop).
 
5: Big shielded inductor current, low resistance, to maximize conversion efficiency. Reduce heat.
 
6: Ultra-small size, 20 (L) * 11 (W) * 5 (H) mm, the whole network to a minimum.
 
7: Ultra-low quiescent current, quiescent current of 0.85 mA. Connected to the car battery without adding switches can be connected to the cigarette lighter line or the ACC power cable line.
 
8: Output Integrated adjustable and fixed voltage, fixed output does not need customization, direct can be very voltage, potentiometer can adjust, versatility is very strong on the board under the spot welding
 
9: Integration enabled port, default mode of operation, low close, bring convenience to control

CH340G Replace FT232RL
8 analog inputs ports:A0 ~ A7
14 Digital input / output ports:TX,RX,D2 ~ D13
6 PWM ports:D3, D5, D6, D9, D10, D11
1 pairs of TTL level serial transceiver ports RX / TX
Using Atmel Atmega328P-AU MCU
There is bootloader installed in it
Support USB download and Power
Support for external 5V ~ 12V DC power supply
Support power supply by 9V battery
Support ISP download  

10 Kinds Stainless Steel Needle Set

Specification:
Brand new and high quality. 
chip board ENC28J60/SS. 
the board 25MHZ crystal. 
the network interface board HR911105A. 
3.3 V power supply pin. 
Size:5cm x 2cm x 1.5cm /1.92''x0.72'' 
Weight: 11g

Warm prompt:
 
Dear buyer, Our cheapst transportation services Econmic category logistics (SunYou Economic Air Mail , China post Ordinary Small Packet Plus) can be traced only befor it arrive your country , please choose Standard category logistics if you want a full tracking info.
 
For example:
like this

 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
 
Shapes: round
2. Emitting color: Ultra Voilet(UV) LED
3. Dominant Wavelength:395-410nm
4. Lens colors: water clear
5. Life Span: 100,000 Hours
6. With RoHS & CE Approved
7. Chip: Taiwan
8. Luminous Flux: 1000-1200MCD
9. Beam angle: 20 degrees
10. Forward Voltage: 3.2-3.8V
11.Forward Current: 20mA

Description:
Model: Logic Analyzer Logic 24 m 8CH Host Registration
Length: 8-channel logic analyzer screen
Input voltage DC 7-14 V.
Output voltage: DC 5~5.8 V (adjustable)
Conversion efficiency: 98%
 
Package list:
Logic Logic Analyzer 24 m 8CH Host
USB cable (different colors)
DuPont Cable
 
Characteristic:
1. The logical channel sampling rate is up to 24 m/s. The general application is about 10 meters, which is enough for various purposes.
2. Logic input 8 can be collected. Analyze the signal and sample it as I2C, UART.
3. Logic can sample up to 1 billion, making capture even the most elusive event.

Descriptions:
The DAC Module provides a super affordable high-quality DAC for the Raspberry Pi.
Since it's digital audio, it sounds really good, much better than the onboard analog audio. The stereo jack comes soldered onto the board already.
Features:
Line out stereo jack
pHAT format board
Uses the PCM5102A DAC to work with the Raspberry Pi I2S interface
Specifications:
Type:I2S DAC Decoder
Model: PCM5102
Applications:
A / V Receiver
DVD, BD player
HDTV receiver
Applications Require 2VRMS audio output

Before use, before debugging, the default output is about 9V. Input voltage 4.5-8V The output voltage can be continuously adjusted 4.3-27V (4.3V or more, 27V or less, any voltage can be output, you can adjust the voltage counterclockwise) Charging voltage 4.2V Charging current is 1A Discharge current 2A output current to calculate Output reference maximum current 5V 1.4A , 9V 0.8A, 12V 0.6A Static current is about 0.5 mA Overshoot protection Overdischarge protection None (it can be said that there is 2V cut-off boost, but there is still 2V without blocking the output) Cut-off boost 2V, depending on the situation, whether to add a protection board For example, VIN termination 5V solar panel BAT terminal can output 4.2V to 3.7V 18650 battery charging OUT terminal can output an adjustable voltage How much you need to adjust Can be used for multimeters, modified lithium battery charging