Huzal, kábel és vezeték

 
 CNC Shield Board:
 
1,Latest CNC Shield Version 3.0 for Arduino.
2,GRBL 0.9 compatible. (Open source firmware that runs on an UNO for Arduino that turns G-code commands into stepper signals)
3,PWM Spindle and direction pins
4,4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a  full 4th axis with custom firmware using pins D12 and D13)
5,2 x End stops for each axis (6 in total) 
6,Coolant enable 
7,Uses removable A4988 or DRV8825 compatible stepper drivers
8,Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to  1/32 micro-stepping ) 
9,Compact design.
10,Stepper Motors can be connected with 4 pin molex connectors or soldered in place. 
11,Runs on 12-36V DC. (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
12,Please note that this is an unassembled kit and Basic soldering skills are needed.
 
A4988 Stepper Motor Driver:
 
1,A4988 Stepper Motor Driver Board is a breakout board for Allegro's A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product.
Low RDS (On) Output
2,Automatic current decay mode  detection / selection
3,Mix with slow current decay modes
4,Synchronous rectification for low power dissipation
5,Internal UVLO
6,Crossover-current protection
7,3.3 and 5 V compatible logic supply
8,Thermal shutdown circuitry
9,Ground fault protection
10,Load short-circuit protection
11,Five selectable step modes: full,  1/2, 1/4, 1/8 and 1/16
 
 
UNO R3 Board for Arduino:
MCU: ATmega328
USB interface: ATmega16U2
Operating voltage: 5V
Digital I/O pins: 14 (including 6  with PWM capability)
Analog input pins: 6
I-I/O pin output current: 40mA max
3.3V output current: 150mA max
Flash memory: 32kB (0.5kB used by bootloader- included)
Static RAM (SRAM): 2kB
EEPROM: 1kB
Clock speed: 16MHz
 
 

 
 CNC Shield Board:
 
1,Latest CNC Shield Version 3.0 for Arduino.
2,GRBL 0.9 compatible. (Open source firmware that runs on an UNO for Arduino that turns G-code commands into stepper signals)
3,PWM Spindle and direction pins
4,4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a  full 4th axis with custom firmware using pins D12 and D13)
5,2 x End stops for each axis (6 in total) 
6,Coolant enable 
7,Uses removable A4988 or DRV8825 compatible stepper drivers
8,Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to  1/32 micro-stepping ) 
9,Compact design.
10,Stepper Motors can be connected with 4 pin molex connectors or soldered in place. 
11,Runs on 12-36V DC. (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
12,Please note that this is an unassembled kit and Basic soldering skills are needed.
 
A4988 Stepper Motor Driver:
 
1,A4988 Stepper Motor Driver Board is a breakout board for Allegro's A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product.
Low RDS (On) Output
2,Automatic current decay mode  detection / selection
3,Mix with slow current decay modes
4,Synchronous rectification for low power dissipation
5,Internal UVLO
6,Crossover-current protection
7,3.3 and 5 V compatible logic supply
8,Thermal shutdown circuitry
9,Ground fault protection
10,Load short-circuit protection
11,Five selectable step modes: full,  1/2, 1/4, 1/8 and 1/16
 
 
UNO R3 Board for Arduino:
MCU: ATmega328
USB interface: ATmega16U2
Operating voltage: 5V
Digital I/O pins: 14 (including 6  with PWM capability)
Analog input pins: 6
I-I/O pin output current: 40mA max
3.3V output current: 150mA max
Flash memory: 32kB (0.5kB used by bootloader- included)
Static RAM (SRAM): 2kB
EEPROM: 1kB
Clock speed: 16MHz
 
 

 
DFPlayer Mini is a small and cheap MP3 module, can be directly connects the speaker. Module with battery power supply, speaker, keys can be used alone, can also be via a serial port control, as the UNO or anything with a serial port of single chip microcomputer a module. Perfect integration module itself hard to decode MP3, WAV, WMA. Software support TF card drive at the same time, support the FAT16, FAT32 file system. Through a simple serial port can play the specified music instruction, and how to play music, and other functions, without tedious underlying operating, easy to use, stable and reliable.
 
Introduction
1, support the sampling rate (KHz) : 8/11.025/12/16/22 05/24/32/44.1/48
2, 24 bits DAC output dynamic range support: 90 db, SNR support: 85 db
3, fully support the FAT16, FAT32 file system, the largest support 32 gb TF card, support 32 gb usb flash drive, 64 m byte NORFLASH
4, a variety of optional control mode. IO control, serial port, AD button control mode
5, radio call waiting function, there is background music can be suspended. Advertising is back in the background continue to play
6, audio data according to the folder, maximum 100 folders, every folder can be allocated 255 tracks
Class 7, 30 volume is adjustable, 6 EQ is adjustable
 
Feature
1, vehicle-mounted navigation speech
2, highway transportation inspection, toll station voice prompt
3, railway station, bus station security check voice prompt
4, electric power, telecommunication, finance, business hall voice prompt
5, vehicle into and out of channel to verify voice prompt
6, * * voice prompt frontier inspection channels
7, multi-channel voice alarm or equipment operation guide voice
8, electric sightseeing car security speech notices
9, electrical and mechanical equipment failure alarm automatically
10, fire fighting voice alarm prompt
11, automatic broadcasting equipment, broadcast regularly

 
overcharge detection voltage :4.25±0.025V
overcharge Lift the voltage:4.15±0.05V
over discharge detection voltage :2.50±0.08V
over discharge Lift the voltage:3.00±0.1V
overcurrent current:20-30A
working current:15A(Natural cooling 10A, add heat sink 15A, the maximum instantaneous current 30A)
Remove protection condition automatic recovery, without activatio
 
 
Termination conditions:the release of protection condition then automatic recovery, without activation (optional charger to activate)
Main functions: the overcharge protection function, overdischarge protection, short-circuit protection, over current protection.
Working temperature: -40~ 85 degrees (high temperature environment and please strengthen radiating)
Connection: welding output
Module size: 50mm*22mm*4mm
Applications:
The protective board can be used as the nominal voltage of 14.4V, 14.8V, 16.8V four series of polymer lithium battery group, four series of 18650 lithium batteries as overcharge and over discharge, short circuit protection. Without the activation function in the power application for high instantaneous current,and in inverter application for avoid false triggering protection.So it will use more convenient.
Note:No part design on the back, can be attached to the heat sink to ensure high current work situation for a long time. Color of the PCB would be black or red randomly.

Applicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions) Product Size: 45*15*3.4mm (Standard), 48*20*3.4mm (Balancing) Charging voltage: 8.4V - 9.0V Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use) Continuous charge current (upper limit): 10A Standard Edition: Suitable for starting drills with currents up to 25A below 50W, or resistive loads below 168W. Balanced version: Suitable for starting currents below 25A and below 50W power drills, or resistive loads below 168W, with balanced charging function. Note 1: The successful start of power drill requires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary 18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above copper wire (cannot use nickel plate!!!) Note 2: Connect 0V, 4.2V, 8.4V according to the diagram strictly. When connecting the battery for the first time, it needs to be charged before output. Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected. For some customers with poor electronic foundation, please explain: Do not mix good batteries and bad batteries together! The capacity/internal resistance of 2 batteries should be as close as possible! (1 good battery 1 bad battery = 2 battery use effect).

Applicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions) Product Size: 45*15*3.4mm (Standard), 48*20*3.4mm (Balancing) Charging voltage: 8.4V - 9.0V Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use) Continuous charge current (upper limit): 10A Standard Edition: Suitable for starting drills with currents up to 25A below 50W, or resistive loads below 168W. Balanced version: Suitable for starting currents below 25A and below 50W power drills, or resistive loads below 168W, with balanced charging function. Note 1: The successful start of power drill requires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary 18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above copper wire (cannot use nickel plate!!!) Note 2: Connect 0V, 4.2V, 8.4V according to the diagram strictly. When connecting the battery for the first time, it needs to be charged before output. Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected. For some customers with poor electronic foundation, please explain: Do not mix good batteries and bad batteries together! The capacity/internal resistance of 2 batteries should be as close as possible! (1 good battery 1 bad battery = 2 battery use effect).

www.17track.net/en

 
 
 
 
100% Brand New.
Size: 5.2 x 2.65 x 1.4cm (L x W x H)
Module Properties: non-isolated constant current and voltage module
Rectification: non-synchronous rectification
Input voltage: 8V-36V
Output voltage: 1.25V-32V
Output current: adjustable maximum 5A
Conversion efficiency: 95% (the highest)
Switching frequency: 180KHz
Output ripple: 50mV (max) 20M bandwidth
Load Regulation: ± 0.5%
Voltage Regulation: ± 2.5%
Operating Temperature: -40 °c to 85 °c
Load Regulation: ± 0.5%
Voltage Regulation: ± 2.5%
Operating Temperature: -40 °c to 85 °c
 

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

This is a super mini Solar Lipo charger based on the CN3065 - a single lithium battery charge management chip.
This Solar charger provide you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargable LiPo battery. Set-up is easy as well, just plug your solar panel into one side of the Solar charger and your battery into the other and you are good to start charging!
The output of the Solar Charger is intended to charge a single polymer lithium ion cell. The load should be connected in parallel with the battery. By default, the Solar charge comes set to a maximum charge current of 500mA with a maximum recommended input of 6V (minimum 4.4V). It’s recommended that batteries not be charged at greater than their capacity rating.
Features:
Solar panel input: 4.4-6V
Max charge current: 500mA
Interface: 2-pin JST connectors(or PH2.0)
Short circuit protection
Continuous Charge Current Up to 500mA
Battery status indication ( Red : Charging , Green: Charged )
Support USB Charge (Micro-USB Connector)
Size:2cm x 4cm
 

Amplifier Chip:TPA3110
Output Power:15W x 2
Working Voltage: DC 8-18V
Working Current: 
Max:3A 
Static state:8mA
Efficiency:≥90%
SNR:100dB
Frequency Range:20Hz-20KHz
Size: 33 x 25 x 3.5mm
Speaker:4-8Ω
Net Weight:about 4g

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

5S 21V 4.2V Balance Function Protection Board 68mA 5S Li-ion Lipo Battery Lithium 18650 Batteries Balanced Module BMS PCB

Description:
Used in conjunction with the Duemilanove ProtoShield prototype expansion board, the circuit is used to build a prototype, can be directly soldered components on the board, you can also connect the above mini breadboard circuit. Bread board and circuit board via double-sided adhesive connections, sold bread board and the circuit board are separated.
 
ProtoShield prototype expansion board with two buttons and two LED circuit can be used directly, all of the pins and the power leads are very fit and build circuit prototyping with Ardui-no.

 
I2C/IIC
1. Size: 41.5 mm (length) * 19 mm (width) * 15.3 mm (high)
3. PCB color: black
4. The power supply voltage: 2.5-6 v
5. Support the I2C protocol
6. Take a backlight power control, can be set through the jumper cap whether backlight power supply connection. On jumper cap to connect the backlight power supply, unplug jumper cap to disconnect the backlight power supply
7. Contrast can be adjusted, rotate blue potentiometer, enhance the clockwise and counterclockwise. Potentiometer design on the front, convenient customer adjust freely anytime and anywhere
8. The module can cascade, maximum cascade eight. Through the short circuit A0 / A1 / A2 modify device address. The default address 0 x27

http://mh.nodebb.com/topic/44/mh-et-live-max30102-pulse-oximeter-and-heart-rate-sensor

Based on ESP-8266EX
For Arduino compatible, using For Arduino IDE to program
11 x I / O pins
1 x ADC pin (input range of 0-3.3V)
Support OTA wireless upload
Onboard 5V 1A Switching Power Supply (highest input voltage 24V)
After installing the hardware package,
the direct use For Arduino IDE development, the same operation For Arduino UNO
 
Product features:
1. Supporting the D1 MINI
2. The Ar-duino compatible, using Ar-duino IDE for programming
3.11 the XI/O pins
4.1 XADC pin (0-3.3 - V)
5. Support the OTA online
       

Based on ESP-8266EX
For Arduino compatible, using For Arduino IDE to program
11 x I / O pins
1 x ADC pin (input range of 0-3.3V)
Support OTA wireless upload
Onboard 5V 1A Switching Power Supply (highest input voltage 24V)
After installing the hardware package,
the direct use For Arduino IDE development, the same operation For Arduino UNO
 
Product features:
1. Supporting the D1 MINI
2. The Ar-duino compatible, using Ar-duino IDE for programming
3.11 the XI/O pins
4.1 XADC pin (0-3.3 - V)
5. Support the OTA online
       

TDA7297 amplifier board spare parts dc 12v grade 2.0 dual audio encoding 15w electronic diy kit

CJMCU FT232H USB to JTAG UART/FIFO IIC I2C Typical Applications Single chip USB to UART (RS232, RS422 or RS485) USB to FIFO USB to FT1 248 USB to JTAG USB to SPI USB to I2C USB to Bit-Bang USB to Fast Serial Interface USB to CPU target interface (as memory) CJMCU-FT232H is a single channel USB 2.0 Hi-Speed (480Mb/s) to UART/FIFO IC. It has the capability of being configured in a variety of industry standard serial or parallel interfaces. The FT232H has the following advanced features: Single channel USB to serial / parallel ports with a variety of configurations. Entire USB protocol handled on the chip. No USB specific firmware programming required. USB 2.0 Hi-Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible. Multi-Protocol Synchronous Serial Engine (MPSSE) to simplify synchronous serial protocol (USB to JTAG, I2C, SPI (MASTER) or bit-bang) design. UART transfer data rate up to 12Mbaud. (RS232 Data Rate limited by external level shifter). USB to asynchronous 245 FIFO mode for transfer data rate up to 8 Mbyte/Sec. USB to synchronous 245 parallel FIFO mode for transfers upto 40 Mbytes/Sec Supports a proprietary half duplex FT1248 interface with a configurable width, bi-directional data bus (1, 2, 4 or 8 bits wide). CPU-style FIFO interface mode simplifies CPU interface design. Fast serial interface option. FTDI's royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases. Adjustable receive buffer timeout.

 
Features and parameters introduced
The power supply is isolated industrial grade module power supply, with temperature protection, overcurrent protection and short circuit protection, high and low voltage isolation, AC85 ~ 265V wide voltage input, 431 precision DC5V output, small size, stable performance, cost-effective
Input voltage AC 85 ~ 265v 50 / 60HZ
Output voltage DC5V (± 0.2V)
Output current 700mA
Power 3.5W
Use the environment
physical dimension
Volume: LWH 3 * 2 * 1.8 (cm)
Installation method
A, can be installed in the input and output pins directly on the PCB
B, glue fixed

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

[Description]
 
1, RFID-RC522 module one;
2, the standard S50 blank card one;
3, S50 shaped cards one (as shown keychain shape);
4, vertical, curved row of pins each one;
Note: The relevant technical details and the development of routines, etc. Want to contact customer service request, please buy download address.
Mainly includes the following:
A, supporting reference materials;
B, mainstream processors (including MSP430F149) RC522 module for this application C program;
RC522 chip [Introduction]
  MF RC522 is applied to 13.56MHz contactless communication highly integrated chip card reader, is NXP for the "Three Tables" application launch of a low-voltage, low-cost, small size and non-contact card reader chip, smart instrumentation and portable handheld devices developed better choice. MF RC522 using advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contactless communication methods and protocols. Support 14443A compatible transponder signals. The digital part handles ISO14443A framing and error detection. In addition, support fast CRYPTO1 encryption algorithms, terminology validation MIFARE products. MFRC522 supports MIFARE Series higher speed non-contact communication, two-way data transfer rates up to 424kbit / s. As a highly integrated 13.56MHz card reader new family of chips, MF RC522 MF RC500 and MF RC530 and there are many similarities, but also have many features and differences. It is between the host communication using SPI mode, helps to reduce connection, reduce PCB board size and cost.
[Introduction] RFID module
    MF522-AN module adopts Philips MFRC522 original reader circuit chip design, easy to use, low cost, suitable for equipment development, development of advanced applications such reader users, the need for RF card terminal design / production of the user. This module can be loaded directly into a variety of readers molds. Module uses voltage of 3.3V, through the SPI interface simple few lines can be directly connected to the user any CPU board communication module can guarantee stable and reliable work, reader distance;
Electrical parameters [Introduction]
Current :13-26mA / DC 3.3V
Idle Current :10-13mA / DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating Frequency: 13.56MHz
Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire
Product Physical Characteristics: Dimensions: 40mm × 60mm
Environmental Operating temperature: -20-80 degrees Celsius
Environment Storage temperature: -40-85 degrees Celsius
Relative Humidity: 5% -95%
[Module Interface SPI Parameters
Data Transfer Rate: Max. 10Mbit/s

Features: Electric Socket Wall AC Power Outlet Voltage Detector Sensor Tester Pen 90-1000V The next generation AC non-contact voltage testers are easy to use — just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there is voltage present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home.
A perfect tool kit for home and electric industry uses Ideal design for testing power cables, circuit breakers, wall sockets, junction boxes, fuses, etc Just press the button, white LED light can be always on when there is absence of voltage "Beep" sound and red flashing LED would indicate the presence of voltage Totally insulated, no exposed metal or conductive parts Long life and low power consumption Compact, safety, & easy to carry Specifications:
Frequency Range: 50 to 500 Hz
Test Voltage Range: 90-1000V AC
Safety Rating : CAT II 1000v Powered By: 2 x AAA Batteries (Not included)
Material: ABS Plastic Item
Size: 152*23*15mm
 

MAX7219 digital display control module
 
MAX7219 is an integrated serial input / output common-cathode display driver, which connects the microprocessor 7-segment digital LED display with 8 digits, you can connect a bar graph display or 64 independent LED. On which includes a B-type BCD encoder chip, multi-channel scanning loop, segment word driver, but also an 8 x 8 static RAM for storing each data. Only one external register is used to set the segment current for each LED.
 
A convenient four-wire serial interface can connect all the general-purpose microprocessor. Each data can be addressed in the update does not need to rewrite all of the display. MAX7219 also allows users to select each data coding or non-coding.
The entire device contains a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display 1-8 bit data, there is a LED light all the detection mode.
 
Only three IO ports to drive eight digital tube! Digital flicker-free display! Support cascade!
 
PCB plate fixed to the four corners of copper studs, which can effectively prevent a short circuit accident occurs!
 
Digital tube 0.36 inches four one common cathode LED
 
This module is compatible with 5V / 3.3V microcontroller (51 / AVR / STM32 .......)
 
Wiring instructions (in program provides an example, you can access any IO ports, you can modify the port defined in the program):
 
VCC → 5V
 
GND → GND
 
DIN → P00
 
CS → P01
 
CLK → P02
 
NOTES:
 
1.VCC and GND Do not reversed, it would burn chip
 
2.51 MCU P0 port need pull-up resistor, if your device does not have pull-up resistor can be connected to other ports data lines
 
Invoice:
 
1.MAX7219 digital display module 1
 
2. Straight pin 5P
 
3. bent pin 5P

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
 
Features:
- High quality, small sized, easy and convenient to carry
- It can measure current and voltage of the power supply equipment with USB port
- The voltage and current will be displayed circularly
- Plug and play, no extra power supply needed.
Workable range: U= 3.5 - 7.0V, A= 0 - 3A
Resolution: Voltage 10mV, current 1mA
Error Range: Voltage
Full-scale Voltage Drop: 200mV
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
 
Workable Temperature: 0 - 60C
Color: Blue or White
Product Dimension(L x W x H): 52 x 34 x 15mm
Product Weight: 17g
Approved: CE / FCC

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 )
 

Size: 46 mmx23mmx10mm / 1.81 \ "x0.91 \" x0.39 \ "(inch) (approx)
 
The Features:
1. The Fixed turn the lamp current to 0.1 times the value of the constant current (at the when 2 identify been the 'is full);
2. Increased input reverse polarity for protection, diode;
3. Using dedicated reference for IC, and high - precision from the resistor, so that the constant current is more stable, (20 degrees to 100 degrees, the constant current 1 a, when the temperature drift of less than 1% ).
 
Particularly suitable for the LED driver
* High - power LED constant current drive
* Lithium 'charger (o ferroelectric)
* 4 v, 6 v, 12 v, 14 v, 24 v 'charger
* Nickel cadmium, Nickel metal hydride 'pack charger
For * Solar panels and wind turbines
 
Specifications:
* the Module Properties: non - isolated constant current and voltage of the Module
* Rectification: non - synchronous Rectification
* Input voltage: 7 v - 35 v
* the Output voltage: 1.25 V - 30 V
* the Output current: adjustable maximum 3 a
* Conversion efficiency: 92% (the highest)
* Switching frequency, 150 KHZ
* the Output ripple: 50 mv (Max) 20 m bandwidth
* the Load Regulation: plus or minus 0.5%
* Voltage Regulation: plus or minus 2.5%
* Operating Temperature: - 40 ° to 85 °
 
'the use:
* Make sure of the voltage and current of the 'you need to charge
* Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage
* Potentiometer Adjustment Direction: Clockwise (happens), counterclockwise (decrease)
* Use the multimeter in 10 a current scale to measure the output short - circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value
* The charge current of transfer lamp is The default 0.1 times of The charging current (constant current value)
* Connected to the 'and try to charging (for previous five steps, the module input terminal is Connected to the power source, the output load is NOT Connected to batteries).
 
LED Constant Current Driver Use:
* Make sure operating current and Max operating Voltage of the LED you need to drive.
* Adjust the constant voltage potentiometer to make sure the output voltage is up to the LED Max operating voltage.
* Use the multimeter in 10 a current scale to measure the output short - circuit current, and adjust the current potentiometer. To make sure the output current to the expected LED operating current.
* Join the LED test (For the above three steps, the module input terminal is connected to the power source, the output load is NOT connected to the LED).
 
The scope of application:
Charging for lithium ion batteries: the when the lithium ion 'voltage is low. If use the constant voltage Charging directly. Due to pressure is too large, leading to the' damage. So from the beginning to use the constant current Charging. When Charging the to a certain, automatic switch back to the constant voltage Charging.
 
Charging curve as to: red is current, blue is voltage.
 

1.Parameter characteristics
 
Power Supply 3.7-5V
SNR 90dB
THD N -70dB
Crosstalk -86dB
DNR 91dB
Support Profile A2DP/AVCTP/AVDTP/AVRCP/HFP
LOS >15m
 
 
2.Interface details
 
USB powered Universal Micro USB 5V power supply
3.7-5V Supply Pad External 3.7-5V lithium battery power conversion
LED indicator Bluetooth mode long blue light
3.5mm stereo audio interface Standard 3.5mm interface, output stereo sound source, plug in headphones, connect amplifiers and other devices
 
 
Instructions:
 
 
After the power is turned on, the blue indicator lights up and enters the Bluetooth mode; the English “The bluetooth device is ready to pair” is displayed, indicating that the Bluetooth mode is entered and waiting for pairing; the “XY_BT” searched by the mobile phone Bluetooth is the device name of the decoding board. , Click on the connection, the decoder board prompts "The bluetooth device is connected successfully", indicating that the decoder board and the mobile phone are connected successfully, you can play music. As shown below

The balance board is suitable for  the li-ion battery pack BMS WHICH without  balance function,so as to  equalizing charge lithium battery charge function, make the battery pack each series charge at the same time.
 
Note:The balancing board must need BMS to use together,and the BMS is without balancing function
 
Parameter:
Balance Voltage for each single cell: 4.2V
Balance current for each single cell :66mA
Size: L25mm*W22mm
Balancer is just a Auxiliary function, The balancing means when the battery charging,each series battery need with the same voltage.when ONE cell voltage get 4.2V ,the other cells not, the first cell voltage will discharge to wait the other cells rising to the same level.
 
Note:
battery internal resistance differences within 5 milliohm, voltage within 0.03 V voltage, capacity vary within 50 ma
 
Cut-off  Voltage is according to the BMS setting.
 
Note:the balancer starts balancing when the one cell get 4.2V, The Cut-off  Voltage is according to the BMS setting,but the bms cut-off voltage needs more than 4.25V which is much better.
 
4S  Cnnection instruction:
 
B4    Connect battery positive;
B3    Connect the point between battery 1 and battery 2;
B2    Connect the point between battery 2 and battery 3;
B1    Connect the point between battery 3 and battery 4
B-     Connect battery negative;

For Nano IO Expansion Shield is specifically designed to facilitate an easy connection between FOR Arduino Nano and many other devices. In essence, it expands the Nano controller to link those devices in a simple and trouble free manner. It is a perfect companion of Nano breadboard and compatible with both Nano v2.x and v3.x.
This expansion shield provides:
14 I/O Pin (servo type with GND, power and signal)
8 analog Pin with power output and GND
6 PWM Pin
1 Servo power input
5 I2C expansion Pin
AREF output
3.3V output

3 series 12V 18650 Lithium battery protection board 11.1V 12.6V prevent overcharge 10A overcurrent protection hot

5V Omron solid state relay 240V 2A, output with resistive fuse 240V 2A 
Size: 24*32*21mm/0.94*1.25*0.82” 
Input Power: 5V DC (160mA) 
Input control signal voltage: 
(0-2.5V state low relay OFF) 
(3-5V state high relay ON)
Module interface: 
Input section: 
DC : positive power supply (by relay voltage power supply) 
DC-: connect power negative 
CH: relay module signal to trigger the end (high level trigger effective)
Voltage version      5V 
Static current         0mA 
Working current    12.5mA 
Trigger voltage      3.3-5V 
Trigger current       2mA

1, the current sensor chip ACS712ELC-050; ACS712ELC - 20; ACS712ELC - 30;
2, pin 5 v power supply, the onboard power light;
3 30A plus or minus current can be measured, module, the corresponding analog output 100 mv/A;
4, no current through testing, the output voltage is VCC / 2;
5, the size of the PCB board: 31 (mm) x13 (mm);

1, the current sensor chip ACS712ELC-050; ACS712ELC - 20; ACS712ELC - 30;
2, pin 5 v power supply, the onboard power light;
3 30A plus or minus current can be measured, module, the corresponding analog output 100 mv/A;
4, no current through testing, the output voltage is VCC / 2;
5, the size of the PCB board: 31 (mm) x13 (mm);

1, the current sensor chip ACS712ELC-050; ACS712ELC - 20; ACS712ELC - 30;
2, pin 5 v power supply, the onboard power light;
3 30A plus or minus current can be measured, module, the corresponding analog output 100 mv/A;
4, no current through testing, the output voltage is VCC / 2;
5, the size of the PCB board: 31 (mm) x13 (mm);

Properties of the lithium battery protection board:
Model: HX - 2S - JH20 overcharging range: 4.25-4.35 v plus or minus 0.05 v
Size: 46.7 * 23 * 3.15mm over voltage range: 2.5-3.0 v plus or minus 0.05 v
Maximum working current: 10 a working temperature: - 40 - 50 °
Maximum instantaneous current: 20 a storage conditions: - 40 - 80 °
Static current: less than 10uA effective life: more than 50,000 hours
Resistance: less than 300 m Ω short circuit protection: to protect and restore must charge
Charging voltage: 8.4 v-9v
The protection board size and device description;
The protective plate size is 46.7 * 23 * 3.15mm
Welding point description:
· B battery anode;
 
· B - connect battery negative terminal;
 
· MMB connect battery 1 to battery 2;
 
· P charging/discharge correct poles (charging end/discharge end sharing);
 
· P - charging/discharge terminal negative terminal (charging end/discharge end sharing).

Features: 
The onboard two set power supply interface VCC5 5V power supply, VCC4 interface, 3.5--4.5V power supply, optional power on self starting (default) and control start.
The onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset.
The size of the module is 49*50, all the new and original device.
The computer can give early computer debugging USB module power supply, a very large amount of data under the condition of the recommended current more than 1A. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. Support 2, mobile phone 3,4G card.
The serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support
3.3 and 5V single chip microcomputer.
The SIM card circuit to increase the SMF05C ESD chip.
Antenna circuit: guarantee short and straight, so as to ensure the signal strength.
PCB display screen printing mark: each interface, convenient development two times, the SIM900/A hardware is completely follow the design when the design manual.
Two power supply interface: VCC5, 5V DC above 1A. Computer 5V power supply can be early computer USB. DC long data circuit over larger recommended 5V1A. VCC4, 3.5--4.5V power supply, ibid., suitable for lithium battery.
Control pin all leads.
A TTL level, compatible with 3.3V and 5V.
The two antenna interface, the default SMA straight head, connector for IPXmini antenna.
One way of speech interface, the way Mike interface.
The control interface of each pin description:
GND - GND
SIMR SIM900A RXD, TTL level, can not be directly connected to the 232 level
SIMT SIM900A TXD, TTL level, can not be directly connected to the 232 level
RST - SIM900A reset, active low
VCC_MCU when the SIM900A module and 5V TTL level communication, this pin is connected to DC 5V; when the level of communication of SIM900A and 3.3V TTL, this pin is connected to DC 3.3V.
VCC5----DC 5V input.
VCC4------DC3.5--4.5 input
Onboard Resources:
Serial port circuit(with protection)
Antenna interface circuit(SMA bend female port)
SIM card circuit(flip SIM slot)
4*3.5 fixture hole 4pcs
SIM900A serial port output terminal
Specifications:
Size:49mm x 47mm
Net Weight:28g
Weight: 38g 
Package Included:
1 x SIM900A V4.0 kit
1x Power Cable
1x Antenna