Circuit Documentation

Summary

This circuit is designed to control a 12V white LED strip using an Arduino Nano, an IR receiver, and a 12V single-channel relay. The circuit is powered by a 18650 Li-ion battery and a 5V battery connected to a USB power source. The MT3608 DC-DC converter is used to step up the voltage from the 18650 Li-ion battery to power the LED strip.

Component List

1. Arduino Nano

   • Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
   • Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

2. MT3608

   • Description: A DC-DC step-up converter module.
   • Pins: VOUT+, VIN+, VOUT-, VIN-

3. 12V Single Channel Relay

   • Description: A relay module that allows a low-power microcontroller to control a high-power device.
   • Pins: NC, COM, NO, IN, GND, VCC

4. IR Receiver

   • Description: A device that receives infrared signals from a remote control.
   • Pins: DATA, VCC, GND

5. 12V White LED Strip

   • Description: A strip of white LEDs that operates at 12V.
   • Pins: +12V, GND

6. 18650 Li-ion Battery

   • Description: A rechargeable lithium-ion battery.
   • Pins: +, -

7. 5V Battery

   • Description: A battery that provides a 5V output.
   • Pins: positive, negative

8. USB Power

   • Description: A power source that provides power through a USB connection.
   • Pins: +, -

Wiring Details

Arduino Nano

• GND connected to GND of IR Receiver
• D2 connected to DATA of IR Receiver
• D10 connected to IN of 12V Single Channel Relay
• GND connected to GND of 12V Single Channel Relay
• 5V connected to VCC of 12V Single Channel Relay
• 3V3 connected to VCC of IR Receiver

MT3608

• VOUT+ connected to +12V of 12V White LED Strip
• VIN+ connected to + of 18650 Li-ion Battery
• VOUT- connected to NC of 12V Single Channel Relay
• VIN- connected to - of 18650 Li-ion Battery

12V Single Channel Relay

• COM connected to GND of 12V White LED Strip

5V Battery

• positive connected to + of USB Power
• negative connected to - of USB Power

Documented Code

Arduino Nano Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Documentation (documentation.txt)

This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the microcontroller.