Circuit Documentation

Summary

This document provides a detailed overview of a circuit consisting of an Arduino UNO, a Buck converter, and two 18650 Li-ion batteries. The circuit is designed to power the Arduino UNO using the Buck converter, which steps down the voltage from the batteries to a suitable level for the Arduino.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

18650 Li-ion Battery x 2

• Description: Two 18650 Li-ion batteries connected in series or parallel to provide power.
• Pins: +, -

Buck Converter

• Description: A DC-DC converter that steps down voltage from the input to a lower output voltage.
• Pins: IN+, IN-, OUT+, OUT-

Wiring Details

Arduino UNO

• 5V: Connected to OUT+ of the Buck converter
• GND: Connected to OUT- of the Buck converter

18650 Li-ion Battery x 2

• +: Connected to IN- of the Buck converter
• -: Connected to IN+ of the Buck converter

Buck Converter

• IN+: Connected to - of the 18650 Li-ion batteries
• IN-: Connected to + of the 18650 Li-ion batteries
• OUT+: Connected to 5V of the Arduino UNO
• OUT-: Connected to GND of the Arduino UNO

Documented Code

Arduino UNO Code

sketch.ino

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

}

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

}

documentation.txt

This documentation provides a comprehensive overview of the circuit, including the components used, their connections, and the code running on the Arduino UNO.