Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano, a TP4056 battery charger, a step-up boost power converter, a Nokia 5110 LCD, multiple pushbuttons, a toggle switch, and two 18650 Li-ion batteries. The circuit is designed to interface various components with the Arduino Nano, providing power management and user interaction through the pushbuttons and display.

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. TP4056

   • Description: A linear charger module for single-cell lithium-ion batteries.
   • Pins: OUT-, B-, B+, OUT+, IN-, IN+

3. Step Up Boost Power Converter, Adjustable Voltage Regulator

   • Description: A power converter that steps up the input voltage to a higher, adjustable output voltage.
   • Pins: VOUT+, VOUT-, VIN+, VIN-

4. Toggle Switch

   • Description: A switch that can toggle between two states.
   • Pins: L1, COM, L2

5. Nokia 5110 LCD

   • Description: A basic graphic LCD screen for lots of applications.
   • Pins: RST, CE, DC, DIN, CLK, VCC, BL, GND

6. 18650 Li-ion Battery x 2

   • Description: Rechargeable lithium-ion batteries.
   • Pins: +, -

7. Pushbutton

   • Description: A simple pushbutton switch.
   • Pins: Pin 2, Pin 1, Pin 3, Pin 4

Wiring Details

Arduino Nano

• GND connected to GND of Nokia 5110 LCD
• D2 connected to Pin 1 of Pushbutton
• D3 connected to Pin 1 of Pushbutton
• D4 connected to Pin 1 of Pushbutton
• D5 connected to Pin 1 of Pushbutton
• D6 connected to DC of Nokia 5110 LCD
• D7 connected to CE of Nokia 5110 LCD
• D8 connected to RST of Nokia 5110 LCD
• D9 connected to Pin 1 of Pushbutton
• D10 connected to Pin 1 of Pushbutton
• D11/MOSI connected to DIN of Nokia 5110 LCD
• D12/MISO connected to Pin 1 of Pushbutton
• GND connected to Pin 2 of multiple Pushbuttons and VOUT- of Step Up Boost Power Converter
• 5V connected to VOUT+ of Step Up Boost Power Converter
• 3V3 connected to VCC and BL of Nokia 5110 LCD
• D13/SCK connected to CLK of Nokia 5110 LCD

TP4056

• OUT- connected to VIN- of Step Up Boost Power Converter
• B- connected to - of 18650 Li-ion Battery
• B+ connected to + of 18650 Li-ion Battery
• OUT+ connected to VIN+ of Step Up Boost Power Converter

Step Up Boost Power Converter, Adjustable Voltage Regulator

• VOUT+ connected to 5V of Arduino Nano
• VOUT- connected to GND of Arduino Nano and Pin 2 of multiple Pushbuttons
• VIN- connected to OUT- of TP4056
• VIN+ connected to OUT+ of TP4056

Nokia 5110 LCD

• GND connected to GND of Arduino Nano
• DC connected to D6 of Arduino Nano
• CE connected to D7 of Arduino Nano
• RST connected to D8 of Arduino Nano
• DIN connected to D11/MOSI of Arduino Nano
• VCC connected to 3V3 of Arduino Nano
• BL connected to 3V3 of Arduino Nano
• CLK connected to D13/SCK of Arduino Nano

Pushbuttons

• Pin 1 of Pushbutton connected to D2 of Arduino Nano
• Pin 1 of Pushbutton connected to D3 of Arduino Nano
• Pin 1 of Pushbutton connected to D4 of Arduino Nano
• Pin 1 of Pushbutton connected to D5 of Arduino Nano
• Pin 1 of Pushbutton connected to D9 of Arduino Nano
• Pin 1 of Pushbutton connected to D10 of Arduino Nano
• Pin 1 of Pushbutton connected to D12/MISO of Arduino Nano
• Pin 2 of multiple Pushbuttons connected to GND of Arduino Nano and VOUT- of Step Up Boost Power Converter

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:

}

Additional Documentation (documentation.txt)

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