Circuit Documentation

Summary

This circuit involves an Arduino Nano microcontroller interfacing with an ESP8266 ESP-01 WiFi module, multiple DC motors, an MPU-6050 sensor, and several nMOS transistors and resistors. The circuit is powered by a LiPo battery. The Arduino Nano is programmed to control the various components.

Component List

1. Arduino Nano

   • Description: A small, complete, and breadboard-friendly board based on the ATmega328.
   • 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. ESP8266 ESP-01 WiFi Module

   • Description: A self-contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network.
   • Pins: TXD, CH_PD, RST, VCC, GND, GPIO_2, GPIO_0, RXD

3. DC Motor

   • Description: A motor that runs on direct current (DC) electricity.
   • Pins: pin 1, pin 2

4. LiPo Battery

   • Description: A rechargeable lithium polymer battery.
   • Pins: VCC, GND

5. nMOS Transistor (MOSFET)

   • Description: A type of transistor used for switching and amplifying electronic signals.
   • Pins: gate, drain, source

6. Resistor

   • Description: A passive electrical component that implements electrical resistance as a circuit element.
   • Pins: pin1, pin2
   • Properties: Resistance: 200 Ohms

7. MPU-6050

   • Description: A 6-axis motion tracking device that combines a 3-axis gyroscope and a 3-axis accelerometer.
   • Pins: VCC, GND, SCL, SDA, XDA, XCL, AD0, INT

Wiring Details

Arduino Nano

• D1/TX connected to ESP8266 ESP-01 WiFi Module RXD
• D0/RX connected to ESP8266 ESP-01 WiFi Module TXD
• D8 connected to Resistor pin1
• D9 connected to Resistor pin1 and nMOS Transistor (MOSFET) gate
• D10 connected to Resistor pin1
• D11/MOSI connected to nMOS Transistor (MOSFET) gate
• GND connected to ESP8266 ESP-01 WiFi Module GND, ESP8266 ESP-01 WiFi Module GPIO_0, nMOS Transistor (MOSFET) source, MPU-6050 GND, Resistor pin2, and LiPo Battery GND
• 5V connected to DC Motor pin 1
• A5 connected to MPU-6050 SCL
• A4 connected to MPU-6050 SDA
• 3V3 connected to ESP8266 ESP-01 WiFi Module CH_PD and ESP8266 ESP-01 WiFi Module VCC

ESP8266 ESP-01 WiFi Module

• RXD connected to Arduino Nano D1/TX
• TXD connected to Arduino Nano D0/RX
• GND connected to Arduino Nano GND, ESP8266 ESP-01 WiFi Module GPIO_0, nMOS Transistor (MOSFET) source, MPU-6050 GND, Resistor pin2, and LiPo Battery GND
• CH_PD connected to Arduino Nano 3V3
• VCC connected to Arduino Nano 3V3

DC Motor

• pin 1 connected to Arduino Nano 5V
• pin 2 connected to nMOS Transistor (MOSFET) drain

LiPo Battery

• VCC connected to DC Motor pin 1 and MPU-6050 VCC
• GND connected to Arduino Nano GND, ESP8266 ESP-01 WiFi Module GND, ESP8266 ESP-01 WiFi Module GPIO_0, nMOS Transistor (MOSFET) source, MPU-6050 GND, and Resistor pin2

nMOS Transistor (MOSFET)

• gate connected to Arduino Nano D9 and Resistor pin1
• drain connected to DC Motor pin 2
• source connected to Arduino Nano GND, ESP8266 ESP-01 WiFi Module GND, ESP8266 ESP-01 WiFi Module GPIO_0, MPU-6050 GND, Resistor pin2, and LiPo Battery GND

Resistor

• pin1 connected to Arduino Nano D8, Arduino Nano D9, and Arduino Nano D10
• pin2 connected to Arduino Nano GND, ESP8266 ESP-01 WiFi Module GND, ESP8266 ESP-01 WiFi Module GPIO_0, nMOS Transistor (MOSFET) source, MPU-6050 GND, and LiPo Battery GND

MPU-6050

• VCC connected to LiPo Battery VCC
• GND connected to Arduino Nano GND, ESP8266 ESP-01 WiFi Module GND, ESP8266 ESP-01 WiFi Module GPIO_0, nMOS Transistor (MOSFET) source, Resistor pin2, and LiPo Battery GND
• SCL connected to Arduino Nano A5
• SDA connected to Arduino Nano A4

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)