Circuit Documentation

Summary

This circuit involves an Arduino Nano microcontroller interfacing with various input and output components, including an analog joystick, pushbutton, resistors, LEDs, a rotary potentiometer, an accelerometer, a Bluetooth module, and a 9V battery. The circuit is designed to read analog and digital inputs, control LEDs, and communicate wirelessly via Bluetooth.

Component List

1. Adafruit Analog 2-Axis Joystick

   • Pins: VCC, XOUT, YOUT, SWITCH, GND
   • Description: An analog joystick providing two-axis control.

2. Pushbutton

   • Pins: Pin 1, Pin 2, Pin 3, Pin 4
   • Description: A simple pushbutton for digital input.

3. Resistor (1000 Ohms)

   • Pins: pin1, pin2
   • Description: A resistor with a resistance of 1000 Ohms.

4. Resistor (220 Ohms)

   • Pins: pin1, pin2
   • Description: A resistor with a resistance of 220 Ohms.

5. Resistor (2000 Ohms)

   • Pins: pin1, pin2
   • Description: A resistor with a resistance of 2000 Ohms.

6. LED: Two Pin (red)

   • Pins: cathode, anode
   • Description: A red LED.

7. Arduino Nano

   • 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
   • Description: A microcontroller board based on the ATmega328.

8. Rotary Potentiometer (10k Ohms)

   • Pins: leg1, wiper, leg2
   • Description: A rotary potentiometer with a resistance of 10k Ohms.

9. Adafruit ADXL345

   • Pins: VIN, 3.3V, GND, CS, INT1, INT2, SDO/ADDR, SDA/SDIO, SCL
   • Description: A 3-axis accelerometer.

10. 9V Battery

    • Pins: -, +
    • Description: A 9V battery for power supply.

11. HC-05 Bluetooth Module

    • Pins: Key, VCC, GND, TXD, RXD, State
    • Description: A Bluetooth module for wireless communication.

Wiring Details

Adafruit Analog 2-Axis Joystick

• VCC connected to Arduino Nano 3V3
• XOUT connected to Arduino Nano A0
• YOUT connected to Arduino Nano A1
• GND connected to Arduino Nano GND

Pushbutton

• Pin 1 connected to Arduino Nano D2 and Resistor (1000 Ohms) pin1
• Pin 4 connected to Arduino Nano 3V3

Resistor (1000 Ohms)

• pin1 connected to Pushbutton Pin 1
• pin2 connected to Arduino Nano GND

Resistor (220 Ohms)

• pin1 connected to LED anode
• pin2 connected to Arduino Nano D4, D5, D6

Resistor (2000 Ohms)

• pin1 connected to Resistor (1000 Ohms) pin2
• pin2 connected to HC-05 Bluetooth Module RXD

LED: Two Pin (red)

• cathode connected to Arduino Nano GND
• anode connected to Resistor (220 Ohms) pin1

Arduino Nano

• 3V3 connected to Adafruit Analog 2-Axis Joystick VCC, Pushbutton Pin 4, Adafruit ADXL345 3.3V, Rotary Potentiometer leg1, HC-05 Bluetooth Module VCC
• A0 connected to Adafruit Analog 2-Axis Joystick XOUT
• A1 connected to Adafruit Analog 2-Axis Joystick YOUT
• A2 connected to Rotary Potentiometer wiper
• A3 connected to Rotary Potentiometer wiper
• A4 connected to Adafruit ADXL345 SDA/SDIO
• A5 connected to Adafruit ADXL345 SCL
• D0/RX connected to HC-05 Bluetooth Module TXD
• D1/TX connected to Resistor (1000 Ohms) pin1
• D2 connected to Pushbutton Pin 1
• D3 connected to Resistor (220 Ohms) pin2
• D4 connected to Resistor (220 Ohms) pin2
• D5 connected to Resistor (220 Ohms) pin2
• D6 connected to Resistor (220 Ohms) pin2
• GND connected to Adafruit Analog 2-Axis Joystick GND, Resistor (1000 Ohms) pin2, 9V Battery -, Adafruit ADXL345 GND, Rotary Potentiometer leg2, LED cathode, HC-05 Bluetooth Module GND
• VIN connected to 9V Battery +

Rotary Potentiometer (10k Ohms)

• leg1 connected to Arduino Nano 3V3
• wiper connected to Arduino Nano A2, A3
• leg2 connected to Arduino Nano GND

Adafruit ADXL345

• 3.3V connected to Arduino Nano 3V3
• GND connected to Arduino Nano GND
• SDA/SDIO connected to Arduino Nano A4
• SCL connected to Arduino Nano A5

9V Battery

• + connected to Arduino Nano VIN
• - connected to Arduino Nano GND

HC-05 Bluetooth Module

• VCC connected to Arduino Nano 3V3
• GND connected to Arduino Nano GND
• TXD connected to Arduino Nano D0/RX
• RXD connected to Resistor (2000 Ohms) pin2

Documented Code

Arduino Nano (Instance 1)

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

}

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

}

Arduino Nano (Instance 2)

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

}

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

}

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