Circuit Documentation

Summary

This circuit is designed to interface an Arduino Nano with an ADXXL335 accelerometer and an nRF24L01 wireless communication module. The circuit is powered by a 9V battery, which is controlled by a toggle switch to turn the power supply to the Arduino on and off. The Arduino Nano serves as the central processing unit, reading data from the ADXXL335 accelerometer and communicating wirelessly via the nRF24L01 module.

Component List

9V Battery

• Description: Provides the power supply for the circuit.
• Pins: - (negative), + (positive)

Toggle Switch

• Description: Controls the power supply to the Arduino Nano.
• Pins: L1, COM (common), L2

Arduino Nano

• Description: Microcontroller 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

ADXXL335 Accelerometer

• Description: A small, thin, low power, complete 3-axis accelerometer.
• Pins: VCC, X-OUT, Y-OUT, Z-OUT, GND

nRF24L01 Wireless Module

• Description: A 2.4GHz ISM band transceiver.
• Pins: GND, VCC, CE, CSN, SCK, MOSI, MISO, IRQ

Wiring Details

9V Battery

• - connected to nRF24L01 GND
• + connected to Toggle Switch COM

Toggle Switch

• COM connected to 9V Battery +
• L2 connected to Arduino Nano VIN

Arduino Nano

• VIN connected to Toggle Switch L2
• GND connected to ADXXL335 GND
• 5V connected to ADXXL335 VCC
• A1 connected to ADXXL335 Y-OUT
• A0 connected to ADXXL335 X-OUT
• 3V3 connected to nRF24L01 VCC
• D8 connected to nRF24L01 CE
• D10 connected to nRF24L01 CSN
• D11/MOSI connected to nRF24L01 MOSI
• D12/MISO connected to nRF24L01 MISO
• D13/SCK connected to nRF24L01 SCK

ADXXL335 Accelerometer

• GND connected to Arduino Nano GND
• VCC connected to Arduino Nano 5V
• Y-OUT connected to Arduino Nano A1
• X-OUT connected to Arduino Nano A0

nRF24L01 Wireless Module

• GND connected to 9V Battery -
• VCC connected to Arduino Nano 3V3
• CE connected to Arduino Nano D8
• CSN connected to Arduino Nano D10
• MOSI connected to Arduino Nano D11/MOSI
• MISO connected to Arduino Nano D12/MISO
• SCK connected to Arduino Nano D13/SCK

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:

}

Note: The provided code is a template and does not include specific functionality. It should be populated with the setup and loop code required to initialize the components and handle the data acquisition and wireless communication.