Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano, an NRF24L01 wireless module, an Adafruit MAX9814 Electret Microphone Amplifier, a pushbutton, a red LED, a resistor, a ceramic capacitor, a 18650 battery in a holder, a TP4056 battery charger, an XL6009E1 boost converter, and a toggle switch. The circuit is designed to interface various components with the Arduino Nano for control and communication purposes.

Component List

Resistor

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2

Arduino Nano

• Description: A 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

NRF24L01

• Description: A wireless transceiver module.
• Pins: IRQ (not used), MOSI, CSN, VCC (3V), GND, CE, SCK, MISO

Adafruit MAX9814 Electret Microphone Amplifier

• Description: An amplifier for electret microphones.
• Pins: GND, VDD, GAIN, OUTPUT, A/R

LED: Two Pin (red)

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

Pushbutton

• Description: A pushbutton switch.
• Pins: Pin 3 (out), Pin 4 (out), Pin 1 (in), Pin 2 (in)

Ceramic Capacitor

• Description: A ceramic capacitor with a capacitance of 0.00001 Farads.
• Pins: pin0, pin1

18650 in holder

• Description: A 18650 battery in a holder.
• Pins: GND, VCC

TP4056

• Description: A lithium battery charger module.
• Pins: OUT-, B-, B+, OUT+, IN-, IN+

XL6009E1 Boost Converter

• Description: A boost converter module.
• Pins: IN+, IN-, OUT-, OUT+

Toggle Switch

• Description: A toggle switch.
• Pins: L1, COM, L2

Wiring Details

Resistor

• pin1 is connected to the cathode of the LED: Two Pin (red).
• pin2 is connected to D2 of the Arduino Nano.

Arduino Nano

• GND is connected to the anode of the LED: Two Pin (red).
• D2 is connected to pin2 of the Resistor.
• D7 is connected to CE of the NRF24L01.
• D8 is connected to CSN of the NRF24L01.
• D9 is connected to Pin 4 (out) of the Pushbutton.
• D11/MOSI is connected to MOSI of the NRF24L01.
• D12/MISO is connected to MISO of the NRF24L01.
• VIN is connected to L1 of the Toggle Switch.
• GND is connected to GND of the NRF24L01, GND of the Adafruit MAX9814 Electret Microphone Amplifier, OUT- of the XL6009E1 Boost Converter, and pin0 of the Ceramic Capacitor.
• 5V is connected to VDD and GAIN of the Adafruit MAX9814 Electret Microphone Amplifier, and Pin 2 (in) of the Pushbutton.
• A0 is connected to OUTPUT of the Adafruit MAX9814 Electret Microphone Amplifier.
• 3V3 is connected to VCC (3V) of the NRF24L01 and pin1 of the Ceramic Capacitor.
• D13/SCK is connected to SCK of the NRF24L01.

NRF24L01

• CE is connected to D7 of the Arduino Nano.
• CSN is connected to D8 of the Arduino Nano.
• MOSI is connected to D11/MOSI of the Arduino Nano.
• MISO is connected to D12/MISO of the Arduino Nano.
• GND is connected to GND of the Arduino Nano, GND of the Adafruit MAX9814 Electret Microphone Amplifier, OUT- of the XL6009E1 Boost Converter, and pin0 of the Ceramic Capacitor.
• VCC (3V) is connected to 3V3 of the Arduino Nano and pin1 of the Ceramic Capacitor.
• SCK is connected to D13/SCK of the Arduino Nano.

Adafruit MAX9814 Electret Microphone Amplifier

• GND is connected to GND of the Arduino Nano, GND of the NRF24L01, OUT- of the XL6009E1 Boost Converter, and pin0 of the Ceramic Capacitor.
• VDD is connected to 5V of the Arduino Nano.
• GAIN is connected to 5V of the Arduino Nano.
• OUTPUT is connected to A0 of the Arduino Nano.

LED: Two Pin (red)

• cathode is connected to pin1 of the Resistor.
• anode is connected to GND of the Arduino Nano.

Pushbutton

• Pin 4 (out) is connected to D9 of the Arduino Nano.
• Pin 2 (in) is connected to 5V of the Arduino Nano.

Ceramic Capacitor

• pin0 is connected to GND of the Arduino Nano, GND of the NRF24L01, GND of the Adafruit MAX9814 Electret Microphone Amplifier, and OUT- of the XL6009E1 Boost Converter.
• pin1 is connected to 3V3 of the Arduino Nano and VCC (3V) of the NRF24L01.

18650 in holder

• GND is connected to B- of the TP4056.
• VCC is connected to B+ of the TP4056.

TP4056

• B- is connected to GND of the 18650 in holder.
• B+ is connected to VCC of the 18650 in holder.
• OUT- is connected to IN- of the XL6009E1 Boost Converter.
• OUT+ is connected to IN+ of the XL6009E1 Boost Converter.

XL6009E1 Boost Converter

• IN- is connected to OUT- of the TP4056.
• IN+ is connected to OUT+ of the TP4056.
• OUT- is connected to GND of the Arduino Nano, GND of the NRF24L01, GND of the Adafruit MAX9814 Electret Microphone Amplifier, and pin0 of the Ceramic Capacitor.
• OUT+ is connected to COM of the Toggle Switch.

Toggle Switch

• L1 is connected to VIN of the Arduino Nano.
• COM is connected to OUT+ of the XL6009E1 Boost 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 a detailed component list, wiring details, and the code used for the Arduino Nano.