Circuit Documentation

Summary

This circuit integrates an Arduino UNO with an Adafruit Datalogger Shield, multiple pushbuttons, resistors, a 3-channel 5V relay module, ESP-8266 Controller, and terminal PCBs. The Arduino UNO serves as the central processing unit, interfacing with the ESP-8266 for WiFi capabilities and controlling the relay module. The pushbuttons are used for input, and the resistors are likely for pull-up or pull-down configurations. The terminal PCBs are used for connecting external devices or sensors.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P
• It has 14 digital input/output pins, 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button.

Adafruit Datalogger Shield v1

• A shield for Arduino that provides data logging capabilities.
• It includes an SD card interface and a real-time clock (RTC).

Pushbutton (6 instances)

• A simple switch mechanism for controlling some aspect of a machine or a process.
• Typically consists of four pins where two pins form a pair that is connected internally.

Resistor (6 instances, 200 Ohms each)

• A passive two-terminal electrical component that implements electrical resistance as a circuit element.
• Used for reducing current flow, adjusting signal levels, dividing voltages, bias active elements, and terminating transmission lines, among other uses.

ESP-8266 Controller

• A low-cost Wi-Fi microchip with full TCP/IP stack and microcontroller capability.
• Provides internet connectivity to the circuit.

Terminal PCB 2 Pin (4 instances)

• A simple two-pin terminal block for connecting wires to the circuit board.

3 Channel Relay 5V

• An electrically operated switch that allows you to turn on or off a circuit using voltage and/or current much higher than a microcontroller can handle.

Wiring Details

Arduino UNO

• 5V connected to the 3 Channel Relay 5V VCC
• GND connected to the 3 Channel Relay 5V GND
• Digital pins D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2 are connected to various components such as terminal PCBs, relay channels, ESP-8266 Controller, pushbuttons, and resistors.

Adafruit Datalogger Shield v1

• +5V connected to all pushbuttons Pin 3
• GND connected to all resistors pin1

Pushbuttons

• One side (Pin 2) of each pushbutton is connected to an Arduino digital pin and a resistor.
• The other side (Pin 3) of all pushbuttons is connected to the +5V on the Adafruit Datalogger Shield.

Resistors (200 Ohms each)

• One side (pin2) of each resistor is connected to an Arduino digital pin and a pushbutton.
• The other side (pin1) of all resistors is connected to the GND on the Adafruit Datalogger Shield.

ESP-8266 Controller

• Various GPIO pins (D0, D1, D2, D4, D5, D6) are connected to corresponding Arduino digital pins.

Terminal PCB 2 Pin

• Used to interface the Arduino digital pins with external devices or sensors.

3 Channel Relay 5V

• VCC and GND are powered by the Arduino 5V and GND.
• Relay channels CH1, CH2, CH3 are controlled by Arduino digital pins D11, D10, D9.

Documented Code

Arduino UNO 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 for the Arduino UNO is a template with empty setup and loop functions. This code needs to be filled in with the logic to control the relay module, read the pushbuttons, and communicate with the ESP-8266 Controller.

ESP-8266 Controller Code

No code was provided for the ESP-8266 Controller.

End of documentation.