Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO R4 WiFi microcontroller, various sensors, an LCD panel, an LED, a buzzer, and resistors. The circuit is designed to interface multiple sensors and output devices with the Arduino, allowing for data collection and display.

Component List

Arduino UNO R4 WiFi

• Description: A microcontroller board based on the ATmega328P, featuring built-in WiFi capabilities.
• Pins: OFF, GND, VRTC, IIC0_SCL, IIC0_SDA, 3V3, GPIO 41, GPIO 0, GPIO 42, GPIO 43, GPIO 44, BOOT, IOREF, RESET, 5V, VIN, A0, A1, A2, A3, A4, A5, RSPCKA, CIPO, COPI, D0/RX, D1/TX, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, AREF, SDA, SCL

20x4 I2C LCD Panel

• Description: A 20x4 character LCD display with I2C interface.
• Pins: GND, VCC, SDA, SCL

OPT101 Light Sensor

• Description: A monolithic photodiode and single-supply transimpedance amplifier.
• Pins: VCC, GND, OUT, -V, COM, 1M

mlx90614

• Description: An infrared thermometer for non-contact temperature measurements.
• Pins: SDA, SCL, GND, VIN

940nm Infrared LED Transmitter Module

• Description: An infrared LED module for transmitting IR signals.
• Pins: IN, 5V, GND

MAX30102

• Description: A pulse oximeter and heart-rate sensor module.
• Pins: VIN, SDA, SCL, GND, RD, IRD, INT

LED: Two Pin (green)

• Description: A standard green LED with two pins.
• Pins: cathode, anode

Resistor (1M Ohm)

• Description: A resistor with a resistance of 1M Ohm.
• Pins: pin1, pin2

Resistor (220 Ohm)

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

Buzzer Module

• Description: A module that produces sound when powered.
• Pins: GND, Vcc, I/O

Wiring Details

Arduino UNO R4 WiFi

• GND: Connected to GND of MAX30102, mlx90614, 20x4 I2C LCD Panel, OPT101 Light Sensor, 940nm Infrared LED Transmitter Module, and Buzzer Module.
• 3V3: Connected to VIN of MAX30102.
• 5V: Connected to VCC of 20x4 I2C LCD Panel, VCC of OPT101 Light Sensor, 5V of 940nm Infrared LED Transmitter Module, and VIN of mlx90614.
• A0: Connected to OUT and 1M of OPT101 Light Sensor.
• A4: Connected to SDA of 20x4 I2C LCD Panel.
• A5: Connected to SCL of 20x4 I2C LCD Panel.
• D2: Connected to IN of 940nm Infrared LED Transmitter Module.
• D3: Connected to anode of LED: Two Pin (green).
• D4: Connected to I/O of Buzzer Module.
• SDA: Connected to SDA of MAX30102 and mlx90614.
• SCL: Connected to SCL of MAX30102 and mlx90614.

20x4 I2C LCD Panel

• GND: Connected to GND of Arduino UNO R4 WiFi.
• VCC: Connected to 5V of Arduino UNO R4 WiFi.
• SDA: Connected to A4 of Arduino UNO R4 WiFi.
• SCL: Connected to A5 of Arduino UNO R4 WiFi.

OPT101 Light Sensor

• VCC: Connected to 5V of Arduino UNO R4 WiFi.
• GND: Connected to GND of Arduino UNO R4 WiFi.
• OUT: Connected to A0 of Arduino UNO R4 WiFi.
• COM: Connected to GND of Arduino UNO R4 WiFi.
• 1M: Connected to A0 of Arduino UNO R4 WiFi.

mlx90614

• SDA: Connected to SDA of Arduino UNO R4 WiFi.
• SCL: Connected to SCL of Arduino UNO R4 WiFi.
• GND: Connected to GND of Arduino UNO R4 WiFi.
• VIN: Connected to 5V of Arduino UNO R4 WiFi.

940nm Infrared LED Transmitter Module

• IN: Connected to D2 of Arduino UNO R4 WiFi.
• 5V: Connected to 5V of Arduino UNO R4 WiFi.
• GND: Connected to GND of Arduino UNO R4 WiFi.

MAX30102

• VIN: Connected to 3V3 of Arduino UNO R4 WiFi.
• SDA: Connected to SDA of Arduino UNO R4 WiFi.
• SCL: Connected to SCL of Arduino UNO R4 WiFi.
• GND: Connected to GND of Arduino UNO R4 WiFi.

LED: Two Pin (green)

• cathode: Connected to pin1 of 220 Ohm Resistor.
• anode: Connected to D3 of Arduino UNO R4 WiFi.

Resistor (1M Ohm)

• pin1: Connected to pin2 of 1M Ohm Resistor.
• pin2: Connected to OUT and 1M of OPT101 Light Sensor.

Resistor (220 Ohm)

• pin1: Connected to cathode of LED: Two Pin (green).
• pin2: Connected to GND of Arduino UNO R4 WiFi.

Buzzer Module

• GND: Connected to GND of Arduino UNO R4 WiFi.
• Vcc: Connected to VIN of Arduino UNO R4 WiFi.
• I/O: Connected to D4 of Arduino UNO R4 WiFi.

Documented Code

Arduino UNO R4 WiFi Code

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

}

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

}

This code is a basic template for the Arduino UNO R4 WiFi. The setup function is used to initialize any settings or configurations, and the loop function contains the main code that runs repeatedly.