Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Adafruit QT Py RP2040 microcontroller, various sensors, a display, a buzzer, a LiPo battery, and a toggle switch. The circuit is designed to interface with multiple I2C devices and includes a buzzer for audio feedback. The power is supplied by a 3.7V LiPo battery, and a toggle switch is used to control the power flow.

Component List

1. Adafruit QT Py RP2040

   • Description: A compact microcontroller board based on the RP2040 chip.
   • Pins: A0, A1, A2, A3, SDA, SCL, TX, RX, SCK, MISO, MOSI, +3V3, GND, +5V, SDA1, SCL1

2. Adafruit APDS9960 Proximity Sensor

   • Description: A sensor that provides proximity, ambient light, RGB, and gesture sensing.
   • Pins: VCC, 3.3V, GND, SCL, SDA, INT

3. OLED 128x64 I2C Monochrome Display GND-VDD

   • Description: A monochrome display with I2C interface.
   • Pins: GND, VDD, SCK, SDA

4. 3.7v LiPo

   • Description: A 3.7V Lithium Polymer battery.
   • Pins: +Ve, GND

5. Toggle Switch

   • Description: A switch to control the power flow.
   • Pins: L1, COM, L2

6. Buzzer

   • Description: A simple buzzer for audio feedback.
   • Pins: PIN, GND

7. MPU6050 Accelerometer + Gyroscope (Wokwi Compatible)

   • Description: A sensor that provides accelerometer and gyroscope data.
   • Pins: INT, AD0, XCL, XDA, SDA, SCL, GND, VCC

Wiring Details

Adafruit QT Py RP2040

• A0: Connected to Buzzer PIN
• +5V: Connected to Toggle Switch COM
• GND: Connected to Buzzer GND, 3.7v LiPo GND, Adafruit APDS9960 Proximity Sensor GND, OLED 128x64 I2C Monochrome Display GND, MPU6050 Accelerometer + Gyroscope GND
• +3V3: Connected to Adafruit APDS9960 Proximity Sensor 3.3V, OLED 128x64 I2C Monochrome Display VDD, MPU6050 Accelerometer + Gyroscope VCC
• SDA: Connected to Adafruit APDS9960 Proximity Sensor SDA, OLED 128x64 I2C Monochrome Display SDA, MPU6050 Accelerometer + Gyroscope SDA
• SCL: Connected to Adafruit APDS9960 Proximity Sensor SCL, OLED 128x64 I2C Monochrome Display SCK, MPU6050 Accelerometer + Gyroscope SCL

Adafruit APDS9960 Proximity Sensor

• 3.3V: Connected to Adafruit QT Py RP2040 +3V3
• GND: Connected to Adafruit QT Py RP2040 GND
• SDA: Connected to Adafruit QT Py RP2040 SDA, OLED 128x64 I2C Monochrome Display SDA, MPU6050 Accelerometer + Gyroscope SDA
• SCL: Connected to Adafruit QT Py RP2040 SCL, OLED 128x64 I2C Monochrome Display SCK, MPU6050 Accelerometer + Gyroscope SCL

OLED 128x64 I2C Monochrome Display GND-VDD

• VDD: Connected to Adafruit QT Py RP2040 +3V3
• GND: Connected to Adafruit QT Py RP2040 GND
• SDA: Connected to Adafruit QT Py RP2040 SDA, Adafruit APDS9960 Proximity Sensor SDA, MPU6050 Accelerometer + Gyroscope SDA
• SCK: Connected to Adafruit QT Py RP2040 SCL, Adafruit APDS9960 Proximity Sensor SCL, MPU6050 Accelerometer + Gyroscope SCL

3.7v LiPo

• +Ve: Connected to Toggle Switch L1
• GND: Connected to Adafruit QT Py RP2040 GND, Buzzer GND, Adafruit APDS9960 Proximity Sensor GND, OLED 128x64 I2C Monochrome Display GND, MPU6050 Accelerometer + Gyroscope GND

Toggle Switch

• COM: Connected to Adafruit QT Py RP2040 +5V
• L1: Connected to 3.7v LiPo +Ve

Buzzer

• PIN: Connected to Adafruit QT Py RP2040 A0
• GND: Connected to Adafruit QT Py RP2040 GND, 3.7v LiPo GND, Adafruit APDS9960 Proximity Sensor GND, OLED 128x64 I2C Monochrome Display GND, MPU6050 Accelerometer + Gyroscope GND

MPU6050 Accelerometer + Gyroscope (Wokwi Compatible)

• VCC: Connected to Adafruit QT Py RP2040 +3V3
• GND: Connected to Adafruit QT Py RP2040 GND
• SDA: Connected to Adafruit QT Py RP2040 SDA, Adafruit APDS9960 Proximity Sensor SDA, OLED 128x64 I2C Monochrome Display SDA
• SCL: Connected to Adafruit QT Py RP2040 SCL, Adafruit APDS9960 Proximity Sensor SCL, OLED 128x64 I2C Monochrome Display SCK

Code

No code is provided for this circuit.