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Arduino Mega 2560 and Adafruit PWM Servo Shield-Based Robotic Arm with RFID and LCD Display

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Circuit Documentation

Summary

This circuit involves an Arduino Mega 2560 microcontroller interfacing with various components including an Adafruit 16-Channel 12-bit PWM Servo Shield, multiple Servo motors, an LCD display, an RFID reader, a load cell, a joystick module, a speaker module, and an ESP32-C3-DevKitM-1. The circuit is designed to control servos, read RFID tags, display information on an LCD, measure weight using a load cell, and interact with a joystick and a speaker.

Component List

  1. Adafruit 16-Channel 12-bit PWM Servo Shield - I2C

    • Pins: PWRIN, GND, 5.0V, PWM0, PWM1, PWM2, PWM3, PWM4, PWM5, PWM6, PWM7, PWM8, PWM9, PWM10, PWM11, PWM12, PWM13, PWM14, PWM15, SCL, SDA, AREF, IOREF, RESET, 3V, 5V, VIN, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

  2. Servo

    • Pins: gnd, vcc, pulse

  3. Arduino Mega 2560

    • Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, D21/SCL, D20/SDA, D19/RX1, D18/TX1, D17 PWM/RX2, D16 PWM/TX2, D15/RX3, D14/TX3, D0 RX0, D1 TX0, D2 PWM, D3 PWM, D4 PWM, D5 PWM, D6 PWM, D7 PWM, D8 PWM, D9 PWM, D10 PWM, D11 PWM, D12 PWM, D13 PWM, AREF, SDA, SCL, D52, D50, D48, D46, D44, D42, D40, D38, D36, D34, D32, D30, D28, D26, D24, D22, D53, D51, D49, D47, D45, D43, D41, D39, D37, D35, D33, D31, D29, D27, D25, D23

  4. Lcd 20x4 i2c

    • Pins: GND, 5v, SCA, SCL

  5. Load Cell - Red/white/black/green

    • Pins: E+, A-, E-, A+

  6. Arcade Button (blue)

    • Pins: com, no, +, -

  7. KY-023 Dual Axis Joystick Module

    • Pins: GND, +5V, VRx, VRy, SW

  8. HX711 - Bridge Sensor Interface

    • Pins: E+, E-, A-, A+, B-, B+, GND - GROUND, DATA (OUT), SCK - CLOCK (IN), 3.3/3.5V Supply

  9. 스피커 모듈

    • Pins: gnd, vcc, in, +, _

  10. Loudspeaker

    • Pins: pin1, pin2

  11. ESP32-C3-DevKitM-1

    • Pins: GND, 3V3, rst, g, 4, 5, 6, 7, G, 8, 9, 5V0, 19, 18, tx, rx, 10, 3, 2, 1, 0

  12. RFID-RC522

    • Pins: VCC (3.3V), RST, GND, IRQ, MISO, MOSI, SCK, SDA

Wiring Details

Adafruit 16-Channel 12-bit PWM Servo Shield - I2C

Servo

Arduino Mega 2560

Lcd 20x4 i2c

Load Cell - Red/white/black/green

Arcade Button (blue)