Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with multiple components including servos, an LDR module, an I2C LCD, a load cell, an HX711 bridge sensor interface, and a power LED. The Arduino UNO controls the servos and reads data from the sensors to display on the LCD.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

Servo

• Description: A motor that can be controlled to move to a specific position.
• Pins: gnd, vcc, pulse

Module LDR

• Description: A light-dependent resistor module used to detect light intensity.
• Pins: VCC, GND, DO, AO

16x2 I2C LCD

• Description: A 16x2 character LCD with I2C interface.
• Pins: GND, VCC, SDA, SCL

Load Cell - Red/white/black/green

• Description: A sensor used to measure weight or force.
• Pins: E+, A-, E-, A+

Power LED 12V 10W 0.8-0.9A

• Description: A high-power LED.
• Pins: +, -

HX711 - Bridge Sensor Interface

• Description: An interface for bridge sensors like load cells.
• Pins: E+, E-, A-, A+, B-, B+, GND - GROUND, DATA (OUT), SCK - CLOCK (IN), 3.3/3.5V Supply

Wiring Details

Arduino UNO

• A0: Connected to AO of Module LDR
• A4: Connected to SDA of 16x2 I2C LCD
• A5: Connected to SCL of 16x2 I2C LCD
• D2: Connected to DATA (OUT) of HX711 - Bridge Sensor Interface
• D3: Connected to SCK - CLOCK (IN) of HX711 - Bridge Sensor Interface
• D4: Connected to pulse of Servo
• D5: Connected to pulse of Servo
• D6: Connected to pulse of Servo
• D7: Connected to + of Power LED 12V 10W 0.8-0.9A

Servo

• gnd: Connected to GND of Module LDR and - of Power LED 12V 10W 0.8-0.9A
• vcc: Connected to VCC of Module LDR
• pulse: Connected to D4, D5, D6 of Arduino UNO

Module LDR

• VCC: Connected to vcc of Servo
• GND: Connected to gnd of Servo and - of Power LED 12V 10W 0.8-0.9A
• AO: Connected to A0 of Arduino UNO

16x2 I2C LCD

• GND: Connected to GND - GROUND of HX711 - Bridge Sensor Interface
• VCC: Connected to 3.3/3.5V Supply of HX711 - Bridge Sensor Interface
• SDA: Connected to A4 of Arduino UNO
• SCL: Connected to A5 of Arduino UNO

Load Cell - Red/white/black/green

• E+: Connected to E+ of HX711 - Bridge Sensor Interface
• A-: Connected to A- of HX711 - Bridge Sensor Interface
• E-: Connected to E- of HX711 - Bridge Sensor Interface
• A+: Connected to A+ of HX711 - Bridge Sensor Interface

Power LED 12V 10W 0.8-0.9A

• +: Connected to D7 of Arduino UNO
• -: Connected to gnd of Servo and GND of Module LDR

HX711 - Bridge Sensor Interface

• E+: Connected to E+ of Load Cell
• A-: Connected to A- of Load Cell
• E-: Connected to E- of Load Cell
• A+: Connected to A+ of Load Cell
• GND - GROUND: Connected to GND of 16x2 I2C LCD
• DATA (OUT): Connected to D2 of Arduino UNO
• SCK - CLOCK (IN): Connected to D3 of Arduino UNO
• 3.3/3.5V Supply: Connected to VCC of 16x2 I2C LCD

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:

}

Documentation (documentation.txt)

This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino UNO microcontroller.