Circuit Documentation
Summary
This document provides a detailed overview of a circuit involving an ESP32 microcontroller, an HX711 bridge sensor interface, and multiple load sensors. The ESP32 is used to read data from the HX711, which in turn interfaces with the load sensors to measure weight. The document includes a component list, wiring details, and code documentation.
Component List
ESP32 (30 pin)
- Description: A versatile microcontroller with Wi-Fi and Bluetooth capabilities.
- Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3
HX711 - Bridge Sensor Interface
- Description: A precision 24-bit analog-to-digital converter (ADC) designed for weigh scales and industrial control applications.
- Pins: E+, E-, A-, A+, B-, B+, GND - GROUND, DATA (OUT), SCK - CLOCK (IN), 3.3/3.5V Supply
Load Sensor - 50kg
- Description: A load cell sensor capable of measuring weight up to 50kg.
- Pins: W, R, B
Wiring Details
ESP32 (30 pin)
- D23 is connected to SCK - CLOCK (IN) of the HX711.
- D22 is connected to DATA (OUT) of the HX711.
- GND is connected to GND - GROUND of the HX711.
- 3V3 is connected to 3.3/3.5V Supply of the HX711.
HX711 - Bridge Sensor Interface
- SCK - CLOCK (IN) is connected to D23 of the ESP32.
- DATA (OUT) is connected to D22 of the ESP32.
- GND - GROUND is connected to GND of the ESP32.
- 3.3/3.5V Supply is connected to 3V3 of the ESP32.
- E+ is connected to R of one of the Load Sensors.
- E- is connected to R of another Load Sensor.
- A- is connected to R of another Load Sensor.
- A+ is connected to R of another Load Sensor.
Load Sensor - 50kg
- W of all Load Sensors are interconnected.
- B of all Load Sensors are interconnected.
- R of one Load Sensor is connected to E+ of the HX711.
- R of another Load Sensor is connected to E- of the HX711.
- R of another Load Sensor is connected to A- of the HX711.
- R of another Load Sensor is connected to A+ of the HX711.
Code Documentation
No code is provided for this circuit.
This document provides a comprehensive overview of the circuit, including the components used, their connections, and the absence of any embedded code.