What is PGA in HX711?
Electronic board based on the HX711 chip, a 24-bit analog-to-digital converter, specifically designed to interface the load cell to a microcontroller such as Arduino, Fishino or compatible. The input multiplexer selects either Channel A or B differential input to the low-noise programmable gain amplifier (PGA).
What is the output of HX711?
HX711 Pin Configuration
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | VSUP | Regulator supply: 2.7to 5.5V |
| 2 | BASE | Regulator control output (NC when not used） |
| 3 | AVDD | Analog supply: 2.6 to 5.5V |
| 4 | VFB | Regulator control input (connect to AGND when not used） |
What HX711?
The HX711 is a precision 24-bit analog-to-digital converter (ADC) that is designed for weighing scales and industrial control applications to interface directly with a bridge sensor. It is specially made for amplifying signals from cells and reporting them to another microcontroller.
What is gain in HX711?
The HX711 is an inexpensive 24bit ADC with programmable 128x, 64x, and 32x gain. Currently only channel A at 128x gain is supported. Read digital loadcell ADC value.
How do I use HX711 as ADC?
How to use ADC?
- To activate the on-chip oscillator, connect pin14 to ground. The output data rate is 10SPS or 80SPS. Use a crystal across XI and XO pins to obtain an accurate data rate at the output.
- Pin11 and pin12 are used to retrieve data. The pin12 becomes HIGH, when data is not ready.
What is HX711 IC?
HX711 is a precision 24-bit analog- to-digital converter (ADC) designed for weigh scales and industrial control applications to interface directly with a bridge sensor, load cell & strain guages. It Interface with simple digital I/O to any controller.
How accurate is Arduino load cell?
Also, you’ll see how to use the load cell module with Arduino. Then after learning about calibrating the load cell, you will create a digital scale that can measure the weight with an accuracy of 0.0001 grams and also a force gauge.