How do you connect two load cells together?

How do you connect two load cells together?

To connect multiple load cells in parallel, use a watertight junction box, with a suitable terminal strip, or a multi-channel transmitter in the box. The cables in and out of the box or multi-channel transmitter require the installation of cable clamps.

How do you connect 4 load cells to HX711?

You can connect four cells to a loop that forms a single scale unit:

1. Form a loop by linking the same color outer wires (white and black) of the four load cells.
2. Connect the middle cable (red) of one of the diagonals to the E+ and E- outputs of the HX711 module.

What is HX711 load cell?

Grove – ADC for Load Cell (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.

How do I connect my Arduino to HX711?

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1. Step 1: Components.
2. Step 2: Connect the Load Cell to the HX711 Module.
3. Step 3: HX711 Module to the Arduino board.
4. Step 4: Start Visuino and select the Arduino Board type.
5. Step 5: In Visuino, add and connect HX711 Weight Scale component.
6. Step 6: Generate, Compile, and Upload the Arduino code.

How does the HX711 work?

HX711 is an electronic scale module, whose working principle is to convert the measured changes in resistance value changes, through the conversion circuit into electrical output. The module communicates with the host computer through TTL RS232.

What is a load cell simulator?

A load cell simulator is a handy tool during initial setup, particularly of a batching by weight scale. It replaces the load cell(s) in the system allowing the scale technician to simulate various weights that will trigger the outputs setpoints for activating valves, gates, and mixers.

How do you calibrate a load cell?

Steps to follow to calibrate your scale:

1. Start by placing the scale in a stable platform and environment.
2. Move to the calibration mode.
3. You need to select a test value weight.
4. Make sure that there are no items placed on the platform and even the bottom of the scale is not in contact with any object.

How do I connect the load cell to the hx711 module?

1. Connect the outer wires (white and black) of the load cell to the E+ and E- outputs of the HX711 module. E+ and E- are the power wires for the cells. The polarity doesn’t matter. Switching will only invert the calibration parameter in the software. 2. Connect the middle cable (red) of the load cell to the A+ input of the HX711 module. 3.

How to use interrupts with hx711_adc library?

In the schematic, I used pins 4 and 5, since those are the default pins for the examples of the “HX711_ADC” library. If you want to use interrupts to update scale data, then you should connect the DT output to an interrupt enabled pin of the Arduino. For Uno/Nano, those are pins 2 and 3. Using Two Load Cells in a Single Circuit.

How do I connect the hx711 amplifier to a microcontroller?

Load cell wires hooked up to the HX711 Amplifier board Once the load cell is is hooked up to the amplifier, you can hook up VDD, VCC, DAT, CLK, and GND to a microcontroller such as a RedBoard or Arduino board. Note: VCC is the analog voltage to power the load cell. VDD is the digital supply voltage used to set the logic level.

How do I Connect 4 load cells to one ADC?

If you want the four load cells to measure separate loads, use two HX711, or alternatively a 4-input ADC like the ADS1234. If they are all sharing the same load, as in a typical electronic bathroom scale, just connect them all in parallel to one input.