Difference between revisions of "Interface the HX711 to Pi"
| Line 6: | Line 6: | ||
#Download the software from gitHub <br> git clone https://github.com/ggurov/hx711 | #Download the software from gitHub <br> git clone https://github.com/ggurov/hx711 | ||
| − | #Solder headers in P5 (bottom side of board) and DCT board | + | #Solder headers in P5 on Pi (bottom side of board) and DCT board |
#Solder the load cells to the DCT board. | #Solder the load cells to the DCT board. | ||
#Change the GPIO pins from 30 and 31 to 28 and 30 in hx711.c This way they are all on one side of P5: | #Change the GPIO pins from 30 and 31 to 28 and 30 in hx711.c This way they are all on one side of P5: | ||
| Line 37: | Line 37: | ||
The DCT board comes with two sets of headers, straight and right angle, and a metal shield. | The DCT board comes with two sets of headers, straight and right angle, and a metal shield. | ||
| − | You will need a female header 1x4 and load cells. | + | You will need a female header 1x4 ([[http://www.amazon.com/Gino-2-54mm-Straight-Single-Headers/dp/B00899WQ6U/ref=sr_1_1?s=electronics&ie=UTF8&qid=1397881924&sr=1-1&keywords=headers 2.54mm Pitch Straight Single Row PCB Female Pin Headers]] and load cells. |
==Calibration== | ==Calibration== | ||
==HX711 spec sheet== | ==HX711 spec sheet== | ||
Revision as of 20:36, 18 April 2014
Building a scale using the DCT Electronic HX711 board is as easy as Pi!
- Download the software from gitHub
git clone https://github.com/ggurov/hx711 - Solder headers in P5 on Pi (bottom side of board) and DCT board
- Solder the load cells to the DCT board.
- Change the GPIO pins from 30 and 31 to 28 and 30 in hx711.c This way they are all on one side of P5:
#define CLOCK_PIN 30 #define DATA_PIN 28
| P5 | Pi | HX711 |
|---|---|---|
| P5-1 | +5 | Vcc |
| P5-3 | GPIO28 | DO/RX |
| P5-5 | GPIO30 | CK/TX |
| P5-7 | Ground | GND |
The DCT board comes with two sets of headers, straight and right angle, and a metal shield.
You will need a female header 1x4 ([2.54mm Pitch Straight Single Row PCB Female Pin Headers] and load cells.
