Difference between revisions of "Interface the HX711 to Pi"
| Line 3: | Line 3: | ||
Building a scale using the DCT Electronic HX711 board is as easy as Pi! | Building a scale using the DCT Electronic HX711 board is as easy as Pi! | ||
| − | #Order the board | + | #Order the board for $6.99 on [http://www.ebay.com/itm/Weighing-Sensor-AD-Module-Dual-channel-24-bit-a-d-Conversion-HX711-Shieding-/400460838550 Ebay] |
| − | #Download the software from gitHub | + | #Download the software from gitHub <br> git clone https://github.com/ggurov/hx711 |
#Solder headers in P5 and DCT board | #Solder headers in P5 and DCT board | ||
#Solder the load cells to the DCT board. | #Solder the load cells to the DCT board. | ||
| Line 36: | Line 36: | ||
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. | ||
| − | need a female header 1x4 | + | You will need a female header 1x4 and load cells. |
| − | + | ==Calibration== | |
| − | + | ==HX711 spec sheet== | |
Revision as of 20:55, 18 April 2014
Building a scale using the DCT Electronic HX711 board is as easy as Pi!
- Order the board for $6.99 on Ebay
- Download the software from gitHub
git clone https://github.com/ggurov/hx711 - Solder headers in P5 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 and load cells.
