Difference between revisions of "Interface the HX711 to Pi"
| Line 12: | Line 12: | ||
#define DATA_PIN 28 | #define DATA_PIN 28 | ||
| − | {| | + | {|class="wikitable" |
| + | !P5 | ||
| + | !Pi | ||
| + | !HX711 | ||
| + | |- | ||
|P5-1 | |P5-1 | ||
| +5 | | +5 | ||
| + | | Vcc | ||
|- | |- | ||
|P5-3 | |P5-3 | ||
|GPIO28 | |GPIO28 | ||
| + | |DO/RX | ||
|- | |- | ||
|P5-5 | |P5-5 | ||
|GPIO30 | |GPIO30 | ||
| + | |CK/TX | ||
|- | |- | ||
|P5-7 | |P5-7 | ||
|Ground | |Ground | ||
| + | |GND | ||
|} | |} | ||
| − | + | The DCT board comes with two sets of headers, straight and right angle, and a metal shield. | |
need a female header 1x4 | need a female header 1x4 | ||
Revision as of 19:40, 18 April 2014
Building a scale using the DCT Electronic HX711 board is as easy as Pi!
- Order the board from ebay
- Download the software from gitHub
- 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.
need a female header 1x4
Just need load cells and calibration
The HX711 spec sheet
