Micropython driver for the HX711 24-Bit Analog-to-Digital Converter
Latest version supports:
- retrieving data from the channel 'A' with gain 128 and 64, the channel 'B' with gain 32 in a raw form and a form converted from the two's complement.
- sending "power off" sequence to switch device to the power-saving mode.
- sending "power on" sequence with the gain saved before the "power off".
- checking if the device is ready for the data retrieval.
Example for the ESP8266:
D_OUT pin is connected to the GPIO 5
PD_SCK pin is connected to the GPIO 4
Using internal HX711 oscillator, so ESP8266's frequency is set to 160000000
>>> from machine import freq >>> freq(160000000) >>> >>> from hx711 import HX711 >>> >>> driver = HX711(d_out=5, pd_sck=4) >>> driver HX711 on channel A, gain=128 >>> driver.read() 74342 >>> >>> driver.channel=HX711.CHANNEL_A_64 >>> driver.channel ('A', 64) >>> driver.read() 36328 >>> >>> driver.power_off()