https://github.com/SergeyPiskunov/micropython-hx711

Micropython driver for HX711 24-Bit Analog-to-Digital Converter
https://github.com/SergeyPiskunov/micropython-hx711

Last synced: 2 months ago
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Micropython driver for HX711 24-Bit Analog-to-Digital Converter

• Host: GitHub
• URL: https://github.com/SergeyPiskunov/micropython-hx711
• Owner: SergeyPiskunov
• License: mit
• Created: 2018-03-25T14:00:09.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-01-16T23:29:55.000Z (6 months ago)
• Last Synced: 2024-04-01T21:22:12.458Z (3 months ago)
• Language: Python
• Size: 15.6 KB
• Stars: 76
• Watchers: 6
• Forks: 23
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Lists

• awesome-micropython - micropython-hx711 - MicroPython driver for HX711 24-Bit Analog-to-Digital Converter. (Libraries / Sensors)

README

        
# micropython-hx711

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()

```