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Register updated HX711 doc file

This commit is contained in:
Marcel Stör 2016-01-10 23:32:51 +01:00
parent a9dee9e74c
commit ee80236053
2 changed files with 10 additions and 8 deletions
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16
docs/en/modules/hx711.md
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@ -1,20 +1,19 @@
# HX711 Module
This module provides access to an HX711 load cell amplifier/ADC. The HX711 is an inexpensive 24bit ADC with programmable 128x, 64x, and 32x gain. Currently only channel A at 128x gain is supported.
Note: To save ROM image space, the hx711 module is not compiled into the firmware by default.
This module provides access to an [HX711 load cell amplifier/ADC](https://learn.sparkfun.com/tutorials/load-cell-amplifier-hx711-breakout-hookup-guide). The HX711 is an inexpensive 24bit ADC with programmable 128x, 64x, and 32x gain. Currently only channel A at 128x gain is supported.
Note: To save ROM image space, this module is not compiled into the firmware by default.
## hx711.init()
Initialize io pins for hx711 clock and data.
#### Syntax
`hx711.init(clk,data)`
`hx711.init(clk, data)`
#### Parameters
- `clk` pin the hx711 clock signal is connected to.
- `data` pin the hx711 data signal is connected to.
- `clk` pin the hx711 clock signal is connected to
- `data` pin the hx711 data signal is connected to
#### Returns
`nil`
@ -24,6 +23,7 @@ Initialize io pins for hx711 clock and data.
-- Initialize the hx711 with clk on pin 5 and data on pin 6
hx711.init(5,6)
```
## hx711.read()
Read digital loadcell ADC value.
@ -32,14 +32,14 @@ Read digital loadcell ADC value.
`hx711.read(mode)`
#### Parameters
- `mode` ADC mode. This parameter is currently ignored and reserved to ensure backward compatability if support for additional modes is added. Currently only channel A @ 128 gain is supported.
`mode` ADC mode. This parameter is currently ignored and reserved to ensure backward compatability if support for additional modes is added. Currently only channel A @ 128 gain is supported.
|mode | channel | gain |
|-----|---------|------|
| 0 | A | 128 |
#### Returns
a number (24 bit signed ADC value extended to the machine int size.)
a number (24 bit signed ADC value extended to the machine int size)
#### Example
```lua

2
mkdocs.yml
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@ -36,7 +36,9 @@ pages:
- 'enduser setup': 'en/modules/enduser-setup.md'
- 'file': 'en/modules/file.md'
- 'gpio': 'en/modules/gpio.md'
- 'hx711' : 'en/modules/hx711.md'
- 'i2c' : 'en/modules/i2c.md'
- 'net': 'en/modules/net.md'
- 'node': 'en/modules/node.md'
- 'mqtt': 'en/modules/mqtt.md'
- 'pwm' : 'en/modules/pwm.md'