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Add GPIO Zero code example to Analog Zero

This commit is contained in:
Ben Nuttall 2016-10-17 22:55:40 +01:00
parent 692c174572
commit e722492754
1 changed files with 23 additions and 2 deletions
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src/en/overlay/analog-zero.md
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@ -38,7 +38,7 @@ install:
-->
#Analog Zero
The RasPiO Analog Zero offers a compact, inexpensive, easy way to add eight analog channels to your Raspberry Pi. RasPiO Analog Zero uses an MCP3008 analog to digital converter. It's an SPI driven, 10-bit, 8-channel ADC.
The RasPiO Analog Zero offers a compact, inexpensive, easy way to add eight analogue channels to your Raspberry Pi. RasPiO Analog Zero uses an MCP3008 analog to digital converter. It's an SPI driven, 10-bit, 8-channel ADC.
With RasPiO Analog Zero you can:
@ -48,4 +48,25 @@ With RasPiO Analog Zero you can:
* make a voltmeter
* use potentiometer dials for control and display
* read analog sensors or voltages
* make your own embedded device with minimal footprint
* make your own embedded device with minimal footprint
## Code
```python
from gpiozero import MCP3008
from time import sleep
left_pot = MCP3008(0)
light = MCP3008(1)
temperature = MCP3008(2)
right_pot = MCP3008(3)
while True:
print("Left pot value is {}".format(left_pot.value))
print("Light sensor value is {}".format(light.value))
print("Temperature sensor value is {}".format(temperature.value))
print("Right pot value is {}".format(right_pot.value))
sleep(1)
```
[GPIO Zero docs: MCP3008](http://gpiozero.readthedocs.io/en/v1.3.1/api_spi.html#gpiozero.MCP3008)