Control output voltage on GPIO?
Posted: Mon May 16, 2016 1:31 pm
Hi,
I want to output a constant voltage between 0.91 und 1.43 Volts on a GPIO to control the thermostat of a heater. This is just a "control voltage", so I assume it will not draw any power.
The examples I found so far only show how to power on/off a gpio (0 / 1) by using cat and sysfs.
Questions:
- To which pins do I have to connect + and - to output a controllable voltage between 0.91 and 1.43 volts
- How can I set the output voltage to a GPIO using cat + sysfs
Thanks
I want to output a constant voltage between 0.91 und 1.43 Volts on a GPIO to control the thermostat of a heater. This is just a "control voltage", so I assume it will not draw any power.
The examples I found so far only show how to power on/off a gpio (0 / 1) by using cat and sysfs.
Questions:
- To which pins do I have to connect + and - to output a controllable voltage between 0.91 and 1.43 volts
- How can I set the output voltage to a GPIO using cat + sysfs
Thanks