for temperature there are 1wire DS18B20, +- a resistor and data to pin4.. that is the easiest way just select the sensor in the 1w tab and give it a signalK key then it will show up in the signalk diag.window, stream
![[Image: learn_raspberry_pi_breadboard-probe.png?1396801706]](https://cdn-learn.adafruit.com/assets/assets/000/003/782/small360/learn_raspberry_pi_breadboard-probe.png?1396801706)
![[Image: 1W.jpg]](https://sailoog.gitbooks.io/openplotter-documentation/content/en/1W.jpg)
https://sailoog.gitbooks.io/openplotter-...en/1w.html
a Thermistor also works but you need a analog pin which the pi does not have you would need to add something like an ads1115 or an arduino "firmata" and configure it to use it.
i have used pir and gas sensors all types of switches magnetic, float, photosensors.so if you need help i'll try my best.
sorry i don't do the apple proprietary stuff i am no apple genius so ill be of no help there..open source
i feed every thing to node red and deal with it there.
https://sailoog.gitbooks.io/openplotter-...en/1w.html
a Thermistor also works but you need a analog pin which the pi does not have you would need to add something like an ads1115 or an arduino "firmata" and configure it to use it.
i have used pir and gas sensors all types of switches magnetic, float, photosensors.so if you need help i'll try my best.
sorry i don't do the apple proprietary stuff i am no apple genius so ill be of no help there..open source
i feed every thing to node red and deal with it there.