I'm using the DS18B20 temp sensor connected to the Raspberry Pi. Installation instructions are here: https://learn.adafruit.com/adafruits-raspberry-pi-lesson-11-ds18b20-temperature-sensing/hardware
Apologies. I assumed you might using the data to control a simple home heating or cooling system. If so the differential between switch on and off at a set control temperature is important to maintain comfort. 1deg F is preferable to 2deg F.
How are you streaming multiple data feeds in real-time? I've been pounding my head against the keyboard trying to figure out how to stream 5 different temperature sensors on my RPi GPIO to plotly within one command in python...
@craigh, I switched over to local mySQL database once TempoDB started charging money. Please have a look again at the repository, I uploaded the latest code.
I'm running a multithreaded python script. Each sensor runs it's own thread to periodically read and save the data to the mySQL database. The plotly thread queries the database and posts the plot. More details here: https://github.com/flann321/HomeCoolingPi
How have you set up your raspberry pi thermometer and do you have several measuring points or just one?
I'm using the DS18B20 temp sensor connected to the Raspberry Pi. Installation instructions are here: https://learn.adafruit.com/adafruits-raspberry-pi-lesson-11-ds18b20-temperature-sensing/hardware
What temperature switching differential are you using???
Apologies. I assumed you might using the data to control a simple home heating or cooling system. If so the differential between switch on and off at a set control temperature is important to maintain comfort. 1deg F is preferable to 2deg F.
How are you streaming multiple data feeds in real-time? I've been pounding my head against the keyboard trying to figure out how to stream 5 different temperature sensors on my RPi GPIO to plotly within one command in python...
I'm using this python api library. https://github.com/smbaker/pynest
The github page suggests using TempoDB. Doesn't that cost $100/month minimum? I see above you suggest mysql. What are you using for datastore? thanks.
@craigh, I switched over to local mySQL database once TempoDB started charging money. Please have a look again at the repository, I uploaded the latest code.
Nice. How are you getting the temperature from your Nest?
@letters, I don't understand your question. Could you clarify?
I'm running a multithreaded python script. Each sensor runs it's own thread to periodically read and save the data to the mySQL database. The plotly thread queries the database and posts the plot. More details here: https://github.com/flann321/HomeCoolingPi