Temperature measurements with an NTC thermistor




Following a discussion on Facebook I put here an online tool to calculate the output of a voltage divider consisting of a fixed resistor and an NTC thermistor following a first order Steinhart–Hart equation.

The calculations are based on a voltage divider where either the voltage over the NTC or over the pass resistor is measured. You can change the values in the script according to your own settings. If you break the script for some reason, just reload the page.

SageMath uses Python as programming language.

Fortsätt läsaTemperature measurements with an NTC thermistor
Läs mer om artikeln Hacking IKEA trådfri lighting automation
IKEA TRÅDFRI Zigbee module on a breadboard.

Hacking IKEA trådfri lighting automation

I recently visited IKEA again and got interested in their affordable line of home automation/LED lighting products called TRÅDFRI (meaing wireless in a play-with-words kind of Swedish). Of course there…

Fortsätt läsaHacking IKEA trådfri lighting automation