09-27-2022 08:46 AM
Hi, I'm using a Bosch BME280 sensor for measuring temperature, relative humidity and pressure.
I need to know which are the working principles of the sensor for temperature, relative humidity and pressure.
Thanks for anyone that helps.
Solved! Go to Solution.
09-30-2022 01:16 AM
Thanks for your inquiry.
BME280 pressure sensor working principle is at https://www.youtube.com/watch?v=zXIeqeT_FC8. It is pizzo resistive Winston bridge.
BME280 humidity sensor is based on capacitance change MEMS technology and the temperature sensor is from the diode on the MEMS structure.
09-30-2022 09:40 AM
Hi, thank you very much.
I'm writing an article about a project where I use the BME280. Is there any documents where I can find these informations? So, I can write the reference in the article to the documents or web site.
Thank you very much.
09-30-2022 06:21 PM
BME280 = BMP280 + humidity sensor. BMP280 working principle is decribed a little on page 3 of BMP280 datasheet at https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp280-ds001.pdf. Due to IP concern we cannot disclose more about BME280 humidity part working principle.
10-01-2022 02:11 PM
Thanks for helping me