I tried to make a temperature logger using 2 dallas sensors, a micro SD card for storing values and a RTC for “acurate” date of each row saved in the csv file.
I havent made the PCB yet but I want to start make it now, the wires are all connected to a breadboard now, maybe this was the problem but still it’s weird in some case the same issue appeared for multiple seconds … like 4 - 5 readings, consecutively in 4 - 5 seconds, one reading / second
here are some photos and a graph to see the errors and the breadboard, it seems the problems started only when I placed the breadboard in the car and the temperature started to drop, when the temp dropped from 22 to 14 I placed the sensor inside my stopped car, when it dropped from 14 to -8 I placed the sensor on the hood of my car, with the engine running as I was inside the car flying my QUAD.
I made some protection for the LiPo of my quad and I want to measure the temperature inside the protection and outside of it, to see which material works best.
Thank you and I wish you a Happy New Year to all you guys and girls
PS. I believe the issue with temperature are because of connection on the bread board, but I wanted to see if other have experienced this before.