I'm looking around for components for stand alone temperature logging at low energy requirement.
- I already chose Adafruit PT1000RTD (Id.3648) to evaluate a PT1000 sensor with 4 wire measurement.
Now I'm searching for board to take the measurements from this PT1000 board, combine them with real-time data and store them.
It should have the requirements
- memory capacity to store a few ten-thousend data sets (or more)
- low energy, capable to work with a (LiPo?) battery for a few months stand alone
- reliably working deep sleep mode
- dimension as small as possible, i.e. not much more short dimension than 25mm, while its length is less important.
- real time clock
- there is no need for real time data transmission through the air
- reliability (no unexpetected stop or data loss)
- Adafruits Feather product line, i.e. the HUZZAH board (Id 2821)
- Adafruits Trinket product line M0 (Id 3500)
- Arduino Nano
- WEMOS D1 mini lite (consumes only 0,04mA in sleep mode)
- Teensy 4.1 ((Mb Flash)
- some boards with the option to write to SD-cards instead of Flash
- and I guess there might be much more or better suitable boards.
Often I do not find, power consumption information. Sometimes I have problems to figure out, if there might be icompatibilities, as I'm not too experienced in that are. So I don't know the special points where to look first.
Thanks
Hans