We are using STM32F103RBT6.
Meaning of the last letters:
- R - 64-pin. Previously we were using C (48-pin LQFP), but it seems like it is not enough for ProgArm project.
- B - 128 Kbytes of Flash. 8 (64 Kbytes) is fine too, but the price difference is pretty much negligible.
- T - LQFP package.
- 6 - operating temperature. 6 is good enough unless you want to boil ProgArm.
You can find the description of other options in the official datasheet on page 96.
STM32L
We are thinking about using STM32L in the next version, but this is undecided.
Pros:
Cons:
- Higher price
- Less features
- Less docs
- Less popularity