The Open Story Teller project continues with a major change: we switch the main MCU board from the Arduino MKR to a RISC-V based board from Sipeed : Longan Nano. The MCU is a STM32 clone, the GD32 family.
This change is due to the price of the MKR ; but it can be a reliable solution for another variant of the project. The GD32 is also available with different boards such as a SeeedStudio or Lyligo brand. The SeeedStudio is very nice and has many GPIO : it may be a good candidate for our final product.
As always, the source code is available on github: https://github.com/arabine/risc-v-tutorial
The next part will focus on the display and the buttons!