Julia for microcontrollers (like Micropython)

[Alexander-Barth]

I was not able to get xtensa to work but newer ESP32 devices use the RISC-V which has good LLVM support. Here are some experiments I did:

Compiling Julia code for a RISC-V ESP32 microcontroller

I wanted to share some experiments I did to run Julia on a ESP32 C3 using GPUCompiler and LLVM: This microcontrollers use the open RISC-V instruction set. The ESP32 family of microcontrollers are quite popular because they quite inexpensive and jet rather powerful (dual core processor, WiFi and Bluetooth). Once you have a Julia build with RISC-V enabled as LLVM target, GPUCompiler.jl can generate an object file with the compiled Julia code. I wrapped some functions from the Arduino API to ma…