ESP-IDF

• v4.4 is still commonly used (as of 2023-10-17)
• building v5 with Arduino as a compoment can have issues
• Build Arduino as a component to have access to a large repository of libraries

Chips

• Choose ESP32S3 rather than ESP32. It has a better specs, USB, i2c pins can be arbitrary
• ESP32S3 USB port eliminates the need of a serial USB adapter (it even has JTAG)
• ESP32 has ethnernet
• ESP32-C3 is a single core RISC-V

Flashing

• Serial to USB
• USB (ESP32S3)
• ESP-PROG board
• esp32 webflasher

JTAG

• The ESP32S3 exposes a JTAG interface through the USB-PORT. No additional HW required (only a USB cable)

DEV TOOLS

• Clion and the plugin
  • link plugin
  • link OpenOCD plugin for remote debugging
• Instrumented profiler through interrups TODO link
• Wokwi https://github.com/MabezDev/wokwi-server/releases

Storage

• LittleFS
• InfluxDB
• https://github.com/armink/FlashDB/

PWM

There are at least 2 APIs:

• LEDc timer
• mcpwm

mcpwm is more advanced, with dead time and sync

for the LEC API there is a SPWM port: https://github.com/FLWL/esp32-spwm

Dev Boards

• rust https://github.com/esp-rs/esp-rust-board
• https://github.com/UnexpectedMaker/esp32s3/blob/main/schematics/schematic-omgs3.pdf (esp32s3.com)
• esp32-s3 zero waveshare (23.5 x 18 mm, 16pins)
• Seeed Studio XIAO ESP32S3 (21 x 17.8 mm, 14pins)
• https://github.com/femtoduino/femu-hardware/tree/master/femu/kicad/femu

Rust Demos

• https://github.com/JurajSadel/esp32s3-no-std-async-mqtt-demo
• https://github.com/esp-rs/awesome-esp-rust