TinyS3 is an accessible ESP32S3 dev kit; it's tiny, versatile, easy to purchase, and I have a drawer full of them! The ESP32S3 chip by Espressif is a 240MHz dual-core embedded proessor with built-in wifi, bluetooth, and usb support. The TinyS3 adds 8Mb flash, 8Mb ram and pretty much everything else you need for a project.
TinyS3 is available through UnexpectedMaker's store directy, Mouser Digkey, Sparkfun and others. He's got tons of other great boards to check out to!
apt install cmake python3-libusb1
git clone --depth 1 --branch v5.2.2 https://github.com/espressif/esp-idf.git esp-idf-v5.2.2
cd esp-idf-v5.2.2
git submodule update --init --recursive
./install.sh
source export.sh
From here on, you will need to source export.sh to setup your environment.
git clone [email protected]:micropython/micropython.git
cd micropython
git submodule update --init --recursive
make -C mpy-cross
cd ports/esp32
From here, the commands assume the current working directory is micropython/ports/esp32.
ln -sf ~/micro-aprs/upy/boards/SS_TINYS3 boards/.
make BOARD=SS_TINYS3 USER_C_MODULES=~/micro-aprs/upy/c_modules/esp32s3.cmake
OR, try the vanilla TinyS3 board (already included in the Micropython project.)
make BOARD=UM_TINYS3
Before flashing the ESP32S3 needs to be in the bootloader. This is done by holding the boot button and clicking reset. You can find the right comm port with py -m serial.tools.list_ports. You may need to py -m pip install pyserial first.
py -m esptool --chip esp32s3 --port COM11 write_flash -z 0 .\build-SS_TINYS3\firmware.bin
Fire up a terminal and connect to the device (use py -m serial.tools.list_ports to find the COM port)
py -m serial.tools.miniterm COM20
Launch the "hello world" example by importing the tinys3 module.
import tinys3
The output is on IO1.
Blue line after a LPF filter, as described in the DAC section.
- Images and information from TinyS3 and the Unexpected Maker Store. Go buy some kit!