sam32-wifi-projects

https://lab64.stanford.edu/

CircuitPython projects for the SAM32 board made by Max Holliday and Steve Clark

Note: If you haven't updated the ESP32 WiFi chip (you'll know if you have) then load NINA_W102-1.3.0_sam32.bin onto a microSD card, insert that into the SAM32, connect to the SAM32, and run esp32spi_prog.py.

Instructions

Copy and paste lib/ into the root (base) directory of the CIRCUITPY drive. If your SAM32 will be a server, repeat with static/.

Depending on what you want your SAM32 to do, paste either esp32-http-client.py or esp32-http-server.py into the root directory of the CIRCUITPY drive and rename the file to main.py.

Directories & Files	Description
lib	CircuitPython library files
static	STATIC webserver files
esp32-http-client.py	Template for client side interaction with SAM32 webserver
esp32-http-server.py	Template for SAM32 webserver
esp32spi_prog.py	Script to load ESP32 firmware from microSD

Project Status

• Initialize a SAM32's firmware and CircuitPython libraries in order to run code.

• Connect a client SAM32 to a server SAM32 using a WiFi access point (AP).

• Access the AP webserver using a computer.

• Verify HTTP requests between client and server work.

• Create a .json document in /static so a server can broadcast data to its clients.

• Send and receive wireless Digital & Analog pin commands (PWM and Digital I/O).

• Test pin commands on LEDs & servo.

• Scale the test to >2 clients.

• Control latency between client/server requests.

• Log data onto the webpage.

• Add ways to actuate and control SAM32 from browser.

Direct Questions, Concerns, Suggestions to: kustinj AT stanford DOT edu