hz

• School: Tecnológico de Monterrey
• Semester: 4
• Course: MR-2003B
• Professor: Ricardo Esteban Roberts-Ugrinovic
• First Class: 2026-02-09

Reads the voltage from a sensor to measure the grid's frequency.

Useful commands:

# Compile and upload the code to the ESP32
arduino-cli compile --upload -p /dev/ttyUSB0 --fqbn esp32:esp32:esp32 ReadVoltage

# Monitor the serial output from the ESP32
arduino-cli monitor -p /dev/ttyUSB0 -c baudrate=115200

# Or, capture data for one hour and save it to out.txt:
read

I'm not expecting anyone to even see this code, but it's under AGPLv3. See LICENSE for details.