M5Stack ESP32 Oscilloscope

About

Fully functional Dual Channel Oscilloscope running on M5Stack ESP32 development kit
The project is made in Visual Studio using vMicro Plugin: http://www.visualmicro.com/
Channel 1 Input: Pin 35
Channel 2 input: Pin 36

Testing and callibration

PWM signal Output: Pin 2
SignaDelta Output: Pin 5

Oscilloscope Menu:

Run/Stop
Channel 1 range
Channel 2 range
Channel 1 and 2 rate
Channel 1 mode (Normal, Inverted, Off)
Channel 2 mode (Normal, Inverted, Off)
Channel 1 Offset
Channel 2 Offset
Trigger Channel: 1 or 2
Trigger mode Auto, Normal, Scan
Trigger Level
Trigger Edge: Rising (UP) or Falling (DN)

Key B: Menu selection
Key A: Selected item -
Key C: Selected item +

Warning

- ESP32 MAXIMUM GPIO input voltage is 3.3V

- Feeding higher voltages on INPUT pin's can damage the chip

- Consider using a voltage divider to measure higher voltage signals