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All Projects → botofancalin → M5stack Esp32 Oscilloscope

botofancalin / M5stack Esp32 Oscilloscope

Licence: mit
A fully functional oscilloscope based on ESp32 M5Stack

M5Stack ESP32 Oscilloscope

image

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:

  1. Run/Stop
  2. Channel 1 range
  3. Channel 2 range
  4. Channel 1 and 2 rate
  5. Channel 1 mode (Normal, Inverted, Off)
  6. Channel 2 mode (Normal, Inverted, Off)
  7. Channel 1 Offset
  8. Channel 2 Offset
  9. Trigger Channel: 1 or 2
  10. Trigger mode Auto, Normal, Scan
  11. Trigger Level
  12. 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

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