GPIOs used by the Scoppy firmware.

GPIO Input/Ouput Summary Description
0 & 1 Output UART TX & RX Some diagnostic information is written to the UART including error messages if scoppy enounters an unrecoverable error
2 & 3 Input - pulled down CH1 Voltage Range Currently selected voltage range for channel 1
4 & 5 Input - pulled down CH2 Voltage Range Currently selected voltage range for channel 2
6 to 13 Input Logic Analyzer inputs Connect up to 8 digital sources (0V to 3.3V)
14 Output Wi-Fi Status Connect to an LED to see if your Pico W is using wireless to connect to the Scoppy app
15 Output Trigger Connect to an LED to see when a trigger is fired
22 Output Test signal PWM 1kHz 50% duty cycle - can be connected directly to either of the ADC inputs
26 Input CH1 ADC input Connect the +ve output of your analog frontend (or signal source) here. Connect the ground of the analog frontend (or signal source) to GND.
27 Input CH2 ADC input Connect the +ve output of your analog frontend (or signal source) here. Connect the ground of the analog frontend (or signal source) to GND.




See Also

Documentation Index
Scoppy on GitHub
Using the App
Scoppy Forum & Support
FHDM Store