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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
Hi @Robin, whether the pins have ADC or PWM shouldn't affect their functionality as GPIO/SPI.
Do you remember which firmware version you had that actually worked? It's possible that the Pico's JS interpreter has got faster, and that has broken something in the NRF24L01P transmit code that worked previously?