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Raspberry Pi Pico ADC: API, Temperature Sampling & ISR Tips

Pico ADC software full analysis

ruilixin6

Published August 24, 2026

Raspberry Pi Pico ADC: API, Temperature Sampling & ISR Tips

Project description

【Preliminary Note】The original hardware example in this article was written based on the RP2040. The actual hardware used in this hands-on demonstration features the W55RP20 as the main controller chip. The circuit logic and UF2 flashing operation principles are universally applicable, with only the main controller model differing. The original chip model mentioned in the circuit descriptions below is provided for reference purposes only. Software Control Methods 1.1 Constructor of machine.ADC class The constructor for the machine.ADC class is shown below: 1.2 Other methods of machine.ADC…

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