US EditionCircuitPython keypad Workarounds for the Raspberry PI RP2350
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CircuitPython keypad Workarounds for the Raspberry PI RP2350
The Raspberry Pi RP2350 chip, which is used for the Pi Pico 2 and numerous Adafruit boards, has some limitations due to a GPIO hardware issue. This issue can make the CircuitPython keypad module not work properly: a GPIO pin can read as high even when driven or pulled low, if the input signal is high impedance or if an attached pull-down resistor is too weak (has too high a value). The internal pull-down resistors are not strong enough to overco…
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