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Add note to hydra to note that the button pin has no pull-up (#6979)

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Add note to hydra to note that the button pin has no pull-up. Use an external resistor or remove the `#define`.
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Tom 2025-06-07 12:55:58 +01:00 committed by GitHub
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commit 15d2ae17f8
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variants/diy/hydra/variant.h
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@ -9,6 +9,8 @@
#define GPS_POWER_TOGGLE // Moved definition from platformio.ini to here
#define BUTTON_PIN 39 // The middle button GPIO on the T-Beam
// Note: On the ESP32 base version, gpio34-39 are input-only, and do not have internal pull-ups.
// If 39 is not being used for a button, it is suggested to remove the #define.
#define BATTERY_PIN 35 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
#define ADC_CHANNEL ADC1_GPIO35_CHANNEL
#define ADC_MULTIPLIER 1.85 // (R1 = 470k, R2 = 680k)