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A Boolean variable type is one that has only 2 possible values, true or false . Internally ... ... <看更多>

in line 44 boolean value = false; this declare a local variable value and set it to false witch is not your global value. arduino suggest ... ... <看更多>

ArduinoBLE library for Arduino. Contribute to arduino-libraries/ArduinoBLE development by creating an account ... Replace boolean with standard bool (#42). ... <看更多>

These can be used inside the condition of an if statement. && (logical and). True only if both operands are true, e.g. if (digitalRead(2) == HIGH && ... ... <看更多>