if (val==HIGH) { digitalWrite (led, HIGH); } else { digitalWrite (led, LOW); } }
时间: 2024-05-22 09:12:09 浏览: 47
LINUX驱动程序_LED+定时器实现流水灯
This code is a simple if-else statement in Arduino programming. It checks if the value of the variable "val" is equal to "HIGH", and if it is, it sets the digital output pin "led" to "HIGH" (turns on the LED). If the value of "val" is not equal to "HIGH", it sets the digital output pin "led" to "LOW" (turns off the LED).
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