To make use of this all you need to do is set a trigger value. Anything below 600 would do. In the Camera Controller I have a potentiometer which allows me to fine tune the trigger value while making water drops. Water drop detector Above is the water drop detector I built. It connect...
Put the HC-05 in to AT mode (hold the button switch closed while powering on). If you are not sure how to do this seeArduino with HC-05 (ZS-040) Bluetooth module – AT MODE. When in AT mode the LED on the HC-05 should blink on/off every second. First, check...