Users will need to provide their own Arduino Pro Mini and the hardware features a 1.4 W, 8 Ohms, Texas Instruments TPA2005D1, 14 bit ganged PWM, PWM 8 kHz low pass smoothing filter all powered by ...

sound sensor 1 Articles Megavallometer Camera Trigger. July 17, ... Once connected to his camera he selects one of the three trigger programs, and the Arduino handles the rest.