OVERVIEW:5V Light Photoswitch Sensor Switch LDR Photoresistor Relay Module Light Detection Photosensitive Sensor Board the stable version of the module is 5V supply, without delay function, pull relay matt, bright disconnectFeatures:using the photoresistor induction light intensity comes with the re..
OVERVIEW:
LM393 Sound Detection Sensor Module for
Arduino detects whether the sound has exceeded a threshold value. The sound is
detected via a microphone and fed into an LM393 op-amp.
The sound level setpoint is adjusted via an
onboard potentiometer. When the sound level exceeds the setpoi..