_chris 1 Report post Posted March 17, 2015 Hi, I bought the arduino linker shield (N05DH) and linker light sensor (N17DH) for use together but am facing an issue. When connected through the header pins on the shield I start to get readings, but when I put my finger over the LDR, the readings go low and stay low (even when I remove my finger). I noticed that the light sensor works fine on 3.3V but not on 5V so I presume that the shield is passing 5V to it. Can anyone confirm whether these 2 items should be compatible? Thanks! 1 carpinteyrolkh reacted to this Share this post Link to post Share on other sites
chain 57 Report post Posted March 18, 2015 We test the LDR module at 5V . You can check the pins you connected. http://linksprite.com/wiki/index.php5?title=LDR_Module Share this post Link to post Share on other sites