On 11 Jul 2018 at 1:33, Jim Ruxton wrote: > This particular laser detector module is sold many places online but I=20 > can't find the 3 terminal laser sensor itself. Does anyone know what the= =20 > part would be and where I can find it's specs. On this board it takes 5=20 > volts and ground and outputs a signal when a laser signal is received. I= =20 > am thinking it is just a phototransistor of some kind but I would like=20 > to know which one. It claims to be optimized for 650 nM. Here is a link=20 > to it. >=20 > https://www.amazon.com/Icstation-5V-Laser-Sensor-Module/dp/B01M8PFZRC/ref= =3Dcm_cr_arp_d_product_top?ie=3DUTF8 >=20 One of the photos there partially shows some text on the overlay underneath= the=20 photo transistor. If you have one, the answer might be written in front of = you. Or, in=20 a movie you could ask the computer to rotate and enhance the image... --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .