Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi,
I've gotten ahold of a 90s Magnavox RD0946 CRT TV that I am using to show a series of video animations for an art project. I have connected the tv to a raspberry Pi via composite so the videos are playing nicely, now the big idea would be to be able to use the remote (and eventually the...
Hey all, Hope you're all well.
I've been looking over the past few days for a specific type of IR Laser detector system I require for a design project underway.
To explain quickly what I need is basically a system (as small as possible) that can detect an IR laser (in multiple wavelengths)...
I'm trying to make a simple IR circuit that energizes a coil when the detector "sees" the beam (refer to attached schematic). The problem is when the everything is active, I have almost no current at the coil. Why am I losing so much current? I suspect it's because the base of the NPN transistor...
I was pondering it would be cool to create a, lets call it a "toy" and suppose it's a bear or a doll or something, which can detect passers by and turn it's head as though it's watching them. Ok maybe it's just creepy.
Is there some kind of sensor, or way of making a sensor, which can detect...
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