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Thanks guys! @3DDave: even if I had a few kilometers of optical fiber laying around, I would find something better to do with it... Good one, anyway! [smile] @IRstuff: even a simpler CPLD would be overkill, for several reasons. A FPGA doesn't come into discussion. I was looking for a much...

Yes, they are! I know about them... They are good to delay one pulse, or several, if they come at intervals longer than the delay. As I've mentioned, I have a train/burst of pulses, at intervals of ~0,5µs, so much shorter than the wanted delay. And I want to have the same train at the output...

Hi guys! I'm trying to find a solution for this problem I have, and I hope someone here might have come across such a situation and wants to share his/her experience. This is it: I have a train of 10-40 pulses of 2-4 MHz coming from a source. I want to delay this train by 10-20 µs. There are...

The TDA4050B was specifically designed as IR remote control preamplifier/filter/limiter. It expects a (square wave) input signal in the range of mV to 100's of mV, it limits this signal with an input diode, it (heavily) amplifies it with a narrow band pass amplifier (ex. 3KHz @ 38KHz) - that's...

It looks like the motors are reseting your micro when turned on... Separate supply lines would be nice! While the motors don't mind of supply fluctuations (do they really need a regulator?), the micros need good quality supply: filtration, regulation, no spikes/dropouts, etc. You didn't say...

Two circuits are parts of the solution: 1 - a movement/rotation sensor; 2 - a retriggerable timer/monostable. For the first circuit I'd use either one of this: - hall sensor; with a small magnet attached/glued to one of the rods - optical sensor: - reflective sensor - and you need to glue a...

Hi, everyone! I have this problem: the xp search companion (Start->Search->All files and folders->Look in:) only shows this entries: My Documents My Pictures My Music Desktop My Computer... and that's it! No drives, folders, network drives and especially 'Browse...'. Every search has to be...

A simple and cheap solution is to use Darlington PNP's instead of simple transistors. To turn them on, you will need only 3...5 mA (usual gain is over 1K) instead of 25mA - which is the maximum sink current for the PIC output. To turn them off, I'd suggest two things: 1 - Use the TRIS register...