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197 |
| Author | Views | Views Today | Rank | Comments |
| 211,770 | 7 | |
197 |
|
I have received a number of emails requesting schematics for infa-red remotes. So here is one. This remote transmits a tone using an infa-red LED. This tone is decoded by the receiver. Since the receiver only switches when it "hears" the tone, there are no accidental activations. |
Schematic For Transmitter |
Schematic For Receiver |
Parts |
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Notes |
Related Circuits |
Comments |
| Could someone please help me. I am a beginner at this kind of stuff and I just want to make a one button simple IR remote. I have an IR receiver module. Is this an IR triggered switch in itself? | ||
| Its very nice. | ||
| Hi I`ve a gradually voltage increased LED on the transmission side. For this i need a IR / RF transmitter and receiver circuit | ||
| i want to set frequency 0f more than 50 what i have to do? | ||
| I'm in my way to finish the connection of the circuit but i'm asking how can i let the NPN phototransistor receive the sign from the infra-red with longer distance pls help me in this thank you... dear | ||
| not working for me.. I used NTE3122 phototransistor.. 1 megaohm resistor between pin 3 of IC1 and ground.. tried with and without R6.. all the parts I used are the same as in the list except 2N2222, unfortunately I can't find them here in montreal so I tried PN2222 and 2N3904.. I don't know if the problem is from the transmitter or receiver.. but when I touch the phototransistor pins with a jumper, as soon as I release this jumper, the relay receive a pulse and it activate for a short time, but doesn't stay on.. I also tried many different IR leds on the transmitter.. | ||
| I have a car which moves forward and back word dirction. But now problem is that it could go backworkd direction the technical details of car as Circuit No JM67 using transistor No. S8050 S8550. can help me regarding circuit diagram of the same, please. | ||
| Hi im trying to build a simple IR remote which sends a short pulse to a receiver, which in turn will send a signal to turn a motor. At the moment i have a debounced switch sending a signal to an IRED. I was then thinking to use a phototransistor (incorprated in a common emitter amplifier) to drive a motor. The circuit here look really good but is more complicated that i invisaged it would be. Can you tell me if there is some thing im missing? Thanks, kind regards. Tim | ||
| the circuit work with me well u have to 1-There shuold be a 1 megaohm resistor between pin 3 of IC1 and ground. 2-no r6 3-i test it on cd small motor i donot test it on relay | ||
| I tried it but it dnt worked so please dont waste your money | ||
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