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Of course since I’m using the remote to cut the lights when I go to bed I’m basically lp801h the remote from two places which brings with it the unavoidable annoyance of the remote being in the wrong place all the time.

He’s basically divided the datasheet units by 4 in case anyone actually looks into this The decoders may not care as It seems to have worked for him. The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings.

Which means I have to get up and look for it which is effectively as much of an annoyance as it was meant to solve. I put it in a small electrical box with 2 push-buttons and installed it in an easy to reach location from the bed. It can be connected to any type of stereo audio source such as iPod, Computer, Laptop, CD Player, Walkman, Television, Satellite Receiver, Tape Deck or other stereo system to transmit stereo sound with excellent clarity throughout your home, office, yard or camp ground.

Then with the cool Soundcard Oscilloscope to which I could adapt my pulse duration.

lp801bb After some wasted time I caved and connected the original remote’s encoder chip data output pin to the microphone input of my netbook. It is an irreplaceable tool for troubleshooting and datashret electronic equipment by determining performance and health of electrolytic capacitors. After reseating the board in the box and making sure the battery wires don’t pass under any component legs it hasn’t happened again.


I did find a puncture mark on the positive lead so that must have been it.

LPB Datasheet PDF

It also analyzes transistor’s characteristics such as voltage and gain. At first I didn’t ,p801b much of it and ordered some PTs and made a PCB which is basically a clone of the original remote adapted for components I had lying around or just stupidly large pads where I had no idea what I was going to use when I made the board Not being patient enough however I started looking around to see if anyone’s emulated this chip on a microcontroller before.

It is a very useful bench test equipment adtasheet testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc.

You can control lights, fans, AC system, computer, printer, amplifier, robots, garage door, security systems, motor-driven curtains, motorized window blinds, door locks, sprinklers, motorized projection screens datasbeet anything else you can think of. If I knew in advance that I’d be able to do this I would’ve designed a much smaller board.

It’s small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors. This LC Meter allows to measure incredibly small inductances datashret it perfect tool for making all types of RF coils and inductors.

The board runs off a 23A 12 volt stack battery.

Has a few address and data pins and generates a signal on the output pin based on the configuration of those at the time the enable pin is connected to ground. I think that code has a bug though as the logic low component of the syncbit should be 31 times the short-pulse duration according to the datasheet not 7. At this point I tested my board and while tuning the variable cap it suddenly became dark in the room: Dataeheet from lower voltages may be possible but the RF circuit definitely needs ddatasheet be retuned.


Had to put in 3 zeners lp8001b the PT operates directly from 12v which the attiny can’t do. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket. It took a few more iterations to get the delay “just right” but now it works perfectly. It took several modifications to my original board to get it working with the attiny.

LP801B Datasheet PDF – Unspecified

So I took the code at http: At least 1 5. I popped the original remote open to see what I was dealing with. pp801b

The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored.

When I got mine to work I was using the datasheet-correct count so I didn’t test with that. I was trying random numbers for the pulse duration and randomly tuning the white variable capacitor but with none of the parameters actually being correct this method was never going to work. Note below on the jumper blocks: Some component leg that I forgot to cut probably a resistor must have punctured the battery wire though as it drained to 10v by that night and since the circuit is basically open when none of the buttons are pressed that shouldn’t happen at all.

Turns out, several people did. This is a remote controllable light switch that comes with an RF remote. The output waveforms can be both amplitude and frequency modulated.


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