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So I wanted a second controller that would basically be a stationary switch by my bed so I could leave the portable remote around the desk. I think that code has a bug though as the logic low component of the syncbit should be 31 times the short-pulse duration lp801 to the datasheet not 7. 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.

The building’s basically a 1-room apartment so this works out great with the remote.

(PDF) LPB Datasheet PDF Download – Éî ÛÚ ÊÐ Áª µÂ ºÏ ΢µç×ÓÐÏÞ ¹« ˾ TEL£º Encoder / Decoder

Since the various brands in use have a slightly different logic, it needed some rework to make them compatible. I did find a puncture mark on the positive lead so that must lp801 been it. Working on the AC outlet requires far more care and safety. Had to put in 3 zeners as the PT operates directly from 12v which the attiny can’t do. After some wasted time I caved and connected the original remote’s encoder chip data output pin to the microphone input of my netbook.

Besides, he wanted to be able to manually switch the AC outlet. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils and inductors. If I knew in advance that I’d be able to do this I would’ve designed a much smaller board. I popped the original remote open to see what I was dealing with.

His initial tests showed that the AC outlet and its remote could be revived, so he set about exploring its guts. The output waveforms can be both amplitude and frequency modulated. It’s small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors.


It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors.

The only light switch is across the room from my Op801b and it’s a pretty large room. It also analyzes transistor’s characteristics such as voltage and gain. Of course since I’m using the remote to cut the lights when I go to bed I’m basically using the remote from two places which brings with it the unavoidable annoyance of the remote being in the wrong place all the time.

The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Turns out, several people did. At least 1 5. 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.

These remote AC outlets consist of an encoder chip on the remote and a corresponding decoder chip on the outlet, working at MHz.

So I took the code at http: 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 was trying random numbers for the pulse duration and randomly tuning the white variable lp801n but with none of the parameters actually being correct this method was never going to work. Has a few address and lp8011b 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. It is a very lp801h bench test equipment for 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 and anything else you can think of. The transmit remote was a quick fix — changing the DIP switch selected address bits from being pulled low to high and swapping the On and Off buttons to make it compatible with the other outlets. 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.


The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage lp810b current must lp8011b monitored. Then with the cool Soundcard Oscilloscope to which I could adapt my pulse duration.

I put it in a small electrical box with 2 push-buttons and installed lp081b in an easy to reach location from lp081b bed. Instead, he breadboarded a small circuit around the PIC12F microcontroller to take care of the data and address control. Note below on the jumper blocks: At this point I tested my board and while tuning the variable cap it suddenly became dark in the room: 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.

The relay control from the decoder was routed via the microcontroller. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden lp801v IC socket. It took several modifications to my original board to get it working with the attiny.

original new LP801B

When I got mine to work I was using the datasheet-correct count so I didn’t test with that. It took a few more iterations to get the delay “just right” but now it works perfectly. Running from lower voltages may be possible but the RF circuit definitely needs to be retuned. Headphone amplifier is small enough to fit in Altoids tin box, and thanks to low power consumption may be supplied from a single 9V battery.

At first I didn’t think 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.

Working on it when it is powered up requires extreme caution. The board runs off a 23A 12 volt stack battery. This is a remote controllable light switch that comes with an RF remote.