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Here is the companion data sheet for the LM transmitter chip. Posting Quick Reply – Please Wait.

Radio Control Receiver/Decoder

However for this receiver attached belowI have no idea what the values of B1, B2 or B3 are, nor is it mentioned anywhere on the website the image came from. Bruce Abbott We want Remember Me Forgot Password? Return to DIY Electronics. Thanks for informing me about the IC, I’ll definitely be using it for my project. Yeah, forgot to state that I’m datashewt to be using 27mhz for the build. Thank you for your quick datasheeg Theory of operation and suggested circuits are provided in both data sheets.

These devices are well suited for use at 27, 49 or 72 mhz. The Arduino boards can also do that. If anyone could point me to any satasheet schematics or any useful information in general, I would be extremely appreciative. Something like thisand shop? I found a few circuits, but I am a bit unsure about the usage of these ICs.


I’m assuming this forum is the fatasheet place to ask these kinds of questions, but if it isn’t I apologize. May 04, The chip does a lot, but you still need to provide support circuitry to complete a project.

Originally Posted by Magranon. May 06, Pin 6 appears to be used to determine dataeheet number of transmitted channels in a prospective system. P Having clocks in the circuit would be fine though. Sign up now to remove ads between posts.

Looking for 3 channel circuit diagram – RC Groups

Any micro-controller having 3 analog inputs and 3 digital outputs can do the job. It works in conjunction with a companion transmitter chip, LM, to provide four channels of control. Welcome to the forum.

So, there is not real schematics, but only programming examples. If you must use discrete components, look up some old Heathkit radio control circuits. Does it even matter what value they are? I have no idea what the values of B1, B2 or B3 are, nor is it mentioned anywhere on the website the image came from. Originally Posted by Magranon I dataheet no idea what the values of B1, B2 or B3 are, nor is it mentioned anywhere on the website the image came from.



LM Datasheet, PDF – Alldatasheet

Files View all Files in thread. Some of those may have operated at 27mhz. Even though it makes my job much easier, I would also prefer to be making the whole circuit without using an IC that does everything for me: Even using the IC, it should provide plenty to do.

I’ve been searching for many hours and have yet to come upon any feasible circuits.

(PDF) LM1872 Datasheet download

The only criteria of km1872 build are that it should preferably have 3 channels and that it must be able to control the rotation of two servos and the speed of the main motor. Images View all Images in thread Views: Images View all Images in thread. Last edited by Magranon; May 04, at What do you use as HF transmission? Last edited by whitecrest; May 04, at Looking for 3 channel circuit diagram Hey everyone, I’m looking to build a simple RX and TX with encoder and decoder from scratch for an upcoming RC plane project.

Looking for 3 channel circuit diagram. Sorry if this is a newbie question, which it probably is.