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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.

What do you use as HF transmission? Some of those may have operated at 27mhz. Images View all Images in thread. Sign up now to remove ads between posts.

Datasheet «LM1872»

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. I found a few circuits, but I am a bit unsure about the usage of these ICs. Originally Posted by Magranon.

Yeah, forgot to state that I’m looking to be using 27mhz for the build. Remember Me Forgot Password?

If anyone could point me to any electronic schematics or any useful information in general, I would be extremely appreciative. May 06, If you must use discrete components, look up some old Heathkit radio control circuits.


Images View all Images daatasheet thread Views: Thanks for informing me about the IC, I’ll definitely be using it for my datashset. I’m assuming this forum is the right place to ask these kinds of questions, but if it isn’t I apologize. 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.

LM1872 Datasheet PDF

The only datasheeh of the 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.

Return to DIY Electronics. Looking for 3 channel circuit diagram. Theory of operation and suggested circuits are provided in both data sheets.

LM datasheet, Pinout ,application circuits Radio Control Receiver/Decoder

Last edited by Magranon; May 04, at Sorry if this is a newbie question, which it probably is. Originally Posted by Magranon 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. The Arduino boards can also do that.

Welcome to the forum. 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: So, there is not real schematics, but only programming examples. Here is the companion data sheet for the LM transmitter chip. May 04, Bruce Abbott We want Posting Quick Reply – Please Wait. Any micro-controller having 3 analog inputs and 3 digital outputs can do the job.


These devices are well suited for use datasheer 27, 49 or 72 mhz. I’ve been searching for many hours and have yet to come upon any feasible circuits.

P Having clocks in the circuit would be fine though. Does it even matter what value they are? Thank you for your quick replies! Even using the IC, it should provide plenty to do. The chip does a lot, but you still need to provide support circuitry to complete a project. Files View all Files in thread. Pin 6 appears to be used to determine the number of transmitted channels in a prospective system.

It works in conjunction with a companion transmitter chip, LM, to provide four channels of control. Last edited by whitecrest; May 04, at Something like thisand shop?