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Even though it makes my job much easier, I would also prefer to be making the pm1872 circuit without using an IC that does everything for me: I’m assuming this forum is the right place to ask these kinds of questions, but if it isn’t I apologize. The chip does a lot, but you still need to provide support circuitry to complete a project.

(PDF) LM1872 Datasheet download

Sorry if this is a newbie question, which it probably is. Last edited by whitecrest; May 04, at Something like thisand shop?

Here is the companion data sheet for the LM transmitter chip. Yeah, forgot to state that I’m looking to be using 27mhz for the datashdet. Images View all Images in thread. Bruce Abbott We want Pin 6 appears to be used to determine the number of transmitted channels in a prospective system.

LM 데이터시트(PDF) – National Semiconductor (TI)

Some of those may have operated at 27mhz. Remember Me Forgot Password? Thanks for informing me about the IC, I’ll definitely be using it for my project. May 06, Theory of operation and suggested circuits are provided in both data sheets. Originally Posted by Magranon. Posting Quick Reply – Please Wait. The Arduino boards can also do that. Any micro-controller having 3 analog inputs and 3 digital outputs can do the job. 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.


However for this receiver attached belowI have no idea what the values dxtasheet B1, B2 or B3 are, nor is it mentioned anywhere on the website the image came from. Return to DIY Electronics. The only criteria 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.

I found a few circuits, but I am a bit unsure about the usage of these ICs. May 04, Images View all Images in dataxheet Views: Welcome to the forum.

Datasheet «LM1872»

Does it even matter what value they datasehet If anyone could point me to any electronic schematics or any useful information in general, I would be extremely appreciative. Even using the IC, it should provide plenty to do. 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.


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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. These devices are well suited for use at 27, 49 or 72 mhz. If you must use discrete components, look up some old Heathkit radio control daasheet.

Thank you for your quick replies!

So, there is not real schematics, but only programming examples. P Having clocks in the circuit would be fine though. Sign up datazheet to remove ads between posts. I’ve been searching for many hours and have yet to come upon any feasible circuits. What do you use as HF transmission? It works in conjunction with a companion transmitter chip, LM, to provide dafasheet channels of control.

Looking for 3 channel circuit diagram. Last edited by Magranon; May 04, at Files View all Files in thread.