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Does it even matter what value they are? Images View all Images in thread. Here is the companion data sheet for the LM transmitter chip.

Sign up now to remove ads between posts. May 04, Looking for 3 datashwet circuit diagram. Something like thisand shop?

Remember Me Forgot Password? If anyone could point me to any electronic schematics or any useful information in general, Datashdet would be extremely appreciative.

LM1872 Datasheet PDF

Bruce Abbott We want The Arduino boards can also do that. Pin 6 appears to be used to determine the number of transmitted channels in a prospective system. P Having clocks in the circuit would be fine though. Return to DIY Electronics.

LM Datasheet(PDF) – National Semiconductor (TI)

Yeah, forgot to state that I’m looking to be using 27mhz for the build. Theory of operation and suggested circuits are provided in both data sheets. What do you use as HF transmission?

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These devices are well suited for use at 27, 49 or 72 mhz. Thank you for your quick replies! Images View all Images in thread Views: 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.

Posting Quick Reply – Please Wait. So, there is not real schematics, but only programming examples. Even using the IC, it should provide plenty to do. Welcome to the forum. It works in conjunction with a companion transmitter chip, LM, to provide four channels of control. I’m assuming this forum is the right place to ask these kinds of questions, but if it isn’t I apologize.

Originally Posted by Magranon. Any micro-controller having 3 analog inputs and 3 digital outputs can do the job. Some of those may have operated at 27mhz.

Last edited by Magranon; May 04, at 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 only criteria of the build are lm172 it should preferably dztasheet 3 channels and that it must be able to control the rotation of two servos and the speed of the main motor.

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.

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Looking for 3 channel circuit diagram – RC Groups

I found a few circuits, but I am a bit unsure about the usage of these ICs. 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. Sorry if this is a newbie question, which it probably is. Thanks for informing me about the IC, I’ll definitely be using it for my project.

Datasheet «LM1872»

Last edited by whitecrest; May 04, at Files View all Files in thread. I’ve been searching for many hours and have yet to come upon any feasible circuits.

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: The chip does a lot, but you still need to provide support circuitry to complete a project.

If you must use datazheet components, look up some old Heathkit radio control circuits. May 06, ,