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Radio control of 10 do-it-yourself teams


In this article, you will see how to do radio control for 10 teams do it yourself. The range of this device is 200 meters on the ground and more than 400m in the air. Pressing the buttons can be done in any order, although all at once everything works stably. With it, you can control different loads: the gate the garageby the light models planes, cars, and so on ... In general, anything, it all depends on your imagination.

For work, we need a list of parts:
1) PIC16F628A-2 pcs (microcontroller)
2) MRF49XA-2 pcs (radio transmitter)
3) Inductor 47nH (or reel yourself) -6pcs
Capacitors:
4) 33 microfarads (electrolytic) -2 pcs
5) 0.1 uF-6 pcs
6) 4.7 pF-4 pcs
7) 18 pF-2 pcs
Resistors
8) 100 ohm-1 pc
9) 560 ohm-10 pcs
10) 1 Kom-3 pcs
11) 1 pc LED
12) buttons - 10 pcs
13) Quartz 10MHz-2 pcs
14) Textolite
15) Soldering iron


Here is a diagram of this device
Transmitter

And the receiver

As you can see, the device consists of a minimum of details and is within the power of everyone. You just have to want it. The device is very stable, it works immediately after assembly. The circuit can be done as on a printed circuit board. And a hinged installation (especially for the first time, it will be easier to program). To start, we make a fee. Print out

AND poison board

We solder all the components, it is better to solder the PIC16F628A with the latest one, since it will still need to be programmed. First, solder MRF49XA

The main thing is very neat, she has very subtle conclusions. Capacitors for clarity. The most important thing is not to confuse the poles on the 33 μF capacitor since it has different conclusions, one +, the other -. Solder all other capacitors as you like, they have no polarity on the terminals


Coils can be used purchased 47nH but it is better to reel yourself, they are all the same (6 turns of 0.4 wire on a 2 mm mandrel)

When everything is soldered, everything is well checked. Next, take the PIC16F628A, it needs to be programmed. I used PIC KIT 2 lite and a homemade socket


Here is the connection diagram

It's all simple, so don't be alarmed. For those who are far from electronics, I advise you not to start with SMD components, but to buy everything in DIP size. I did it myself for the first time


And it all really worked the first time


Open the program, select our microcontroller

Click insert firmware file and click WRITE

Similarly, with another microcontroller.

The TX file is for the transmitter, and RX is for the receiver. The main thing then is not to confuse the microcontrollers. And solder the microcontrollers to the board. After you collect, in no case do not connect the load immediately to the board, otherwise burn everything.The load on the board should be connected through a powerful transistor as in the photo

On the diagram, the LEDs are purely for checking the performance.

Here are the firmware files Rx1.zip [1.46 Kb] (downloads: 3133)

8.7
8
8.6

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24 commentary
No way, this is a discrete. It has 2 states, “on” and “off”, while the server needs a control signal.
I do not want to offend anyone, the author is well done, but discrete control is the last century. Well, that is, yes, it’s okay to open the garage, but it’s possible to control a plane’s model, or even a car ... for a long time all modelers switched to proportional radio control.
interesting article. everything seems simple, but how is it possible to connect a servo drive to it? Need to change the firmware file?
Is there two buttons pressed simultaneously in this circuit, will both commands be executed (if I understood the transmitter and receiver correctly operate at the same frequency)?
Hello Sergey. I looked at your description of the manufacture of the circuit. I have questions for you:
1. Can you send the programmed microcontrollers by mail?
2. Can you send a drawing of the board or a finished board?
Of course, it would be better if the finished products were sent. The ultimate goal is a device for three targets. Sensors are attached to the targets; the signal from them is sent to the remote control by wire. Since the firing is carried out in the forest. wires have to be unwound and rewound each time. It is not comfortable. In order not to waste time on this, I decided to try to use your scheme. ALI Express has similar schemes from Chinese manufacturers. But where is the guarantee that they will work in winter at -20 degrees. The distance to the targets is 100 meters.
Collected. It works in a peculiar way - when a command is issued, the output of the receiver is not a constant voltage, but rather pulses with a frequency of about 10 Hz. Is it software-based or is it some kind of jamb?
This wish can be conveyed to the Author (Blaze). He can make a change in the program (in my opinion for the money). You can order development to the developer for even more money.
Good evening, tell me what changes you need to make to the code so that the 4 buttons work like switches, press the constant signal once, press the second time, the signal is not transmitted?
Quote: To Delusam

But isn't that so; -
10.000 kHz
10 MHz
?

You are absolutely right, but if in the expression "10.0000MHz" the dot is set in the Western manner instead of a comma, then this is also 10 MHz, and 4 decimal places indicate the accuracy of the resonator.
Quote: Ivan_Pokhmelev
If the point is set in a Western manner instead of a comma, then it happens. :)

But isn't that so; -
10.000 kHz
10 MHz
?
Quote: To Delusam
Quote: dimaminakov1991
Do you need a 10.0000MHz quartz crystal ???

Does this happen?

If the point is set in a Western manner instead of a comma, then it happens. :)
Quote: dimaminakov1991
Do you need a 10.0000MHz quartz crystal ???

Does this happen?
Do you need a 10.0000MHz quartz crystal ???
There are no complaints to you, just indicated in the article the author of the scheme. Or did you develop this scheme?
Author
I do not agree, I did everything correctly according to the rules of your site. My photos are unique, homemade work too. I didn’t steal an article from the site
And which transistor to take?
Thanks for the signal - the link to the author of the scheme indicated.
Vidvuduvach
It would be great if you also took off the track printing for LUT.
Dmitry
but how much is it?
Author
no longer how much, not available, all that was dismantled. And I will not do new ones, it became very expensive (((
Sergey, how much will one kit with mailing to Altai Krai cost?
Author
I tried, I can do it if anyone needs
The scarves are very cool smile

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