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This time the thing and a little more complicated THE wireless unit at a cost Max 20 € Below you enclosed documentation to the assembly, good luck.

Example like ..

What should: 1) a small machine or motorcycle remote that we find in every hypermarket for the beauty of € 9,90 (or less) nr. 2 boxes for electrical assembly) 3-pin jack female panel, led nr.2 diodes (one red one green), nr.1 relay, nr 2 switches from panel type lever and nr 3 jack males, nr 2 by radio antenna transistor, to finish nr 2 contact for a 9-volt battery ... a minimum of manual and a modest knowledge of electronics .. Usually the machine works this way, the remote means of a button closed / opened launches a signal that is received by the receiver placed on self; which receiver signal that makes the switch current motor running… in the model that I found I exist 2 buttons and the second as a reward you change the polarity of the current paid to making motor so turn in one direction or another… for our purposes because we're going to connect the buzzer to the recipient and that the buzzer has the polarity + and -- Fixed we have to choose one position since the other not sound the buzzer.

Part transmitter

Get off the radio control of small machine or motorcycle and take away the receiver circuit and the circuit transmitter; normally the transmitter circuit is composed of a circuit which leaves an antenna; two wires that go to the stack of power (one that goes to black - and a red which goes to +) and a switch (or more than one) which is connected to a button so that pushing close contact and the transmitter sends a signal: Ex type: instead of breakers on / off going to settle nr .3 Jack female and connect series then we will connect the red to contact A transmitter and the black contact B transmitter (here, however, the polarity has no great importance that's why you can connect the red even at B and also black to A.. in any event before making the final welds first try in a "wheel"). Virtually with the transmitter you are done .. What happens .. at the time that the detector sounds, this will send an electrical impulse to A / B by closing the circuit which in turn will activate the transmitter, which then To Air will launch an impulse radio.

Receiving Party

Getting of the small machine have made a circuit. Where originally the impetus received from your activated the circuit which gave power to the motor through contacts A and B; going to connect the buzzer. Tente that a second pressure will value received A and B + value - are you trying to understand if the momentum you have chosen to be as value to A + or how - because it is based on this we're going to connect the buzzer or beeper. We will modify the circuit including a color Green led with the aim to be turned on when the buzzer is activated (indicates the bait visually!); A switch lever: panel on the link of the stack where the pole is hot (positive) and a red led we will need to understand if we turned on or less everything! and evitarci to consume batteries unnecessarily. At this point we should connect the buzzer: to A and B according to polarity choice (otherwise it sounds!)… We recommend a piezoelectric buzzer panel because it makes a discreet noise .. You have not finished There remains that test everything and insert circuits inside 2 boxes to oc perhaps drowning, one circuit tx in silicon to withstand the weather .. Although careful to say it is unnecessary because the polarities are important and diode LED lights only in a position that is when his attack anode is the positive and its cathode the negative .. I hope to have been clear to any questions, please contact me.

Hello Max