6 Channel RF Remote Control
Posted on Mar 6, 2013 11385
Under: Remote Control Circuits
This project creates a simple but valuable a wireless remote controller. He has as many as 6 channels (a rare feature for remote business) and transmits encoded MM53200 , UM3750 or UM86409 . Of course you can omit the button and make such a 2-channel remote control. It 'a pairing perfect for Nutchip , and is easy to build home-why do not you use special components: even the battery is a common 9-volt battery found in all supermarkets. This diagram illustrates a remote fixed codes , ready to work immediately without adjustments. but plan appropriately the chip, you can also get codes like making a simple change.
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The remote is powered by a battery of 9 volts, connected to the terminal ends of the M1. The negative terminal of the battery goes to "mass", while the positive comes in integrating IC2 , which stabilizes the voltage to 5 volts. IC2 78L05 is equivalent to the more common, but has a much lower consumption making it ideal for battery applications .. The heart of the remote control is IC1, a PIC16F84 microcontroller, the legendary American company integrated Microchip . With the software (free!) we have developed the PIC becomes a basis for universal remote controls, in which each leg has a specific function. The keys are always connected between pairs of pins such as " COL "and" ROW : we will use 6 on 16 routes, leaving Col4, ROW3 and ROW4 disconnected. A simple network delay (R1, C1) provides the RESET power. The power to reach 5Volt IC1 through the legs 14 (+5 V) and 5 (ground). The capacitor C2 (weld as close as possible to the pin of IC1) clears any feeding problems. The clock is generated by OSC1, a ceramic resonator 4MHz 3-pin: to use to use a quartz (2 feet), you add two small capacitors as shown in the diagrams of the base Nutchip. The foot DEFAULT (2) set to +5 volt select pre-stored codes, and the foot RF (3) shows the chip in the radio mode. The foot LED (17) driver LD1 is turned on whenever you press a button. The pulses for the transmitter out of the pin OUT (18) and go to TX1, a transmitter module to the...