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The MKFR is a Key Fob Receiver/Decoder shield compatible with Linx Technologies MS Series Key Fob Transmitters operating at 418/433MHz (1, 2, 3, 4, 5, 8-Button Transmitters Available Separately).
This device is capable of receiving button presses from a remote control up to 750 feet away (when using the 8-Button remote). When a remote control button is pressed, the on-board Valid LED illuminates. In addition, Arduino Micro I/O lines are asserted High for the duration of the remote button press. Arduino Micro I/O lines return to a low state when the remote control button is released. Includes RP-SMA Antenna.
The On-Board LICAL Key Fob Decoder is Mapped to the following Arduino Micro Pins:
Key Fob Button 0 is Connected to Arduino Micro D4
Key Fob Button 1 is Connected to Arduino Micro D5
Key Fob Button 2 is Connected to Arduino Micro D6
Key Fob Button 3 is Connected to Arduino Micro D7
Key Fob Button 4 is Connected to Arduino Micro D8
Key Fob Button 5 is Connected to Arduino Micro D9
Key Fob Button 6 is Connected to Arduino Micro D10
Key Fob Button 7 is Connected to Arduino Micro D11
Key Fob Signal Strength RSSI is Connected to Arduino Micro A0
Key Fob Transmitter ID is Connected to the Arduino Micro RX
NOTE: Key Fob remotes are security encrypted, and must be paired with the controller prior to use. This is an Overlay Shield and does NOT directly plug into the Arduino Micro. This Overlay Shield REQUIRES a NCD controller with Double-Row (or larger) Headers on Each Side of the Arduino Micro module interface. To use an overlay shield, Arduino Micro is plugged into a NCD controller, which has two (or three) rows of pins on each side of the Arduino Micro module. This shield installs over the top of the Arduino Micro, using the outer set of pins of the NCD controller to make contact with the Arduino Micro module. Please examine photos carefully to see how overlay shields are installed.
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