434 / 315 MHz 8 Channel Secure Remote Control
NEX Robotics Pvt. Ltd.
3
www.nex-robotics.com
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Valid data confirmation output for customization
Kit Contains:
Remote Control Transmitter
Remote Control Receiver
434 MHz ASK Transceiver Module
(soldered on the transmitter and reciver)
Transmitter
Figure 2: 434 / 315 MHz 8 Channel Secure Remote Control Transmitter
Remote control transmitter has 8 switches arranged in 4 + 4 configuration. Each key has
number from 0 to 7 corresponding to its bit number. When a particular key is pressed, bit
corresponding to that number on the reciver will become logic 1. To power up the remote,
give 7 to 12V to the power connector and turn on the power switch. You can also power
remote transmitter using 9V battery. Make sure that security bit settings on transmitter
and reciver are identical. All the security bits of the remote control transmitter and reciver
are factory set at logic 0 or 1.
Low drop voltage regulator is used to down convert supply to 5V from 7to 12V input
supply. Remote is reverse polarity protected. Make sure that transmitter module is
inserted in its socket such that non component side of the transmitter is facing upwards as
shown in the figure.
HT640 encoder chip converts the logic inputs from the switches and the security bit
settings from parallel to serial and transmits it via 434 / 315 MHz transmitter module.
