User's Manual

Fireplace new platform product specification
Copyright © 2014 Computime Limited. All rights reserved. Rev. 1.2
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3.2.6 Battery: AA * 4 Alkaline battery for receiver power supply. The four AA battery lifetime
should be enough to perform at least four operations ON and OFF in a day for minimum 240 days.
The low battery monitoring circuit should indicate the low battery condition at 3.9V. The fireplace
should shut down completely and receiver should not accept any command form transmitter once
battery drops below 3.9V for four AA batteries, LED will flash every 60 second until battery totally
drains out.
3.2.7 LED indication: The receiver should provide the indication when it receives and decodes the
commands from transmitter correctly. The on-board LED should be implemented to perform this
function.
3.2.8 Six Hour Shutdown: The receiver should be shut down completely six hours later if it does
not receive valid command from transmitter. No shutdown is required when slide switch is at ON or
OFF position.
3.2.9 A 5Pin programmer port should be used for online programming.
4 RF Specifications
350MHz RF frequency
More than 30 feet RF Range
5 RF protocol & commands
The following protocol defines the wireless control commands for the fireplace. All commands must
follow the protocols.
5.1 Code description
5.1.1 Each command consists of 4 start bits, 4 address bits and 8 data bits
5.1.2 The transmitted sequence is as follows:
S0 S1 S2 S3 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
S0 - S3 start bits.
A0 - A3 specified by on-board dip switch. A3: MSB, A0: LSB
D0 - D7 command bits are defined by the following tables:
5.1.3. Commands:
Items Command Command, Hex Function
1010xxxx00000000 Ax00 Off
1010xxxx00000001 Ax01 On
1010xxxx01010000 Ax50 After reset