| The IR Remote Control Board |
The Remote control board will have the following features:
Generic IR remote input decodes widely used Sony protocol and Philips RC5. Use
any universal remote. We found a decent remote at radioshack that cost 6.99.
Optrex LCD display (20X2) on PCB.
RS-232 interface allows software updates via your PC. We may allow a
wired remote.
ICD2 interface allows for DIY Microchip programmers who want a custom interface
Two PCB mounted rotary encoders with integrated switches will provide control.
One will be for input selection, while the other will be for volume and user
interface control. We have picked out a nice optical encoder (Grayhill 61C)
There will be several switch inputs if one would rather have them for
functions such as HT bypass, mute, and a power standby mode. Two switches will
be to the right of the volume encoder, while one switch will be to the left of
the input select encoder.
For the standby feature, an opto-isolated darlington output will be available.
This opto can be used to control an external relays or circuit to manage power
for other components. The device can sink 200mA at 35V
This board will communicate over an I2C bus to the input and volume relay
boards.
The following features are built into the firmware
1) LCD contrast
2) LCD brightness
3) Display Text for Inputs/Splash
4) Enable/Disable Standby
5) 'Power" on remote is Standby or Mute
6) Disable Splash
7) Volume increment for speed control
8) Come up set to last input (Yes/No)
9) Come up in last Volume (Yes/No)
10) Input offsets - -60 to +60 (volume levels) - adjusts volume based on offset
when input changes
11) Channel offsets - -60 to 60 (not implemented yet)
12) Channel types (single ended or balanced for APOX-1).
13) Last channel (if you don't want the unit to go to a channel above a number)
14) Remote rollover rate (implemented in control, not on display yet)
General features:
1) LCD display of input, volume, splash
2) Encoders for selecting volume/inputs
3) IR remote control supports Sony and Philips RC5 protocols:
A) Up/Down channel
B) Up/Down volume (rollover rate programmable, also
uses volume increment number)
C) Keypad number (1-8) direct to channel
D) Mute (Mute button or 'Power')
E) HTBP (Home Theater Bypass mode)
4) Volume control features speed acceleration if encoder turned rapidly
5) Standby mode, opto isolated darlington output to control external relay
6) Switch inputs for local mute and htbp.
7) RS232 for software updates
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