Connection To The Mouse Control
USB Mouse
USB jack | Projector |
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2 | 1 | +5V | 1 | 1 | +5V | (A type) |
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| +DATA | 3 | 3 | +DATA |
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3 | 4 | GND | 4 | 4 | GND | 1 2 3 4 |
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RS-232C Communication
Connecting The Cable
(1)Turn off the projector and the computer power supplies.
(2)Connect the CONTROL port of the projector with a
(3)Turn on the computer power supply and after the computer has started up, turn on the projector power supply.
Projector |
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CONTROL |
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| 1 | 1 | CD |
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| RD 2 | 2 | RD |
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| TD 3 | 3 | TD |
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| 4 | 4 | DTR |
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9 | 8 | 7 | 6 | 6 | 7 | 8 | 9 | GND 5 | 5 | GND | 5 4 | 3 | 2 | 1 | 1 2 | 3 | 4 | 5 | |
5 4 | 3 | 2 | 1 | ⇔ 1 2 | 3 | 4 | 5 | 6 | 6 | DSR | 9 | 8 | 7 | 6 | ⇔ 6 | 7 | 8 | 9 | |
RTS 7 | 7 | RTS | |||||||||||||||||
CTS 8 | 8 | DTS | |||||||||||||||||
9 | 9 | RI | |||||||||||||||||
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Communications Setting
19200bps, 8N1
1. Protocol
Consist of header (7 bytes) + command data (6 bytes).
2. Header
BE + EF + 03 + 06 + 00 + CRC_low + CRC_high
CRC_low : Lower byte of CRC flag for command data
CRC_high : Upper byte of CRC flag for command data
3 Command data
Command Data Chart
byte_0 |
| byte_1 | byte_2 |
| byte_3 | byte_4 |
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Action | Type |
| Setting code | |||||
low |
| high | low |
| high | low |
| high |
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Action (byte_0 - 1)
Action | Classification | Content |
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1 | SET | Change setting to desired value. |
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2 | GET | Read projector internal setup value. |
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4 | INCREMENT | Increment setup value by 1. |
5 | DECREMENT | Decrement setup value by 1. |
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6 | EXECUTE | Run a command. |
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5