Matrix Orbital DD-DB1 LCD/VFD Dev Board - Manual (Page 8)

Serial
Cables Required ACPC, CSS4FT
1 2 3 4 5 6 7 8 9 10
X X X
X X X X X X X
Table 4: RS232 Protocol Select
Serial protocol provides a classic alternative the the USB method listed above. Two additional cables are required for this
connection; the 4 ft serial cable and AC power adapter. These must be purchased in addition to the DevDevil kit. This set
up will provide constant regulated power to your development board and provide a familiar communication scheme. To
place your board in Serial mode, just adhere to the steps laid out below.
1. Prepare the onboard jumpers.
i. Select Input Power on the Input Select jumper, see highlight 6 in Illustration 2: DevDevil Basic Connections..
ii. Remove the Voltage Select jumper, see highlight 7 in Illustration 2: DevDevil Basic Connections..
2. Set the Protocol Select switches.
i. Place the unit into Serial protocol by moving switches 1, 2, and 3 up into the on position, while ensuring the
remainder are down in the off position, see highlight 5 in Illustration 2: DevDevil Basic Connections..
3. Make the connections.
i. Insert the male end of your serial cable into the corresponding header on the unit and mate the female
connector with the desired communication port of your computer, see highlight 3 in Illustration 2: DevDevil
Basic Connections..
ii. Place the output power plug of your AC power adapter into the onboard barrel jack and connect the business
end of the device into an available wall socket, see highlight 4 in Illustration 2: DevDevil Basic Connections..
4. Create.
i. Again, uProject or hyperterminal will get started, then move on with your own development. Instructions for
the former and a simple C# example is available for the latter can be located in the Software section.
6
Illustration 4: RS232 Connection