GS-232A
Computer Control Interface for Antenna Rotators
COM port settings
1200 baud, 8 data bits, 1 stop bit, no parity, no handshake
for 16 MHz crystal
Angles
| angle | relay |
|---|---|
| 0-45 | north |
| 46-135 | east |
| 136-225 | south |
| 226-315 | west |
| 316-405 | north |
| 406-450 | east |
Pinout
| pin arduino | port ATmega328 | name | direction | configure | active |
|---|---|---|---|---|---|
| 2 | PD2 | relay north | out | push-pull | high |
| 3 | PD3 | relay east | out | push-pull | high |
| 4 | PD4 | relay south | out | push-pull | high |
| 5 | PD5 | relay west | out | push-pull | high |
| 6 | PD6 | key north | in | pull-up | low |
| 7 | PD7 | key east | in | pull-up | low |
| 8 | PB0 | key south | in | pull-up | low |
| 9 | PB1 | key west | in | pull-up | low |
| 13 | PB5 | led | out | push-pull | high |