3.1.4
Serial connector
The serial connector contains various serial lines. One serial line which is at
TTL level (0V/+5V) is used to connect a personal computer to the Khepera
III dsPIC (with a KoreConnect). Used only when there is no KoreBotLE
connected. Please see section 4.2.
There is another RS232 (-10V/+10V) used to communicate with the
KoreBotLE, ie to see the KoreBotLE’s boot message. Please see section
4.3.
It is also possible to use the USB link of the KoreConnect to communicate
with the KoreBotLE.
The length of the serial cable should be limited to two meters
for proper operation.
11
9
5
3
1
7
12. GND
11. GND
7. USB D−
8. USB D+
1. Korebot RXD
2. Korebot TXD
3. dsPIC RXD
4. dsPIC TXD
6. VCC ( +5V )
12
10
8
6
4
2
Figure 3.3: Details of the Khepera III serial connector. Pin 5, 9 & 10 are
not connected.
Khepera III manual ver 2.2
9