ROBOT . HEAD to TOE
Product User’s Manual –
Shield-Servo
UART/UC00A/UC00C Pins Function Description
Label
Definition
Function
DTR
RESET Pin via
0.1uF capacitor
Connected to shield-servo controller’s reset pin via 0.1uF
capacitor. Suitable to act as software reset.
TX
UART
Transmit Pin
Connected to Shield servo receive pin. It should be
interfaced to 5V logic UART. It should be connected
to host’s transmit pin.
RX
UART
Receive Pin
connected to Shield servo transmit pin. It should be
interfaced to 5V logic UART. It should be connected
to host’s receive pin.
VSEL
System 5V
Should be supplied from UC00A/UC00C. It is to power the
shield servo controller.
CTS
NC
Not connected to any pin.
GND
System Ground
Common ground for both logic operation and also
Servo power source.
Absolute Maximum Rating
No Parameter
Max
Typical
Min
Unit
1
VM Voltage
25
-
7
V
2
VM Current
5
-
-
A
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