User manual

EXTERNAL CONNECTORS DESCRIPTION:

UEXT:

Pin # Signal Name

1 VCC

2 GND

3 TXD

4 RXD

5 SCL

6 SDA

7 Not connected

8 Not connected

9 SCK

10 #SS

RS485:

Pin # Signal Name

1 VCC

2 100 Ohm pull-

down resistor

3 A

4 B

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