USB to TTL (RS232) Module

 

The primary use of this USB to TTL module is uploading program to the robot car. Secondly, it helps communication between robot car and a personal computer via the UART interface. The wifi modules can also be connected to PC through this device.

Uploading program

When connecting to UART of robot car, use the 3.3 volts line.

Connecting to UART 2

 

Connecting to UART 3

Connecting to HC-05 / HC-06

The input voltage of the WiFi modules is 5 volts.



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