NUC140 Serial Communication

In this project, we will be making a communication between Arduino and Nuvoton NUC140 which transfer vital information by sending data one bit at a time.

Serial communications are essential for every Micro-controllers to communicate between Micro-controllers and another device. The Micro-controller sends these 1 and 0 (bits) that contain necessary information one by one, or Serially. These bits form together and turn into bytes (composed of 8 bits). For further information, check it out sparkfun binary tutorials.

It’s a fairly easy project and can be used either on its own or part of something bigger (check it out >> Automatic Weather Station).

For this project, we will be using:

- Arduino boards (mine Arduino Uno Rev3)

- Nuvoton NUC140

- Jumper Wire

In common, the connections are fairly easy. Just connect Arduino Transmitter (TX) to Nuvoton Reciever (PB0) with jumper wire, connect both GND (Ground)* and you should have no problems.


*P.S. Grounding is an essential factor for serial communication (make sure the high binary voltage is 5V)

Below is the Nuvoton Serial Communication code. Upload Serial_test.ino code to your Arduino (Mine Arduino Uno Rev3) , NUC140-Ardu.c code to Nuvoton (Check it out how to upload the code >> Introduction to Nuvoton NUC140), and you should have no problems.

You can clone and edit the code in any way you prefer.

After making sure that everything works smoothly, you can take this project into bigger project (check it out >> Automatic Weather Station)!

Power through batteries or a plug and you’re good to go!