TTL – RS232 converter circuit TTL – USB converter circuit But if you want to build your own, use the below circuits. TTL – RS232 or TTL USB converter modules can be easily purchased. Also, you may directly use a TTL to USB converter. If your PC doesn’t have a DB9 port, you might want to use an RS232 to USB converter. This can be achieved using a DB9 connector. which is a level translator that helps the PIC Microcontroller to connect with a PC using RS-232 telecommunications standard. In this tutorial, we learn to Enable the inbuilt hardware module for UART in PIC16F877A Microcontroller and how to communicate with your Computer using the UART protocol.įor this, we will use an IC called MAX232. Serial communication using a Microcontroller is one of the easiest operations to learn on a microcontroller and it comes into use in almost every application. A universal asynchronous receiver-transmitter is a hardware module for asynchronous serial communication in which the data format and transmission speeds are configurable.
