TUTORIAL no 7 (UART)

Another simple tutorial showing you a simple UART communication between the demo board and the mikroC USART terminal.

For more info,
http://pic16f887boardfordummies.blogspot.com/

Category:

Howto & Style

Tags:

• PIC16f887
• Demo
• board
• MikroC
• UART

[Galal0110]

awesome video :) but I got a question, can u provide the complete hardware connections? is it EXACTLY the same as connections in mikroC help? thnx

[nicox666ful]

@Galal0110,

I used a cheap USB to Serial cable ($2.5) because I am using a laptop. I connect it to a MAX232 then to the RX/TX of the PIC16F887. The power of the demo board is from the cable (USB port).

[Galal0110]

@nicox666ful Thanks for the reply. Me too I am using a USB to serial cable. However, I meant the set-up of max232, is it the same on mikroC help? because when I insert the capacitors of max232, my readings from a temperature sensor become unstable.( weird huh?).

[nicox666ful]

@Galal0110,

Are you sure the power for the max232 is at the appropriate pins? Yes I followed the schematic example from mikroC help file. Better to try a loop back test to your max232 and cable connection.

[Galal0110]

thnx very much mate. I found the problem. I followed the schematic again but it was fine. The problem was in the coding. I wanted a variable to be sent to RS232, so I needed only the UART_Write_text command and not the read command. I thought that I must read a value then write it. However, if the value is already saved in a variable,u can send that variable directly without the need to read it. Thnx again and amazing video, u might want to add this to it. I see alot of ppl needing this info.