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  Topic: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
pizdec

Replies: 16
Views: 41186

PostForum: General CCS C Discussion   Posted: Tue Oct 02, 2018 4:12 am   Subject: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
As a further comment, the HC05, should not work with the 16F877A either,
unless you are either using the LF version of the PIC and running it at 3.3v,
or are using software RS232, rather than the ha ...
  Topic: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
pizdec

Replies: 16
Views: 41186

PostForum: General CCS C Discussion   Posted: Wed Sep 26, 2018 1:42 am   Subject: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
Have you fixed the CPUDIV fuse?. Otherwise the chip will not be running at the speed you expect, so serial will not work.
Also does your voltage shifter module need pull-ups?. Some do. The HC05 shoul ...
  Topic: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
pizdec

Replies: 16
Views: 41186

PostForum: General CCS C Discussion   Posted: Tue Sep 25, 2018 10:27 pm   Subject: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
If you can, post a schematic or just describe in text, as I'm curious as to what the 8 pin DIP chip is doing.

Wireless communications does require proper physical and electrical conditions. Missed ...
  Topic: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
pizdec

Replies: 16
Views: 41186

PostForum: General CCS C Discussion   Posted: Tue Sep 25, 2018 1:54 pm   Subject: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
Yes.

You need a buffer chip between the HC05 and the PIC, or to switch to a 3.3v PIC.

The PIC serial input _requires_ signals to go to 0.8*Vdd to be seen as a '1'. For a 5v PIC, 4v. The HC05 has ...
  Topic: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
pizdec

Replies: 16
Views: 41186

PostForum: General CCS C Discussion   Posted: Fri Sep 21, 2018 12:08 pm   Subject: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
Yes.

You need a buffer chip between the HC05 and the PIC, or to switch to a 3.3v PIC.

The PIC serial input _requires_ signals to go to 0.8*Vdd to be seen as a '1'. For a 5v PIC, 4v. The HC05 has ...
  Topic: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
pizdec

Replies: 16
Views: 41186

PostForum: General CCS C Discussion   Posted: Fri Sep 21, 2018 2:56 am   Subject: [SOLVED]PIC18F4550 + HC-05 module receiving wrong characters
Hi, I'm trying to make a bluetooth communication with a PIC18F4550 through a HC-05 module. Characters are displayed through a LCD 2x16 display.

I've tried with my PC (microsoft store apps), with mo ...
 
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