send with PT2262 and read with PIC16F628

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turkbey

Newbie level 4
pt2262 exampel

Hello dear friends.
I want to make a new project but, have some unknown.
I have a transmitter module 433,92 Mhz rf module and PT2262 encoder I send any data and adress word. than I want to use rf receiwer modules 433,92 and PIC16F628 for decoding.
So how can I read from PT2262 IC's datas whith PIC16F628
Thanks for all

andre_teprom

Super Moderator
Staff member
pic16f628,433,92

I used it, a long time ago.

You could eliminate this IC, and send data directly by a power RF transistor. But, if you want use it IC, you could do it like I did :

Use the last 4 bit's of adress of PT2262 to send the nibbles of each byte, half-byte to half-byte, each time you send data.

At Receiver side, the IC must be the PT2262-M4/L4, because it part ( ....M4/L4 ) decode 4 data bits. So, in order to improve data security, due enviroment may contain noise, I sent a character marker between each data. In case, I used the 0xC ( 1010b )

In case, I used BCD codification ( data range : 0....9 ). So if I wont send for example a character sequence 'A','B','C', for example, I had to send :

Code:
0100 1010 0001 1010 0100 1010 0010 1010 0100 1010 0011
4      C     1        C     4      C     2       C      4      C     3
Due :

Code:
0100 0001 = 'A' = 0x41
0100 0010 = 'B' = 0x42
0100 0011 = 'C' = 0x45

It worked very well, but I used an integrity algoritym to verify integrity of received data.

+++

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