Sending Images to RS232

[Pesticida]

Hi,

Did some one have a Idea how I can Read and Send a little JPG Image ~ 80KB trough RS232 Interface.

Thanks for any Information.

Regards Pesti

[BigWumpus]

Via X-, Y- or ZMODEM ?

You are free to define your own protocol...

[skimask]

Did some one have a Idea how I can Read and Send a little JPG Image ~ 80KB trough RS232 Interface.

SEROUT, SEROUT2, DEBUG, and so on...

[Jerson]

I will second BigWumpus on the protocol part. However if you are not game to do it that way, you can take a chunk of 16 bytes, checksum it and send. When received, ack/nak the chunk to decide whether to move on. This may be far simpler to implement.

[Pesticida]

Hi,

My Idea is to capture frome some Digital Kamera a Picture and than to Read with the Microcontroller and to send via Gprs Modem.

Thanks

regards Pesti

[skimask]

My Idea is to capture frome some Digital Kamera a Picture and than to Read with the Microcontroller and to send via Gprs Modem.

How long do ya suppose this will take?

[Ron Marcus]

A file is a file. Whether a .jpg, or text, you need to know where it is, how long it is, and the destination. You need horsepower, and 32 bit math. I sent pictures from an SD card, to an SD card wirelessly. It took a while at 115Kbaud. GMRS has limited bandwidth.

[Pesticida]

Hi,

How long do ya suppose this will take?

Something between 10-40 Seconds Sending and ~ 80 KB.

For the moment I want to use this Resolution 640X480 Pixel.

Regards Pesti