- Tue Sep 22, 2015 7:47 pm
#29681
Hello, how are you?
I currently have a project that I would like to replace the USB connection with Wi-Fi connection. With the USB connection, once you plug it to the computer, a new COM port is listed and then the windows software can communicate with it using RS232, so sending usigned char (ranging from 0 to 255) byte arrays is very easy. It uses a PIC24F with USB module, so everything is pretty straightforward.
I bought a few ESP8266 modules and I have been playing around with it. I would like to ask you to please point me to the right direction of which way would be best for this data intensive application, that I need to be constantly sending and receiving data?
It needs to leave an "open bridge", for example, once it is connected, I can transfer data without having to send HTTP headers eve
1) Is it possible that I can transfer data without having to send HTTP headers every time? An "open bridge" sort of thing. Correct if I'm wrong, but I think to do that I should use TCP or UDP protocol? Where do I get started? Reading material is very welcome.
2) Is it possible to transfer arrays of bytes ranging from 0 to 255? I tried transfering bytes after the HTTP headers, but of they were 0 or bigger than 127, it would get stuck, because it violates text encoding rules I suppose.
3) What kind of speed in KB/s can I expect? With the USB I transfer chunks of 128 Bytes quickly. The full EEPROM is 32 KB.
4) Should I code ESP8266 chip from scratch or is there a way to use something like the AT command, Nodemcu or what?
Any advice will be highly appreciated.
Thank you!
Fernando
I currently have a project that I would like to replace the USB connection with Wi-Fi connection. With the USB connection, once you plug it to the computer, a new COM port is listed and then the windows software can communicate with it using RS232, so sending usigned char (ranging from 0 to 255) byte arrays is very easy. It uses a PIC24F with USB module, so everything is pretty straightforward.
I bought a few ESP8266 modules and I have been playing around with it. I would like to ask you to please point me to the right direction of which way would be best for this data intensive application, that I need to be constantly sending and receiving data?
It needs to leave an "open bridge", for example, once it is connected, I can transfer data without having to send HTTP headers eve
1) Is it possible that I can transfer data without having to send HTTP headers every time? An "open bridge" sort of thing. Correct if I'm wrong, but I think to do that I should use TCP or UDP protocol? Where do I get started? Reading material is very welcome.
2) Is it possible to transfer arrays of bytes ranging from 0 to 255? I tried transfering bytes after the HTTP headers, but of they were 0 or bigger than 127, it would get stuck, because it violates text encoding rules I suppose.
3) What kind of speed in KB/s can I expect? With the USB I transfer chunks of 128 Bytes quickly. The full EEPROM is 32 KB.
4) Should I code ESP8266 chip from scratch or is there a way to use something like the AT command, Nodemcu or what?
Any advice will be highly appreciated.
Thank you!
Fernando
