TIMEOUT in same position every time on large HTTP header

[aimass]

Hi there,

Environment:

• ESP8266 Grove UART with SDK 1.1.0
• Arduino Uno R3
• Grove powered by the UNO 3.3V line and level shifters between the UNO lines and the Grove TX/RX
• WiFiEsp 2.2.2
• Software Serial on D7 and D8

Trying to implement a simple HTTP client but as I am reading the return stream it always gets a TIMEOUT: 36 and it's always at the same position 36. By doing some debugging it seems to be choking on this large header sent by Arduino Yun server:

Set-Cookie: sysauth=ed6f0055d4e0c4609b5917b2e07e90ef; path=/cgi-bin/luci/;stok=159f7efc71fc95e37b326445cd17768d

So is it possible that either the ESP8266 firmware or WiFiEsp is having some issue with this large header ?

Also, not sure if related, but the only way I could get the module to initialize is by doing this (which seems to contradict all the example code):

wifiLink.begin(115200);
WiFi.init(&wifiLink);
wifiLink.println("AT+UART_CUR=9600,8,1,0,0");
wifiLink.end();
wifiLink.begin(9600); 

TIA,

-- Alex

[JAndrassy]

if you update the AT firmware to 2.7.5 (SDK 3.0.5), then you can use my newer WiFiEspAT library

[aimass]

@JAndrassy thanks for your prompt reply!

I was trying to avoid firmware update because this little project was supposed to be a simple hack using this old Grove I had laying around for some time, and just wanted to finally use it.

But it's getting too complicated for the time I can spend on it, so decided to buy an Arduino WiFi to finish the job.

Having said this, and since I wired the level shifter and the prototype came out really nice, I would like to solve the issue and re-use this prototype in a future project ;-)

I'll try the update sometime in the future and I will follow up on this thread eventually.. closing for now.

Thanks again,

-- Alex