I have been trying for 2 days to find a solution to this 400 error. Before I just got 408 and I managed to sort that out and now I get an 400. I'm using these commands through the Serial Monitor. The Arduino Sketch is Blank and every time i try to write code using Serial.println or using "SoftwareSerial.h" liberty i get the print in the serial monitor but my ESP8266 does not respond to the code
AT
OK
AT+RST
OK
ets Jan 8 2013,rst cause:4, boot mode:(3,0)
wdt reset
load 0x40100000, len 212, room 16
tail 4
chksum 0x5e
load 0x3ffe8000, len 788, room 4
tail 0
chksum 0x1c
load 0x3ffe8314, len 72, room 8
tail 0
chksum 0x55
csum 0x55
jump to user1
ready
AT+CIPSTART="TCP","apexmorphs.co.uk",80
OK
Linked
AT+CIPSEND=70
> GET /inc/cron/tank.php?temp=30\r\n HTTP/1.0\r\n Host: apexmorphs.co.uk\r\n
busy s...
SEND OK
+IPD,187:HTTP/1.0 400 Bad request
Cache-Control: no-cache
Connection: close
Content-Type: text/html
<html><body><h1>400 Bad request</h1>
Your browser sent an invalid request.
</body></html>
OK
OK
Unlink
AT+CIPSTART="TCP","http://apexmorphs.co.uk",80
DNS Fail/r/nAT+CIPSTART="TCP","apexmorphs.co.uk",80
OK
Linked
AT+CIPSEND=77
> GET /inc/cron/tank.php?temp=30\r\n HTTP/1.0\r\n Host: http://apexmorphs.co.uk\r\n
busy s...
SEND OK
+IPD,187:HTTP/1.0 400 Bad request
Cache-Control: no-cache
Connection: close
Content-Type: text/html
<html><body><h1>400 Bad request</h1>
Your browser sent an invalid request.
</body></html>
OK
OK
Unlink
400 Bad request
Your browser sent an invalid request. OK OK Unlink – Nathan Witten Jun 27 '20 at 12:47