When i flash it, the FirmWare LED blinks several times and all looks okay in terminal untill it pops at the end and tells the invalid head of packet ('\x04') error..
what i did was i followed the Polling I/O values via serial part of your tutorial.
first
AT+CIOADC it worked!!
then
AT+CIOREAD=16 it worked too, LED is on
i took a break and when i wanted to log back in minicom i couldn't type anything..
solderings still look ok on both the pi and the pHAT.
could i have bricked the board or something?
im thinking about trying plugging one of my esp8266 chips on a breadboard and test if thats different
_EDIT: i trested program PICOCOM and its the same problem :(
pi@PiZERO:~ $ picocom /dev/ttyAMA0 –emap crcrlf
picocom v1.7
port is : /dev/ttyAMA0
flowcontrol : none
baudrate is : 9600
parity is : none
databits are : 8
escape is : C-a
local echo is : no
noinit is : no
noreset is : no
nolock is : no
send_cmd is : sz -vv
receive_cmd is : rz -vv
imap is :
omap is :
emap is : crcrlf,delbs,
Terminal ready
_