I recently bought a new ESP8266 because I'm pretty sure I used 5V instead of 3.3V on my old one. But it seems the new one behaves the same as the old one.
I'm using the sketch:
When I open up the serial monitor and type [b]AT [/b]I get not response (on the 115200 baud). If I boot up the power supply while the device is connected I get this in the serial monitor:
load 0x40100000, len 1856, room 16 tail 0 chksum 0x63 load 0x3ffe8000, len 776, room 8 tail 0 chksum 0x02 load 0x3ffe8310, len 552, room 8 tail 0 chksum 0x79 csum 0x79 2nd boot version : 1.5 SPI Speed : 40MHz SPI Mode : DOUT SPI Flash Size & Map: 8Mbit(512KB+512KB) jump to run user1 @ 1000 Fatal exception 0(IllegalInstructionCause): epc1=0x40215021, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
When I googled the log it seems to be related to the voltage. Could it be the same problem again? If so, what did I do wrong?