ESP8266 Community Forum

- Mon Aug 10, 2015 1:33 pm #25556 Tried with 4 x 104uF capacitor in parallel between 3.3v and ground and it's still doing the same

- Mon Aug 10, 2015 1:45 pm #25558 Are you sure that the firmware you're using is a good one ?
Did you try to erase the Wifi configs using esptool.py with blank.bin at 0x7C000 and 0x7E000 ?

- Tue Aug 11, 2015 2:18 am #25632 Which was to be expected, imho.

Try this: first a small coil (inductor) in series and then an tantalum capacitor parallel. This will reduce RF noise and ripple far more effectively.

- Tue Aug 11, 2015 2:23 pm #25710 Hello,

Thank you for your answer.

Are you sure that the firmware you're using is a good one ?

Well I tried few of them already and I hope one of them would have had a different behavior.
Two last ones I tried (AI-v0.9.5.0 AT Firmware.bin and v0.9.5.2 AT Firmware.bin, 508K both) ended up with ESP showing:

sll��|�l�|�l�c|����s�b�b��no�lon���cp�lrlrlp�o��lco�|l��b��no�l��l`�onl`nr���n�lp�n�s�����cn�|�b��no�l`�nnl�l`ns���or�``�n��b�ol���on��lp�n�r������l�bn�|�c��on�l�l`�on�lnr���nr�`r��ns�`rl��n���on����rono�l�brl��l������lllsl��llln���l�lll��l��o�o�o~���n�ll��o�n���ol�|bl`sl�ՁMEM CHECK FAIL!!!
Fatal exception (0):
epc1=0x4020eb7f, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000

Did you try to erase the Wifi configs using esptool.py with blank.bin at 0x7C000 and 0x7E000 ?

Yes - Not any better.

Thank you