ESP-09
Posted:
Tue Jun 09, 2015 8:10 amby Gian Carlo Salvati
Dears,
I tried to put to work my ESP-09 but nothing happens.
No AT commands output, no firmware flash working.
I used the pinout on the seller and postted here on this forum.
What shoud I do?
Thanks
Re: ESP-09
Posted:
Wed Jun 10, 2015 11:39 pmby cal
Moin,
advice depends on what you really did and what happens.
The more concrete information you provide the better the answer can be.
Cal
Re: ESP-09
Posted:
Sun Jun 28, 2015 1:15 amby Mirza Ceyzar
I have a similar issue.
I bought 50 x ESP-07 and had the crystal mounted 90 degrees off issue.
bought another 20 units that the seller promised good, and was OK.
Now I got 50 x ESP-09 and tried 2 units both are not working. I hope not to have 100 units in the rubbish bin.
The first unit I connected
antenna -> antenna
vcc -> 3.3v
ch_pd -> 3.3v
rst -> 3.3v
GPIO02 -> 3.3v
gnd -> gnd
GPIO15 -> gnd
GPIO00 -> gnd
tx_esp -> rx_cp2012
rx_esp -> tx_cp2012
Second unit I connected
antenna -> antenna
vcc -> 3.3v
ch_pd -> 3.3v
rst -> 3.3v
gnd -> gnd
tx_esp -> rx_cp2012
rx_esp -> tx_cp2012
Both tried BAUD rate 9600, 14400, 2880, 57600, 100000, 115200, 125000, 150000, 250000.
All return Gibberish...
Consistent gibberish though on both units. Looks like a symptom of wrong BAUD rate.
Does anyone actually get one working ?