Problem with sending AT commands in esp-01
Posted: Fri Oct 16, 2015 6:57 amHello out there.
Just got an esp-01 module and followed [url="http://esp8266internetofthings.blogspot.gr/2015/10/how-to-flash-at-commands-firmware-in.html"]this[/url] guide to flash a new firmware.
Then, i connect the GPIO0 pin (after the flashing) to VCC using a 1K resistor and the RST pin to GND for a while to restart the module.
I used putty, arduino's IDE console window and ESPlorer to connect to the module. A text like this one
In Arduino IDE
In ESPlorer
and when i tried to send e.g AT command nothing happened.
Here is my pin connections for the normal mode:
TX - RX (USB to TTL)
RX - TX (USB to TTL)
CH_PD - VCC (3.3V) (Breadboard)
RST - VCC (3.3V) (Breadboard)
GPIO 0 - VCC (3.3V) (Breadboard)
GPIO 2 - VCC (3.3V) (Breadboard)
VCC - VCC (3.3V) (Breadboard)
GND - Ground (Breadboard)
Any idea or hint ?
Thank you.
Just got an esp-01 module and followed [url="http://esp8266internetofthings.blogspot.gr/2015/10/how-to-flash-at-commands-firmware-in.html"]this[/url] guide to flash a new firmware.
Then, i connect the GPIO0 pin (after the flashing) to VCC using a 1K resistor and the RST pin to GND for a while to restart the module.
I used putty, arduino's IDE console window and ESPlorer to connect to the module. A text like this one
In Arduino IDE
"YΨώ�i΄ όh">Ψ9 kDά~|’Τ¶’�>‚ΎXVHΤΘς²(2–6γ
In ESPlorer
PORT OPEN 9600
Communication with MCU...
..........
.........Got answer! AutoDetect firmware...
Can't autodetect firmware, because proper answer not received.
YΒΦyωΨ2iΌ|%.ΘRμ‡&$`ΘV)Π ψ,YµK`R\J0 ‚²jρ€Ζπ
and when i tried to send e.g AT command nothing happened.
Here is my pin connections for the normal mode:
TX - RX (USB to TTL)
RX - TX (USB to TTL)
CH_PD - VCC (3.3V) (Breadboard)
RST - VCC (3.3V) (Breadboard)
GPIO 0 - VCC (3.3V) (Breadboard)
GPIO 2 - VCC (3.3V) (Breadboard)
VCC - VCC (3.3V) (Breadboard)
GND - Ground (Breadboard)
Any idea or hint ?
Thank you.