I got a ESP-01 version of this module, which has 8 pins: VCC, GND, CH_PD, TX, RX, RST, GPIO0, and GPIO1. Wiring the module is not complicated and should be the same for all versions of this module:
Open the serial monitor from Arduino IDE, change the two settings at the right bottom corner according to the above picture. As you can see, my first 3 AT command didn't go through because of the carriage return is not there.
ref:
http://williamdurand.fr/2015/03/17/playing-with-a-esp8266-wifi-module/
http://rancidbacon.com/files/kiwicon8/ESP8266_WiFi_Module_Quick_Start_Guide_v_1.0.4.pdf
http://www.instructables.com/id/Getting-Started-With-the-ESP8266-ESP-01/
VCCneeds 3.3VCH_PDhas to be pulled-up (meaning it has to be connected to 3.3V as well)GNDis connected to FTDI’sGNDpinRXis connected to FTDI’sTXpin, because you want to create a loop:RX->TX=>RX->TXTXis connected to FTDI’sRXpin- other pins are left floating
VERY VERY IMPORTANTLY, this module needs 3.3V, not 5V which is what most FTDIs supply. Even if your FTDI module has an 3.3V output or a switch to change the voltage, please measure it with a multimeter to make sure it is outputing 3.3V exactly. I wasted more than one hour just because I trusted the piece of garbage!!!!
Step 2: Communication
Open the serial monitor from Arduino IDE, change the two settings at the right bottom corner according to the above picture. As you can see, my first 3 AT command didn't go through because of the carriage return is not there.
ref:
http://williamdurand.fr/2015/03/17/playing-with-a-esp8266-wifi-module/
http://rancidbacon.com/files/kiwicon8/ESP8266_WiFi_Module_Quick_Start_Guide_v_1.0.4.pdf
http://www.instructables.com/id/Getting-Started-With-the-ESP8266-ESP-01/
No comments:
Post a Comment