To do this, the GPIO must be connected to the GND when the power is turned on. Preparing the ESP-01 for Flashingīefore flashing the original firmware, you must already set the ESP-01 “Flashing Mode”. The Arduino IDE is still the simplest way to program the ESP8266, in which case you will need to re-install the original firmware.
ESP8266 FIRMWARE DOWNLOAD INSTALL
The other great strength of the ESP8266 is the ability to install the firmware of its choice (and even develop its own with the SDK). If you get the message below, your ESP is in “Flashing Mode”, this is not a mistake epc1=0x4Įts Jan 8 2013,rst cause:2, boot mode:(1,6)
ESP8266 FIRMWARE DOWNLOAD SERIAL
If the module returns you the following error code via the Serial Monitor, the best is to flash the original firmware of Espressif. This can happen after a faulty installation (other firmware, program …). In return, the ESP returns you the version of the AT command interpreter as well as the version of the installed SDK.įirst of all, ESP01 can sometimes be misleading. If everything is normal, the ESP will return OK. If you can not read (incomprehensible ASCII codes), try changing the speed to 115200 baud. Turn on your ESP, after a while you should get a message containing the seller’s name followed by an OK. Select the mode “Both, NR and CR” and a speed of 9600 baud. To wire, follow the paragraph “Prepare the ESP-01 for flashing” below.įrom the Arduino IDE, launch the Serial Monitor. Once you have uploaded an Arduino program to your ESP, the AT commands will no longer be accessible via the Series Monitor (or via Putty). If you have just purchased your ESP8266, you can easily check the information using the AT commands.
Therefore, you may purchase different versions of the firmware. If you discover the ESP8266 (and the ESP-01), it’s a bit like Arduino clones, you will find many manufacturers / sellers. It is much cheaper than a Arduino Wifi Shield or the Arduino Yun.
For less than 3 € from Asia, you add a Wi-Fi board to your Arduino. The ESP-01 is certainly the most popular member of the large family of WiFi modules ESP8266 (18 at the time of writing this article).
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