ESP8266 ESP-01 Firmware Update with Arduino

From: http://www.elec-cafe.com/esp8266-esp-01-firmware-update/

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pdate ESP8266 ESP-01 to new firmware for my home automation project, initially the module was working perfect to you.

Step 1: Parts List

Arduino UNO
ESP8266 ESP-01

Step 2: Download ESP8266 Flasher and ESP8266 Firmware

Download ESP8266 flasher from this link
ESP8266_Flasher

Download ESP8266 Firmware from this link
AI-v0.9.5.0 AT Firmware.bin

Step 3: Connecting ESP8266 to Flash mode

ESP8266 <-> Arduino UNO



Tx    <->Tx (D1)
Rx    <-> Rx (D0)
VCC   <-> 3.3v
GND   <-> GND
CH_PD <-> 3.3v
GPIO0 <-> GND (Connect into flashing mode, disconnect after finish)

** Connect ESP8266 RX to Arduino UNO Rx and ESP8266 TX to Arduino UNO TX **

Step 4: ESP8266 to Boot Mode

Upload Blink example code to Arduino UNO

// the setup function runs once when you press reset or power the board void setup() { // initialize digital pin 13 as an output. pinMode(13, OUTPUT); } // the loop function runs over and over again forever void loop() { digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }

** if you can’t run upload , please remove TX and RX and then connect after finish **

Step 5: Uploading Firmware

Browse the bin file or firmware version files
Set you COM Port –> (view Device Manager> Ports(COM&LPT))

Click Download button



Complete update firmware

** In the end at 99% it will show some error but this is ok.

Test AT commands in Arduino Serial Monitor
Set Both NL & CR
Set Baudrate at 9600
Enter “AT” and you will get “OK”.
Enter “AT+GMR” and check the firmware version.