![wemos mega esp8266 firmware wemos mega esp8266 firmware](https://static.imasters.com.br/wp-content/uploads/2017/06/02.jpg)
A quick 'blue blink' occurs when you connect and remove RST pin from Arduino GND.ġ.6) TX with Arduino TX, and RX with Arduino RX.ģ. You must connect it in Arduino GND only to reset the current ESP firmare, and remove it for update the firmware. GPIO0 in GND is to enable programming in ESP8266.ġ.5) RST pin is used only to reset the ESP module. If you can not touch the ESP due high temperature, turn off the connections immediately).ġ.2) GPIO2 is not used to the firmware update.ġ.3) Only VCC and CH_PD (CHip Down) must be connected at 3.3V Arduino ports.ġ.4) Only GND and GPIO0 (general purpose input/ouput) must be connected at GND Arduino ports. All the tests in this section keep the ESP temperature relatively low. (Tip: Not use the 'trick' of linking Arduino RESET in GND ports because you can burn your ESP module. )ġ.1) You need to remove Arduino ATMega chip.
#Wemos mega esp8266 firmware serial
5.8) At this step, if you remove and connect again the CHPD wire, you should see some characters in the serial monitor.
![wemos mega esp8266 firmware wemos mega esp8266 firmware](https://i.ytimg.com/vi/HKJnwbTZwzw/maxresdefault.jpg)
5.6) Select the proper ESP settings as follows: 5.7) Open the Serial Monitor.
![wemos mega esp8266 firmware wemos mega esp8266 firmware](https://i.imgur.com/yIDUXCX.png)
This is a review of my previous post, but with a lot of improvements. 5.5) Choose Tools - Board - Generic ESP8266 Module.