This solution would also work in locales where electricity is unreliable, as ESP8266 could run on batteries, and the phone already has its own.

Connect the board acting as an access point, and type the board’s IP in a web browser to start coding on your smartphone or other device with a web browser.

Run NodeMCU uploader to load nodemcu-httpserver to the board.Configure the firmware with serial port and WiFi details.Download the web server code based on Marcos Kirsch’s nodemcu-httpserver with Lua editor on Github.Flash NodeMCU firmware using a computer via a USB to TTL board.Build and download NodeMCU firmware with your required modules.A summary of the steps can be found below: Some of the steps (installing firmware) require a computer, but this could be either done at the factory or using a single computer in the classroom, with Lua programming done on the students smartphones. 陳亮 has provided instructions to program ESP8266 WiFi boards with Lua using the web browser of his smartphone, for people who may want to program on the go, but this may also be useful for educators in developing countries. ESP8266 provide only software I2C interface it means we can use any two pins for I2C but following pins mostly used. GPIO12 for Mater-Out-Slave-In (MOSI) GPIO13 for Mater-In-Slave-Out (MISO) GPIO14 for Serial Clock (SCLK) GPIO15 for Chip Select (CS) I2C pins. Some devices in the “cellphones but not smartphones” might be feature phones with WiFi and a web browser.Īnyway ideally a low cost board should support both computer and smartphones or cellphone with a web browser. A Serial Programming interface (SPI) has following pins in ESP8266. For example, 55% of Brazilian adults own a computer at home, while only 24% own a smartphone, but in Kenya only 8% own a computer at home, while 15% own a smartphone. Is that true?Īccording to a 2014/2015 study by Pew Research Center, there is some truth to it, but it varies greatly between countries. So person suggested that such initiative would work better in some countries if programming was possible via a smartphone instead.

In recent days, I wrote about low cost MCU boards such as the $2 BluePill, and the One Dollar Board project, but several people commented that while the board themselves are very cheap, it might still be a problem in some developing countries, where access to computers cannot be taken for granted.

Software serial esp8266 programming