In this project, you’re going to build an Android app using the MIT App Inventor software that allows you to control the ESP8266 GPIOs.
First, watch the video demonstration
To learn more about the ESP8266 use the following tutorials as a reference:
If you like the ESP and you want to do more projects you can download my eBook Home Automation using ESP8266 here.
Let’s get started!
Here’s the hardware that you need to complete this project:
- 1x ESP8266 -read Best ESP8266 Wi-Fi Developmento Boards
- 1x FTDI programmer
- 2x LEDs
- 2x 220Ω Resistors
- 1x Breadboard
- 1x Android Phone
You can use the preceding links or go directly to MakerAdvisor.com/tools to find all the parts for your projects at the best price!
Flashing Your ESP with NodeMCU
In this tutorial we are going to use the NodeMCU firmware. You have to flash your ESP with NodeMCU firmare.
Downloading ESPlorer IDE
I recommend using the ESPlorer IDE which is a program created by 4refr0nt to send commands to your ESP8266.
Follow these instructions to download and install ESPlorer IDE:
- Click here to download ESPlorer
- Unzip that folder
- Go to the main folder
- Run “ESPlorer.jar” file
- Open the ESPlorer IDE
Schematics (3.3V FTDI Programmer)
The schematics for this project are very straight forward. You only need to establish a serial communication between your FTDI programmer and your ESP8266. You can buy one FTDI programmer on eBay.
- RX -> TX
- TX -> RX
- CH_PD -> 3.3V
- VCC -> 3.3V
- GND -> GND
You should see a window similar to the preceding Figure, follow these instructions to upload a Lua file:
- Connect your FTDI programmer to your computer
- Select your FTDI programmer port
- Press Open/Close
- Select NodeMCU+MicroPtyhon tab
- Create a new file called init.lua
- Press Save to ESP
Everything that you need to worry about or change is highlighted in red box.