blinkyfoo

Blinkyfoo scripts for NodeMCU

Putting the scripts on an ESP8266 board running NodeMCU

You can use nodemcu-tool to upload the scripts:

nodemcu-tool upload blinky.lua
nodemcu-tool upload hotspot.lua
nodemcu-tool upload init.lua
nodemcu-tool reset

By uploading the init.lua script, the device will automatically run the other scripts after reset, or when you turn it on again.

When starting, it will put the D3 pin to HIGH. This is where you can wire up an LED. For now, this is the only pin used; it's straight-forward to extend the code and use other pins as well. I am doing this in a related project, but want to keep it rather simple here.

There will be a Wi-fi hotspot with both the SSID and password being blinkyfoo. You can connect to it and then send commands via TCP to the IP address 192.168.4.1 on port 1337.

On UNIX-like systems, you can use nc. On Android, you can use the app TCP Client

Example:

🐢 nc 192.168.4.1 1337
nc: using stream socket
Hello! I am Blinkyfoo. :)
Send on or off to control the LEDs.
To quit, send bye. Have fun!
off
on
off
bye

Demo

Check out this video.