Thingiverse
WeMos D1 Mini ESP8266 LED Bar Case by clough42
by Thingiverse
Last crawled date: 4 years, 3 months ago
This is a case designed to hold a WeMos D1 Mini ESP8266 microcontroller and a strip of addressable LEDs. The ESP8266 can connect to a data source and display status on the LEDs. I use it to read out the status of my garage door and other sensors in my home. The ESP8266 connects to an MQTT message broker and receives messages to control the LEDs.
I printed the body in black ABS and the lens in clear ABS. Other materials would work well. The lens doesn't have to be clear. The LEDs are very bright and will be easily visible through white material. Other colors will also work, but will filter the color of the LEDs.
The WeMos D1 Mini is a self-contained ESP8266 board with the ESP-12F microcontroller, a 3.3v regulator and built-in USB UART. They are readily available from a variety of sources. Official WeMos Store
I used five WS2812b LEDs cut from a strip containing 60 LEDs per meter. These are also available all over eBay. Find WS2812b LED strips on eBay
You can also purchase WS2812b LED strips at Amazon.
You can see in the photos that I added an additional SMT chip onto the microcontroller. This is a schmidt-trigger hex inverter used to convert the 3.3V output of the microcontroller to the 5V input of the LED strip. This is not necessarily needed. In most cases, the 3.3V output will drive the LEDs just fine. I just wanted to try the proper level converter to see if I could make it work.
Demo video here: https://youtu.be/nMmwOEkX5Ko
When you click on these links and make a purchase, it can result in commissions from eBay, Amazon and Alibaba that help support my work.
I printed the body in black ABS and the lens in clear ABS. Other materials would work well. The lens doesn't have to be clear. The LEDs are very bright and will be easily visible through white material. Other colors will also work, but will filter the color of the LEDs.
The WeMos D1 Mini is a self-contained ESP8266 board with the ESP-12F microcontroller, a 3.3v regulator and built-in USB UART. They are readily available from a variety of sources. Official WeMos Store
I used five WS2812b LEDs cut from a strip containing 60 LEDs per meter. These are also available all over eBay. Find WS2812b LED strips on eBay
You can also purchase WS2812b LED strips at Amazon.
You can see in the photos that I added an additional SMT chip onto the microcontroller. This is a schmidt-trigger hex inverter used to convert the 3.3V output of the microcontroller to the 5V input of the LED strip. This is not necessarily needed. In most cases, the 3.3V output will drive the LEDs just fine. I just wanted to try the proper level converter to see if I could make it work.
Demo video here: https://youtu.be/nMmwOEkX5Ko
When you click on these links and make a purchase, it can result in commissions from eBay, Amazon and Alibaba that help support my work.