Ser Ko's Compact ESP-01 WLED Shield Packs in the Feature for RGB LED Control

With three outputs and optional support for motion sensors, temperature sensors, and relays, this shield is a miniature marvel.

Maker Ser Ko has designed an ultra-compact shield for the Espressif ESP8266-powered ESP-01 module, designed to offer the "maximum features ever possible" for WLED-based projects: the simply-named ESP-01 WLED Shield.

Designed for use with Christian Schwinne's popular WLED firmware, which turns an ESP8266 or ESP32 microcontroller into a webserver for control of NeoPixel and SPI-based individually-addressable RGB and RGBW LEDs, Ko's shield is impressively compact β€” taking up only a little larger footprint than the ESP-01 module itself.

In that footprint, Ko has added three outputs with screw terminals, two of which additionally support infrared sensors, temperature sensors, relays, or a passive infrared motion sensor, a level shifter for the microcontroller, a header for an external on/off button, and a header for serial programming β€” all in a board designed to be powered from a 5V supply.

"It works with very popular WLED firmware," Ko says of his creation. "[It] can be used for many different projects that use ESP-01 board. The limit is your imagination."

The board is now available on Ko's Tindie store at $5.95 β€” or $10.45 with an ESP-01 module preprogrammed with the WLED firmware.

Gareth Halfacree
Freelance journalist, technical author, hacker, tinkerer, erstwhile sysadmin. For hire: freelance@halfacree.co.uk.
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