Uploaded February 2021 | Updated September 2026, 1 hour ago

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For many, the idea of computer programming doesn't exactly marry with the crafting skills typically associated with terrain building. But don't worry - this is more than doable. If you can fill an excel file in, it's not much of a stretch to program the sequence/pattern with Harlech.
Yes, you'll be able to do WiFi control etc later on - but lets get your terrain flashing with patterns to begin!

Links:
BUY a pair of Terrain Tronics Harlech Castle Boards - tindie.com/products/terraintronics/harlech-castle-8xled-controller-pair
Download the Arduino software: arduino.cc
Link to setting Arduino to talk to the D1 Mini: averagemaker.com/2018/03/wemos-d1-mini-setup.html
Terrain Tronics Code Examples: github.com/Audio-Rochey/TerrainTronics-Harlech-Castle