I used dev board version CH340, but you can use any ESP8266 board you are used to work with. Very simple schematic is attached in this step, as well as arduino code. Like I mentioned, the mini garden is based on ESP8266. I also used few drops of blue powder dry and in the end the scuplture was covered by transparent paint in spray. After a few days of drying, I covered the concrete with a combination of grey, white and black acrylic paint in spray. When I was satisfied with the shape, I covered the polystyren layout with a simple layer of concrete. On the picture, you can see the position of the pump on which is attached a silicon tube passing through all the layers of the polystyren foam right to the top of the sculpture. ![]() Unfortunately, I don't have a picture of white LEDs soldering, but firstly I prepared cable along the edge of the sculpture and after that I soldered LEDs to the desired positions. The main ESP board is inserted from a down side and there is also WS2812 inside to allow changing the color of the light as you want. I needed to prepare all holes and hidden parts for future implementation of electronic. For most of the cuts I used a foam cutter, and a simple knife. The sculpture is a composition of three parts that are glued together in a way that allows the water to flow from top of the sculpture through a small waterfall. ![]() I decided to use the polystyren foam as a base since it is easy to cut to the shape you need.
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