My idea to stack the led modules works. On the one on the left, I replaced two blue led's with a white and an UV one.
I just finished the first of the twenty grow lights. Works great and as I calculated, it takes at 12V DC 200mA.
So now that the Led's are here. With the laser cut mask I can place them all together with the resistors on the PCB and solder them.
For my plant grow experiment I need a few high voltage circuits. I've got these four for 4 $ on Ebay. I think this is a good price. They have an output between 80-500 V witch is more than enough for the first experimental series.
Uploaded on Sunday and delivered on Friday. My 25 PCB's came with Xmas Gifts. Thank you www.pcbway.com
I decided to use my Pi Zero W to control my for the moment not existing indoor greenhouse 🙂 I used all the parts laying around an it looks not so bad. The parts I used until now: a Pi Zero W a board with 8 relays a temperature sensor DHT 11 a dc-dc converter … Continue reading Pi Based Controller For My Indoor Greenhouse
I'm doing a bigger experiment with plants. It will be a long time project and I will make a special page for this. First, I wanted to buy 2 or 3 Led grow lights, but they were too expensive or not what I needed. So I decided to build my own Led light. It's not … Continue reading Led Plant Grow Light
It's based on an Esp8266 Wemo D1 mini, a switching circuit with a 3,3V regulator and a 50mW green Laser