Next Meetup

DIY Hydroponics with Arduino
With spring weather approaching, this is the perfect time to build your first bottle garden. In this class, we will cover how to program and assemble a vertical bottle garden. Hydroponics is the process of growing plants by flowing nutrient dissolved water instead of using soil. One popular implementation of hydroponics is to grow plants in vertically stacked bottles. The water flows through each bottle where a plant, typically grown in a rockwool medium, absorb the water as well as the nutrients mixed in. This class also serves as an introduction to Arduino class. We'll be doing labs that cover the practical concepts include reading sensor readings and toggling externally powered devices. The take-home kit included with the course fee consists of an water pump, moisture sensor, an Arduino Metro Mini, and the necessary USB cables and power supplies. The Arduino board will control the water pump according to how dry the bottle plant is. This project can be scaled to include as many bottles as the user would like. You will need to bring a PC or OSX (Mac) laptop. This course does not require any experience in using Arduino.

Hack Manhattan

137 West 14th Street, 2nd Floor · New York, NY

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What we're about

Hack Manhattan ( is located on 137 West 14th Street between Union Square and Chelsea. We are dedicated to technology, art and craft. Our open nights are every Tuesday and Thursday. Drop by to hang out and chat or work on projects using our equipment. Everyone is encouraged to bring a project to work on! If another day suits you better, even if there isn't a scheduled meetup event, guests are welcome to visit our space and use the facilities whenever a member is present!

A lot of our activities have focused on electronics and 3D printing, but we also have a machine shop with a lathe and a mill, sewing machines, gardening and even a beehive on the roof.

Most community activity happens on our discussion mailing list "Blabber" (, as well as our Slack ( Our Slack is invite-only at the moment, but we're always happy to get new people in! If you want to join us there, please email !

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