Set consisting of a stepper motor driver based on the ULN2003 chip and a 4-phase stepper motor. Equipped with 4 status LEDs for each phase of the motor, the driver is controlled via the 4 input pins IN1-IN2-IN3-IN4 with Arduino / Fishino or other microcontrollers. Power supply: 5 Vdc – 500 mA, driver dimensions…
Hydroponics is an effective way of growing plants indoors through the use of water medium and artificial lighting. It often involves having a system to raise and lower the water level around the plants to let the roots breathe, however this can require some non-trivial plumbing. Peter Fröhlich, though, decided to go a different route,…
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