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Photoduino – The opensource camera controller based on Arduino

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Photoduino Solenoid Valve Interface 1.0 | Hardware | Photoduino – The opensource camera controller based on Arduino.

Photoduino’s firmware version 0.10 was released to include the ability to control a solenoid valve and  automatically generate drops with Photoduino.

Solenoid valves  are typically powered through 12VDC and have a high current consumption, so we need this new circuit to be connected to Photoduino’s DEVICE port so it allows the connection to a solenoid valve and a 12VDC power supply.

The control of the valve is performed by a Mosfet IRL520 logic transistor and the circuit also includes a 1N4004 diode to prevent the reverse current that is accumulated in the coil.

The board is designed in a single sided PCB so it is quite easy to make at home, but it is also available for purchase as a kit which includes a solenoid valve, a 60 ml syringe and a 12VDC battery holder.
The 12V needed to feed the solenoid valve can be supplied by the 8xAA (R6) battery holder included in the kit. You can also use a 12VDC with at least 500 mA current (not included).


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