Solenoid test

Custom MOSFET board driven by an arduino.

[rodstartube]

yeah they even perform internal clamp diodes, while being specially designed for solenoids, relays and similar loads. With only 4 pins from your microController ("uC") you can chain unlimited 74595 (hs, hc..) chips, each chip provide 8 new pins (solenoids)... then you power them with 2803 or 2003. A neater solution is TPIC6C595 which extends & powers 8 pins in a single chip. I play my 88 keys piano with a single uC and 11 o these chips. So I play MIDI files from my laptop on my wood piano.

[rodstartube]

Absolutely. You power a ULN2803 with 24VDC to pin 10; and ground to pin 9. That will power the all the 8 transistors (outputs) as you say "high" to the respective pin... (RTFM !!!!)
Example:
Then a pin from your uC to pin 1 will energize a solenoid on pin 18, and so on...:

ULN2803 pins:
in-> out
1 -> 18,
2 -> 17,
3 -> 16,
4 -> 15,
5 -> 14,
6 -> 13,
7 -> 12,
8 -> 11,

don't forget diodes & resistors to prevent smoke...

[rodstartube]

are these solenoids powerfull enough to spray a Liquid Ass bottle?

[ZahidKhan-uvnv]

what is the speed of solenoid work in 1 min

[lotec]

solenoids are coper coil electromagnets w/ a ferromagnetic rod in the middle. control of direction is easy, just switch the leads. to control velocity (or acceleration due to the magnet) you would want to change the amt. of current flowing through the copper coil. a square pulse would be easiest i think, but if you needed more precise behavior you could probably change the shape of the pulse.

[anandsmilesath]

This is really awasome. Is it possible to show how to build this. Which Arduino Board u have used and how to make this circuit connection

[saturnreturns]

I'm needing to learn how to use these in a laser show project I'm building.

[phamminhduc]

What type of solenoid is it? I hope you will reply to this comment thank you very much

[billwilliams]

DARGS001,
1.) solenoid coils uses a different type of wire that has "insulation" resistance on the coil wire or something so it doesn't get burned up when left turned on held on for a period of time?
2.) How do you measure the solenoid "Torque" to know how much the power of the solenoids release pushing out strokes to know how strong it releases the solenoids plunger?

[ramg]

Can you please let me know the technical details or sketches of the project

[FrankLopezx]

can we apply pwm signal for incremental pushing or pulling? or are all full on or full out at fast speed or proportional to voltage?

[dargs]

Didn't know about the ULN2803.. I'll get one and try that next! Thanks for the tip!

[adityanandy]

I was wondering if you had a circuit diagram for this custom MOSFET board that you were willing to share! I am trying to build a board to control 10 12V solenoids, and am having a lot of trouble doing so.

[tlliscool]

what voltage and amps are you running them on?

[roberdantes]

nice video, where did you get the solenoid?, what is the price?, are there smaller solenoids?

Thanks

[lotec]

100ma of current is a lot for a light weight robot. the low cost and simplicity of a solenoid is great but the power requirements will probably kill me. need it to deposit something onto a surface, not much requirements in the way of force.

[accordioncafe]

Ahh so thats where they got the choreography for 'Riverdance'.

[Nomoreidsleft]

Is it just on an off or can you adjust the push and pull speeds separately?

[rodstartube]

hi, why didn't you just transistors array like ULN2803 ?? each of them provide 8 simultaneous channels with up to 500mA per channel, that is more than enough for driving even bigger solenoids than those in the video. It's a cheaper and simpler solution to your task... and btw, nice job.

[logicafuzzy]

What is the maximum frequency? i.e. how many on/off per second at maximum? Could they make 40 "click" per second?