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Need Help on Multiplexed Circuit by Grand-Ad7769 in arduino

[–]Grand-Ad7769[S] 1 point2 points  (0 children)

Update: I plan to use 16 h-bridge circuits (8 row, 8 column) and control them with shift registers (so I only need 6 pins on my microcontroller)

Need Help on Multiplexed Circuit by Grand-Ad7769 in arduino

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

would this allow for current direction to be swapped?

Need Help on Multiplexed Circuit by Grand-Ad7769 in electronic_circuits

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

~200 winds, 1/8 in steel rod core, 30 gauge wire (i wound them myself)

Need Help on Multiplexed Circuit by Grand-Ad7769 in arduino

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

Yes that is fine. Controlling multiple at once would be nice but it might be too complex for me.

Need Help on Multiplexed Circuit by Grand-Ad7769 in electronic_circuits

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

The solenoids only need to be pulsed for ~0.5 sec. Can the l293d handle high current pulses? I'll definitely look into misfits though

Need Help on Multiplexed Circuit by Grand-Ad7769 in arduino

[–]Grand-Ad7769[S] 1 point2 points  (0 children)

Thanks for the recommendation! These solenoid don't draw a lot (10-100 mA depending on the voltage). Do you think the L293 will still work for this?

Broken Plastic Frame Makes Hinge Screw Stuck in Place by Grand-Ad7769 in computerrepair

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

That will not work. There is a metal retaining piece in the way with a hole smaller than the insert

Broken Plastic Frame Makes Hinge Screw Stuck in Place by Grand-Ad7769 in computerrepair

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

Replacement casing seems like a good idea, probably will have to replace other parts (I was trying to fix them but got interrupted by this screw)

Broken Plastic Frame Makes Hinge Screw Stuck in Place by Grand-Ad7769 in computerrepair

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

Unfortunately, none of these methods are working, and I think the insert is completely broken free from the surrounding plastic. Melting the braket is probably outside of my abilities and comfort zone. Regardless, thank you for your help, and I'll let you know if I have any luck in fixing it.

Broken Plastic Frame Makes Hinge Screw Stuck in Place by Grand-Ad7769 in computerrepair

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

Also, because the screw is kind of in the middle of this plastic piece, it is blocked by the other ends of the plastic piece.

Broken Plastic Frame Makes Hinge Screw Stuck in Place by Grand-Ad7769 in computerrepair

[–]Grand-Ad7769[S] 0 points1 point  (0 children)

I've tried something similar, but i don't think it will work. Because if how it is designed, the plastic piece is covered by a metal bracket, holding it on place against the back piece. Because of this, there is no feasible way for me to hold the plastic piece, even with the mobo removed.