Tag Archives: schematic

Recommended Schematic


Check out this cool etch CNC.  Actually we were thinking of making this too, but since it’s already made, we can learn from it and make it quicker.  Awesome! 🙂

I am using a retrofit machine that fit within my budget. It’s a 2-axis machine with approximately 170x130mm travel.

The circuit board is my own design, using a ULN2803 per motor to supply approx. 0.3 amps per winding. The power supply is a standard AT hard-drive power connector, with the +12V used to power the

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DIY Circuit Oxygen Sensor Simulator

Here’s a cool oxygen sensor simulator via hackaday for those of you who need to build some custom control system for your turbo, nitrous, super-charged engines.  I used to have a car that I put a turbo-charger on it.  Well, I had this really crude fuel oxygen control management system using couple vacuum tubes, but this hack could be good for thos

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ZikiWiki – Technology wiki for hackers, diyers, mcu users, plc users, etc…

ZikiWiki is a technology wiki I created for technology. Well, right now I am just posting some stuff for my work but hopefully, it will get bigger and bigger and become a free useful tool for diyers, hackers, engineers, and etc… Right now it’s in beta testing period, so if you need a place for your information organization, this might be a good place to start.

I thought about how restricted wikipedia was becoming, it’s like a free place that’s not free anymore, but here’s a wiki that is free,

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DIY Circuit – Make your own LED Turn Signal

Here’s a cool LED turn signal circuit and HOWTO.

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DIY Circuit – Car Battery Charger

Here’s a cool car battery charger diagram.

This very simple circuit uses a transformer ,two diodes , a capacitor and an ammeter. To charge a battery just connect the + and – terminals of the circuit to the corresponding terminals of the battery. When the battery is not charged, the ammeter reading shows 1-3 amps. When the battery is fully charged the ammeter reads Zero or nearly zero, after which the battery should be removed from the charger.

via electro

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Circuit – Build your own velocity monitor for paintballs

Here’s a circuit for velocity monitor for paintballs using a PIC microcontroller. [via] designnews

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Ten most needed circuits for the DIYer

Here’s 10 ten circuits needed for DIYers.

via diylive

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