Arduino Countdown

Arduino Countdown

I have recently made a PCB of Arduino Countdown from http://hacks.ayars.org/2011/08/how-long-until-christmas.html this PCB have a lot of I/O pin headers that you can connect a…

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LCD Demo board for PIC

LCD Demo board for PIC

This board was designed to test quickly if a PIC microcontroler run correctly, easy to use, make your connections between pin header and LCD, also…

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Max038 function lab generator

Max038 function lab generator

This project is too old, only for reference because Max038 is discontinued, and i have sadly lost the layout file, right now, its better to…

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Charge pump DC/DC converter with Max756

Charge pump DC/DC converter with Max756

Here is two version of Max 756 PCB, the MAX756/MAX757 are CMOS step-up DC-DC switching regulators for small, low input voltage or battery-powered systems. The…

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RS232 Interface

RS232 Interface

Sometimes you need to connect something with serial RS232 bus, a good way is this: “The MAX232 is an integrated circuit, first created by Maxim…

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