Logochip Creative Works

Posted on Feb 4, 2014

There is something to be said for the processes of reducing a set of objects or functions down to their lowest common denominator but I think what has really driven me to do this is I am too cheap to go out and buy an Arduino Decemila every time I want to built a new project. But really after doing quite a bit of business with the Logochips I thin

Logochip Creative Works
Click here to download the full size of the above Circuit.

k I understand how important it is to try to design The little engine that could  do almost anything on a budget. This could be cool, and time will tell what all can be done with it. First there is the microcontroller, the brain, the Atmel ATmega168-20PU(costs about $4. 00). I should mention here that you need a way to program the bootloader into the Atmel chip. If you have a friend like Keith who will lend you his USBtinyISP and an Arduino Decemila it makes it real easy. Other wise buying one of each might be good if you plan to make a lot of clones. Next you need to provide the chip with a good 5 volt supply. I suggest the LM7805 and a couple of small capacitors(costs about 50 cents) to regulate just about any voltage down to a nice safe 5 volts for the microcontroller. If you are making a project that already has a 5 volt supply like an oldcomputer power supply you can use that or a set of 4 rechargeable batteries (AA or AAA) works well for those portable projects. Now the brain needs a clock to keep it on time. That would be this, 16 megahertz crystal resonator (costs about 40 cents). Your probably reading this post on a laptop or desktop computer that is screaming along at 1 or 2 gigahertz well, just slow down, take it easy, 16MHz is just the right speed for the serial communications between theArduino and your computer. One more thing. The brain has a tendency to fall asleep. You`ll need a 10, 000 ohm resistor (cost...

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