Liquid nitrogen (finally) makes an Arduino project cool. Overclocking Arduino with liquid nitrogen cooling. 20⇒65.3Mhz @-196°C/-320°F article has this video that shows how it is done.
It turns out that you can run an Arduino UNO at 65.3MHz when it is cooled with liquid nitrogen. Arduino UNO / ATmega328P at 8V is stable at 65.3Mhz when cooled with liquid nitrogen, while at room temperature – only at 32.5-37Mhz while the manufacturer rated the part only up to 20 MHz. Is this useful? Probably not. Is this a cool hack? Yes.
3 Comments
Tomi Engdahl says:
The UNO Overdrive
What to do when your Uno isn’t fast enough
http://www.hackster.io/janost/the-uno-overdrive
What do you do when your project runs out of horsepower?
Well you increase them of course.
The Uno/Dumilanove Overdrive, running at 32MHz, makes your board and project go twice as fast.
It replaces the existing crystal with a clockgen running at 32MHz for twice the speed.
Tomi Engdahl says:
Liquid nitrogen (finally) makes an Arduino project cool
http://hackaday.com/2013/08/18/liquid-nitrogen-finally-makes-an-arduino-project-cool/
At $1.5 a liter in Moscow, [Michail] couldn’t resist buying some liquid nitrogen for himself. He thought that because Arduinos were quite popular among geeks, he’d try to overclock one while bringing its temperature down to -196°C/-320°F.
It turns out that you can run an Arduino at 65.3MHz when it is cooled with liquid nitrogen!
Overclocking Arduino with liquid nitrogen cooling. 20⇒65.3Mhz @-196°C/-320°F
http://3.14.by/en/read/arduino-liquid-nitrogen-overclocking
Tomi Engdahl says:
Clocking (or Overclocking) an AVR
http://hackaday.com/2015/08/04/clocking-or-overclocking-an-avr/
Some guys build hot rods in their garage. Some guys overclock their PCs to ridiculously high clock frequencies (ahem… we might occasionally be guilty of this). [Nerd Ralph] decided to push an ATTiny13a to over twice its rated frequency.
It didn’t seem very difficult. [Ralph] used a 44.2 MHz can oscillator and set the device to use an external clock. He tested with a bit-banged UART and it worked as long as he kept the supply voltage at 5V.
Now, if you are just doing this for sport, a little liquid nitrogen will push your Arduino to 65 MHz
http://nerdralph.blogspot.ca/2015/07/externally-clocking-and-overclocking.html