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Searching for: avr
WWVB clock progress [01315859368]
Chris was kind enough to pass along to me a
commercial WWVB receiver.
This module was a bit of a pain to develop for, because most of the time the
interference from a nearby laptop computer is enough to seriously compromise
reception, and almost all of the time having a USB cable running from the
microcontroller to the laptop will kill reception outright.
Towards my GPS LED Light Clock [01308773950]
A few years ago, I made a CCFL light clock using an Arduino with a custom
shield containing a transformer (to get a reliable 60Hz timebase) and a
triac (for solid-state switching of the lamp). By having a simple 7-day alarm calendar (set at compile time), the clock seldom requires interaction except for the reading lamp function.
However, the design has two main problems:
Arduino Random Number Generator [01257868826]
Random Number Generator Schematic
Inspired by other designs I've seen online, most directly Rob Seward's design, I decided
to build my own random number generator based Will Ware's "avalanche noise in a
reverse-biased PN junction" (try this mirror of Will Ware's page)
at90usb162 single-sided board [01246277973]
I got an e-mail request for this board. You may use this eagle (4.x) library,
schematic, and board under the GNU GPL version 2 or later, or CC-BY-SA.
Autoreprogram for DFU devices [01223124878]
… name your .hex file (and avr partnumber if it's different), then leave it running in the…
at90usb162 gotcha: PC0 vs XTAL2 [01223089539]
Improved Analog & Digital Interface with Arduino [01198594294]
… weak pull-up built into the AVR microcontroller. For the analog inputs and outputs, the default gain/scale…