Markus Gritsch build another bedside table alarm clock, the schematic and source code is available here:
recently some vintage bubble displays popped up at various places [1][2], so I felt the urge to build another bedside table alarm clock, this time a really tiny one, roughly the size of an AAA battery.
Check out the video after the break.
Very nice, I love it !
Nice project.
I have the same MCU (msp430g2452), same bubble display x 2, lot more buttons…. gives you a calculator.
https://lh5.googleusercontent.com/-HRhpe45pHkg/U4asYkQkzKI/AAAAAAAAG58/1rZ_8tiZSRQ/w925-h694-no/IMG_20140528_221240.jpg
There is no write-up yet.
Hi Chris, I’m looking forward to the write up. I always enjoy reading about your nice projects :)
it’s amazing to use one of the low energy consumption microcontrollers on earth with one of the more energy hungry displays :) it’s a pitty we can’t find such nice extra-small displays made with new low energy and high luminosity LEDs.
cool project :)
A-ha! I’ve got a similar 9-digit bubble display lying around (for a calculator, I suppose). Thought of hooking it up to an atMega or atTiny, but couldn’t think what for. Maybe I’ll just make a dual time zone clock, or time+alarm display. Need to have a look at the tech specs of your clock chip…
Thanks for sharing your ideas!
What’s the power source? Is it only 1.5V?
No, it is a AAA sized LiFePo4 battery, rated at 3.4 V. I bought mine from here http://www.ebay.com/itm/2-10450-3-2V-200mAh-LiFePO4-AAA-Rechargeabe-Battery-w-Sub-Case-1-LiFe-2-NiMH-AAA-/220983787601?ssPageName=ADME:L:OC:AT:3160
Love them.