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[View \| Download]	MSP430 Bedside Table Alarm Clock Hi, like everyone else, I finally built an alarm clock for my bedside table using an MSP430 which came with the TI Launchpad. To get hold of the low pin count, I used a 74HC164 shift register for port expansion. Thus two pins of the MSP430 are used as shift register clock and data yielding eight outputs for the anodes of the 7-segment (plus decimal point) digits. Another four pins of the MSP430 are used to time-multiplex the four common-cathode digits, using a variable time per digit depending on the LED count, the digit is using. This is done to get the digits equally bright. The remaining two pins of the MSP430 are connected to push buttons for user interaction -- one pin serving double as input and output when playing the alarm tune. A simple finite state machine is used for the control logic. I found the available 2048 bytes of program memory a bit sparse, needing to rewrite code sometimes to get a lower memory footprint. The program plus the data for the tune now use even the last available byte. In normal standby operation the circuit consumes about 2 µA -- yielding a theoretical lifespan of 10+ years assuming the 200 mAh AAA batteries won't die beforehand :) The source code and more images can be found here: http://dangerousprototypes.com/forum/viewtopic.php?f=56&t=2126 Have fun, Markus Tags: MSP430, alarm, bedside, clock, table 1 Downloads - Last from: (Your Blog here!)
[View \| Download]	TI LaunchPad RFM12B Spectrum Analyzer http://www.simpleavr.com/msp430-projects/rfm12b-spectrum-analyzer . ti launchpad + hoperf rfm12b + led . build on diy breadboard shield . linux based host visualization w/ perl/tk script . transferable to launchpad free standalone design . rhss test has been simplified to explain core mechanism Tags: Breadboard, Linux, MSP430, Perl, RFM12B, Shield, Spectrum Analyzer, TI LaunchPad, Tk, mspgcc 1 Downloads - Last from: (Your Blog here!)
[View \| Download]	MSp430 and HD4478 tiny 9600 baud serial display Demo of using HD44780 Lib for msp430 to display text from a 9600 baud RS232 stream. Tags: HD44780, Launchpad, MSP430, Serial Display, Serial Interface 1 Downloads - Last from: (Your Blog here!)
[View \| Download]	Bicolor Clock running on MSP430 See my blog for more details: http://kennethfinnegan.blogspot.com/2010/08/msp430-bicolor-led-clock.html Tags: MSP430, electronics 1 Downloads - Last from: (Your Blog here!)