Designing a High-Efficiency Solar Power Battery Charger
Perhaps useful for E90, E72 or E15 project.
Use the MSP430 to build a BCD clock. led-binclock.jpg (400×612).
You could also use standard seven segment displays to get a clock that others can read.
As part of the project, we could build a printed circuit board so you have a completed clock.
Perhaps a useful tool for a wireless low power device. Low-Energy Bluetooth Smart Module Enriches App Flexibility | Communications content from Electronic Design.