saw a major flaw with many LED watches – you have to press a button to see the time: askoog89
I tried fix that problem by using a tilt switch to active the LED showing the time when tilt your arm to look at the watch
The watch uses the low power MSP430G2211 MCU from Texas instruments to control the LED and mesure the time with the help of a 32kHz watch cristal. The MCU sleeps most of the time only waking up ones a second to count up the time and check if the tilt switch is active. To show the time the watch uses 12 charlieplexed orange LEDs.
nickjkl created this breakout board to free up some breadboard space:
contains two I2C temperature sensors: a TC74 and a DS1631 because only one temperature sensor is never enough
KiCad design files and MSP430 Energia sketch example are available on GitHub:
BoosterBot turns a TI Launchpad into a fully functional robot:
Perfect for anyone who wants to get started with MSP430 and robotics, or just wants an easy to use robotics platform to build off of.
The board features:
Micro Metal Gearmotors from Pololu
Powered by 3xAAA batteries
Five QRE1113 Reflectance sensors for line following and maze solving
Header for a Sharp IR distance sensor
Header for a servo
The design files and source code are available on GitHub:
Here’s a video of the BoosterBot in action: