oh. it looks like the design from picteks looks more advanced. my does have the problem that the screen starts to show scrambled stuff after some days. I really dont know why. And the speaker connected to the speakjet is making noise when the display brightness is high and it is even louder when the power is below 7V.
here is a list of the stuff currently connected to it:
for the clock:
1 Arduino of course.
mp3 trigger v1
speakjet shield
a touchshield as screen and input (wanted to replace with cheaper lcd screen)
2 loudspeaker
1 rf receiver
for the sensor:
1 arduino mini pro 5v
a rf sender
a sht15 temperatur & humidity sensor.
1000 mAh battery
<5v to 5v converter
1 sparkfun li,io battery charger
i never really planned anything of this but i can release some source code if wished. 