User Manual

CDriver User Guide 21

6.2 Egg Timer

Source code: EDS-egg-timer.py

The demo uses POT, DIG2 and BEEPER to make a simple kitchen egg timer.

Twisting the POT sets a countdown time in seconds, and after it’s released the

ticker starts counting. When it reaches “00” it ﬂashes and beeps.

6.3 Take-a-ticket

Source code: EDS-take-a-ticket.py

This demo runs a take-a-ticket display for a store or deli counter, using RE-

MOTE, DIG2 and BEEP modules. It shows 2-digit “now serving” number, and

each time ’+’ is pressed on the remote it increments the counter and makes a

beep, so the next customer can be served. Pressing ’-’ turns the number back

one.