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Display Test

A project log for Smart DCF77 Wirst Watch

A retro style Wirst Watch with a LED segment Display. Receiving time over DCF77 and personal reminders over a hacked/modified DCF77 signal.

mclienmclien 08/19/2014 at 11:590 Comments

Yesterday we were testing the display.

Only connecting the display, sisam wrote a code to just display numbers by editing the code of the sketch to have an idea what it looks like

left: breadboard setup, right: displaing 13:37 in full brighness

breadboard setup

LED

left: Time with grey acryll, right: appointment alarm, appointment in 2h42min

Datasheet for the display:

http://www.electronctl.net/Note/BB_QDSP_DS.pdf

Here is the matrix to connet the Display to the arduino:

Display PIN
123456789101112
Arduino PIN
3
pwm
015
pwm
46
pwm
72910
pwm
1112
FunktionCathode
Digit 1
Anode
e

Anode
c

Cathode
Digit 3

Anode
dp

Cathode
Digit 4

Anode
e

Anode
d

Anode
f

Cathode
Digit 2

Anode
b

Anode
a

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