Photos

Here now the photos of the final version.

These are photos of the second prototype I ordered at PCB-Pool.

Display complete. In the upper left corner you can see the Bluetooth module and below the connector to the RS232.

Note the "Remove Seal after Washing"-Label on top of the buzzer. I did not remove it because the buzzer is loud enough for my lab. But if you close the case without drilling sound holes in it you may want to remove it to get enough of sound...

Perspektive view.

Display component side.

Sensor component side, only SMD parts are populated.

The RU226 is much more complex than the typical chinese clock. Notice the two crystals for the two stage input filter. The receiver IC is not identifyable on the photo, it is an U4226B.