Vermes
Advanced Member level 4
Presented project is a construction of a miniature digital photo frame. The frame has a serial flash memory, so you can save up to 16 images in 16-bit colour depth (which appear in the display in user-specified time interval). The frame also displays the current time and the demo text. You can also adjust the brightness. The frame can be configured by a specially dedicated program on PC (it allows you to upload photos, set the time, adjust the size of the fonts). The frame has a resolution of 132x176 pixels and the display was taken from the Siemens S65. Screen size is about 3 x 4 cm. The housing was made of an aluminum photo frame. The USB connector was mounted in a special way, so it additionally stabilizes the frame (USB plug and cable act as the stand).
The device is powered from a mp3/mobile phone charger. It has a real-time clock maintained by a capacitor. Thanks to that, for the duration of switching the supply from the USB (for configuration) to an external power supply, previously set hour is remembered.
Link to original thread (useful attachment) – Cyfrowa ramka do zdjęć