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+====== WIO_Clk 100mm Display Rocrail system clock, also useable as standard time display. ======
+{{ :gca:wio_clk_pict_01.jpg?300|}}{{ :gca:wio_clk_pict_02.jpg?400|}}
+[[english|{{  rocrail-logo-35.png}}]]
+ \\
+^Copyright Rob Versluis and Peter Giling^
+\\
+======Another WIO unit ======
+This clock uses large Kingbright SA40-19 displays.\\
+mm is a size which is visable from a large distance, useful for most Railroad layouts as a wall mount system clock.\\
+In connection (WIFI) with Rocrail, it can display the same time as the (fast) clock on screen.\\
+But without connection to Rocrail, it will function as a normal time display.\\
+The system is using the same pcboard for every display, each configured to where it is used for.\\
+Only one Lolin module should be installed and two PCA9622 chips on a small board control the displays and their intensity.\\
+When functioning als standard clock, it collects its time via Wifi from Internet (Frankfurt).\\
+More to come......\\
+\\
+===== The hardware =====
+|  {{ :gca:wio_clk_sch.pdf |The schematic drawing}}  |
+|  {{ :gca:wio_clk_pcb.pdf |The pcb with parts positions}}  |
+\\