Buchstaben Würfel / letter dice

thingiverse

It's a Dice for the famos game City, Name, Country (I don't know how it's called in English). The Dice displays randomly a letter. Every letter only once per round. A mode change resets that. A short push on the small button changes the mode to a normal dice and back. A long push turns off the Dice. It also turns off if no button was pressed within 15 minutes. Used parts: * Wortwuerfel.stl * Wortwuerfel_Bat.stl * Wortwuerfel_Deckel.stl * Wortwuerfel_KMod.stl * Wortwuerfel_KW.stl Hardware: * Platine (Streifenraster 50x35mm 19x13 Loecher) * Draht for Bruecken * Loetzinn * 2x Microtaster (I have the Pins for NC removed) * 1x ATTiny 45 (DIL 8 Sockel) * 1x Widerstand 10kOhm * 1x Keramik Kondensator 100nF * 1x Buchsenleiste 5x1 * 1x Pinleiste 5x1 gerade * 1x Pinleiste 3x2 for the Programmierung If not programmed on the Platine, the Pinleiste and green Bruecken can be removed. * 2 kurze Drahtstuecke zum Batteriepack * 1x LED Matrixdisplay with Ansteuerung MAX7219 * The display is made of 4 modules, which can be easily split up. * Only displays where the control board does not exceed the size of the display fit in the Dice. Battery connections and Durchführungen must be made with Draht or flat metal pieces. Be careful to make good contact, if necessary add something behind it to keep it in place. For Programmierung: * Lib for the Display ansteuerung: https://github.com/wayoda/LedControl/releases * ATTiny Einbindung: https://github.com/damellis/attiny Fuses set to: -U lfuse:w:0xf1:m -U hfuse:w:0xd5:m -U efuse:w:0xff:m EESave must be active. First load Buchst_W_EE and Buchst_W_EE_2, let them run for a short time. Then load the main program Buchst_W. I hope my comments are understandable.