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Open-source hardware project hosting is my passion. I spend most of my free time building neat gadgets or planning what I'll build next. I love building things, and I want to make Open Hardware Hub a place that inspires others to build, ...
Updates 2013 February 18
It's been a while, hasn't it? Well, that's ok because we've got a lot of updates to talk about. Most of these have been effective on the site fora couple weeks now. A few may or may not be active when this article gets posted, but they'll certainly be applied in the ...
Push a button to roll the dice. When you let go of the button, the result shows up on the red LEDs just like on real dice. This is a simple beginner's open source hardware project that you can show off to your friends the next time you play a board game and can't find the dice for it!
- Electronic_Dice.sch - Electronic Dice EAGLE Schematic
- Electronic_Dice_Schematic.pdf - Electronic Dice PDF Schematic
Bill of Materials
|Qty||Part #||Description||Schematic ID||Source|
|1||CD4017BE||IC, 4000 CMOS, 4017, DIP16, 18V||IC2||Source|
|1||CF14JT1K00||1/4w 1K ohms 5% Carbon Film Resistors||R1||Source|
|1||CF14JT1M00||1/4w 1M ohms 5% Carbon Film Resistors||R2||Source|
|1||SR151A151KAR||CAPACITOR CERAMIC 150PF, 100V, C0G, RADIAL||C1||Source|
|7||WP7104ID||Red T-1 3 mm 40° Tinted Diffused 20 mcd 2 V Solid State LED Lamp Through Hole||LED1,LED2,LED3,LED4,LED5,LED6,LED7||Source|
|1||NE555P||TIMER SINGLE PRECISION,DIP8 ,0.5MHZ||IC1||Source|
|7||1N4001-G||DIODE RECTIFIER 1A 50V DO-41||D1,D2,D3,D4,D5,D6,D7||Source|
|1||BS6I||SNAPS 9V 6" LEADS I-STYLE||JP1||Source|
Insert 150pF capacitor as shown. Use a capacitor with a smaller capacitance to increase the frequency of the 555 timer and make the die "roll" through more digits while the button is held down.
Insert 1M (brown,black,green,gold) and 1k (brown,black,red,gold) resistors as shown. Decrease the resistance of the 1M resistor to increase the frequency of the 555 timer.
6 - updated description
5 - updated step numbers.
4 - changed LED part
3 - added a description for the project image
2 - added file descriptions
1 - Initial project release
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