Wireless Dice
Hardware- 6 Devlogs
- 10 Total hours
A set of rpg dice that connect to your chosen device
A set of rpg dice that connect to your chosen device
I made the BOM and setup my github page. I wanted to make sure that I got the correct parts, since the Kicad BOM was not correct at first.
I did a few things. First, I made a basic form of the firmware for one of the dice as well as the charging hub. It definitely isn’t final, but there’s only so much that can be done without having the actual device yet. I then designed a case for the charging hub. Here’s what it looks like. There are magnet slots next to the rectangles, but they aren’t visible from above.
I made the PCB for the charging hub. I also turned it into a panel, so that the entire thing will fit in a 100x100 mm order rather than several orders. This will be a flex PCB, which is not ideal for the hub, but needed for the dice themselves. There are 7 dice here, but I will only be making 6. (I’m skipping the 2nd d10, since it’s just different values on the same die) Also, The PCB for the charger can be pretty small since I just have to run a ground and power wire to each charging slot. Next up is 3d modeling for the dice and the charger.
I finished the PCB for the die. There will be one of these in each die, but it should function with the same design for each die. The firmware will just have to be slightly different for each so the 3-axis accelerometer knows what each side is supposed to read. I did finally get my custom footprint for the supercapacitor working as well. Here’s some pictures of the design and PCB render. It’s going to be a flex PCB so it can fit in a 10x10x10mm space
I have begun the layout of the pcb that will go inside the die. i will be using a flex pcb, so that I can fold it around the inside of the die, since I’m working everything in a 10x10 mm space. I’m hoping I can keep it that small, since some dice are smaller than others and I want to mostly keep the same internals for the different dice. I do still have to make a footprint for the supercapacitor I’m using (currently C3, but it’s not correct), which will go in the center.
So, I’ve decided to make some wireless dice. I realize they already exist, but they always seem to be over $20 a die not including the charging dock. So I’m going to do it for less (I hope). Anyway, here’s my initial schematic of the dice and the dock. The hardest part of this design is going to be fitting it inside the dice without making them much bigger, though some dice will have to be bigger. (I’m looking at you d4)