The Schematic is ready
It's been a while since an update. That's because I've been busy designing the schematic circuit for the development board. A dev board differs from a production board in a number of aspects, mostly that there are more hack-in points. Test points, debug headers, programming connectors, etc. This means that the schematic you see below is not representative of the final design, but is a pretty close approximation.
The final version won't use tactile switches of course. Nobody wants to play using those. The schematic is also missing the battery management IC and connector (which I'm still researching). Since I don't need these to run the thing for development, I've not bothered yet.
So, we're nearly there towards having something physical to demonstrate. The next step is to lay this lot out on a PCB, and route it. Since it's only a dev board, I'm not too bothered about using the autorouter (normally I steer away as it's not brilliant at its job). The real thing will need more care. Either way, I think both this and the final board will need to be 4 layers. It's going to be too congested otherwise.
Anyway, here's the fruits of a week's work:
The final version won't use tactile switches of course. Nobody wants to play using those. The schematic is also missing the battery management IC and connector (which I'm still researching). Since I don't need these to run the thing for development, I've not bothered yet.
So, we're nearly there towards having something physical to demonstrate. The next step is to lay this lot out on a PCB, and route it. Since it's only a dev board, I'm not too bothered about using the autorouter (normally I steer away as it's not brilliant at its job). The real thing will need more care. Either way, I think both this and the final board will need to be 4 layers. It's going to be too congested otherwise.
Anyway, here's the fruits of a week's work:
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