Ok, so I just finished routing a TeensySaber V4 board.
Unlike the Proffieboard V3 and M2, there is no reason for this one to remain hypothetical. I’ll try to post some pictures tomorrow, but this ain’t your grandpa’s TeensySaber, here’s what’s on the board:
- Mates with a Teensy 4.0
- Uses contact springs to access the SD card pads on the bottom of the Teensy, which should give us super-high SD card speeds. (UHS-I), and leave more pads available for other stuff.
- Just about everything on the board is optional and can be dropped if you want to keep things simple.
- Spaces for both MPU-6050 AND LSM6DSM (although I wouldn’t expect anybody to use both, it’s just to make it easier to find components.)
- Low-current cutoff circuit. (no need for a high-current switch.)
- Reverse polarity protection.
- USB charging
- Space for 6 FETs on the bottom. (3 with through-hole connectors, 3 with flat pads.)
- Same Booster & Amplifier as V2 proffieboards.
- PCB design follows Oshpark 4-layer rules.
It still needs a lot of cleanup before it’s done though.
I might also go through and replace the 0402 components with 0603 components to make it more DIY-friendly.
And of course, all of this is completely untested so far.
Not sure if I’m going to try to make and sell these though, or if it’s just for DIY yet, as I haven’t quite figured out how I’m going to test them yet.