Therefore I will stick with the MPU, I'm very satisfied with its performance when it comes to clash and swing detection.
The power saving options will be back soon, I did not yet publish it, but I already built in a DIYino Prime v1.5 ...... WIth the DIYino v1.5 it changed .
It is actually an MPU6050 and somehow I agree that for a lightsaber project it might be an overkill, however it is a perfect match to my DIYino lightsaber board family, as I found a source I can order them cheaper as the regular price for simpler acc/gyros like the ADXL chips. Therefore I will stick with the MPU, I'm very satisfied with its performance when it comes to clash and swing detection.
There is just one thing that I'd like to suggest, if you don't mind: regarding the simple MOSFET drivers, I would prefer to have a constant-current driver like the one described here (the second one on the page). It requires (per driver) an extra NPN transistor, a resistor, and leads for an external resistor that controls the max current, but it is more efficient than the simple MOSFET switch.I am looking forward to seeing the performance of the lastest version!
where I see a bit of an improvement potential is the linearity: a mosfet is a non-linear device i.e. the current of the load will not increase linerly proportional to the PWM voltage, which for our purpose means that the LEDs will not light up evenly with increasing PWM. There is an optimum range somewhere along the lower half and above that the extra gain is minimal. If this could be overcome then it would warrant a reconsideration.
has anyone considered this?https://www.adafruit.com/products/2795I know it's not using the DFPlayer so no amp, but would it be viable?
You could use it as an MCU, sure. But it's not a sound board, it's just an Arduino with a built in SD card slot for storage.
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