Do it it would amazingly cool to be able load an midi file in to a firmware and have a hidden mode that plays the lights theme song
Not only disco modes anymore but an actual music producing disco mode
Although i suspect something like that would take up alot of room in the attiny, but with all these new bigger attiny’s being discussed maybe someday it could be possible……
It’s cool, but with all the floppy drive symphonies and Tesla coil synthesizers, I think it’s already well-trodden territory. I think I’ll try to focus on making more useful stuff instead, like that off-time dual-pwm firmware people keep requesting.
Okay, that would indeed be a fun project… infrared laser programmed to play music on objects in the distance.
I’m not aware of whether lasers can turn on and off fast enough, but otherwise it seems like it should work. Maybe I should ask over at the laser forums. A quick wikipedia scan suggests it should be feasible though.
Perhaps a wide-beam laser instead of a narrow beam? Like, more focused than a SK-68 but not as much as a typical laser pointer? It’d be really cool to be able to trigger the effect from across a room.
At a party, people could walk into the projected wide beam laser that is creating the disco ball effect and have their shirt/jacket/dress/chest hair/whatever sing their own specific pattern.
The Zener is really actually pretty easy. There’s a “limiting” or “load” resistor, that’s the 100 ohm or 200 ohm or whatever resistor that’s placed on D1’s normal location. So one end of that resistor is wired directly to the MCU’s Vcc. The Zener is also wired directly to the MCU’s Vcc as well as GND. The cathode (striped end) goes towards Vcc, the other end goes to GND.
The Zener will self destruct without a current limiting resistor. It behaves sort of like a low-resistance short to GND. That’s why we add the resistor between Vin (BAT+) and the Zener, it prevents things from getting out of control and allows the Zener to pull Vcc down to the desired voltage.
I’d either put mine diagonally across D1 and R2 (from Vcc to GND) or horizontally from D1 across to FET pins 1-3 (GND).
Post a picture with the Zener laying in place and I’ll verify whether it’s correct.
EDIT: please try and fix the strike-through in your quote of the OP. For whatever reason it’s not working and I’d rather not have anyone get confused. Stacking on C1 is not acceptable for this driver.
You can also double check that the black lead contact is clear on the star. I’ve seen that either touch the copper star or the side of the pill and give that result.
Check like Richard said that the lead on the mosfet isn’t touching the pill when it’s installed. The black lead from the driver, grounded out, bypasses the driver and goes direct drive.