A project finished because of Open Sauce! One of the booths was a building custom speakers with old car stereo drivers, mostly as DIY projects for kids, and I mentioned I had a speaker project I was working on. He asked about the size and then handed me two drivers and a little Bluetooth amp board. Today I finished gutting the broken Profoto pack and “delicately” installed the board, speaker, and a random USB battery pack

I still want to make some improvements, mostly around power management. The battery can’t be charged, nor can the system be power off, without removing the front plate with six screws. The plan is to use the main power switch and wire in some battery cells with a charge controller. I’d also love to connect some of the interface dials to control volume or the EQ or something. That will require a new amp board and possibly some custom firmware

Found a battery charger and some voltage regulators and put everything on a perf board. I also wired up the power switch and LED so the whole thing can actually be switched off and recharged without opening it up

Best switches and buttons on a Bluetooth speaker. Hands down.

The final touch is replacing the mains power connector with USB-C for charging

I need to make some adjustments to the dummy head connectors, the mounting hole spacing isn’t quite right, especially when there are multiple side-by-side, which is why they don’t all have screws. That will be a tomorrow problem