It’s for a friend who is currently building a party photobox and he needed some kind of triggerbutton for it. The software that he uses starts the photoseqeuence with the spacebar but having a keyboard connected to the box would be kinda meh (and it would probably get damaged quite fast. partypeople…)
So I made this instead.
It’s a standard palm button which I found on eBay. Inside is a [Nice!Nano](https://nicekeyboards.com/nice-nano/) BLE module (basically a bluetooth Arduino with integrated battery management) which is powered by a 1100mAh LiPo battery. The battery is massively overkill and should last for around 10 months if my calculations were correct.
The nice!nano is running [ZMK](https://zmk.dev/) firmware which makes the button act like a standard bluetooth keyboard. If you press it, it triggers a spacebar keypress on the connected host.
For turning the device on and off I used a 20mm toggleswitch that just happened to perfectly fit inside one of the cable cutouts of the button. Almost looks like it was made like this. [The USB-C port for charging](https://i.imgur.com/iZ4RuFn.jpg) is mounted with a 3D printed insert in the second cable cutout on the other side of the button.
A Bluetooth buzzer that I recently built.
It’s for a friend who is currently building a party photobox and he needed some kind of triggerbutton for it.
The software that he uses starts the photoseqeuence with the spacebar but having a keyboard connected to the box would be kinda meh (and it would probably get damaged quite fast. partypeople…)
So I made this instead.
It’s a standard palm button which I found on eBay.
Inside is a [Nice!Nano](https://nicekeyboards.com/nice-nano/) BLE module (basically a bluetooth Arduino with integrated battery management) which is powered by a 1100mAh LiPo battery.
The battery is massively overkill and should last for around 10 months if my calculations were correct.
The nice!nano is running [ZMK](https://zmk.dev/) firmware which makes the button act like a standard bluetooth keyboard.
If you press it, it triggers a spacebar keypress on the connected host.
For turning the device on and off I used a 20mm toggleswitch that just happened to perfectly fit inside one of the cable cutouts of the button. Almost looks like it was made like this.
[The USB-C port for charging](https://i.imgur.com/iZ4RuFn.jpg) is mounted with a 3D printed insert in the second cable cutout on the other side of the button.
The [electronics inside](https://i.imgur.com/xWzKCY0.jpg) are somewhat sketchy but it all works fine so far.