Frost uses a nice!nano v2, and a 110mah battery that will last up to 5 months. The nice!nano gives it bluetooth, and my configuration gets all the parts for under $150(other than the case). Also uses Cherry clip-in stabilizers and kailh hotswap sockets and M2(4mm) heatset inserts and screws to fasten the pcb to the case. Frost is OSHWA certified with UID US002745.
| Item | Cost |
|---|---|
| MCU (nice!nano v2) | $25.00 |
| Battery (110mAh) | $3.00 |
| Switches | $19.30 |
| PCB | $58.23 |
| Stabilizers | $9.50 |
| Hotswap Sockets | $0.99 |
| Fasteners | $3.66 |
| Diodes | $1.99 |
| Keycaps | $16.99 |
| Foam | $9.99 |
| Total | $148.65 |
- MCU: https://bit.ly/43MxEzh (Free shipping, $25+)
- Battery: https://bit.ly/4mHn5pD (Free shipping with mcu)
- Switches: https://bit.ly/4dSzwen - MMD Princess Tactile 48g x90, under $20
- Stabilizers: https://bit.ly/3FuRC9E - KBD Fans, Cherry Clip in PCB Mount, pre lubed
- Hotswap Sockets: https://bit.ly/4dIZlgY
- Fasteners(3.2mm diameter on the heatset inserts, m2 heatsets and screws): https://bit.ly/43L1Xq4 and https://bit.ly/3Zae3aP
- Diodes: random aliexpress brand, doesnt matter which one since they're all very cheap
- Keycaps: Any
- Foam: https://www.amazon.com/HONKID-Keyboard-Foam-Mechanical-3mm/dp/B0CPPNF7NR?sr=8-4
Made with Fusion 360. Available at /case. Also includes the plate.
The firmware was made with ZMK, since the MCU for the keyboard(a nice!nano v2) was built specifically for use with ZMK. ZMK has inbuilt bluetooth support as well as support for displaying the batery capacity on the paired device. Firmware is at /firmware.
