Mioke80B
About the Mioke80B PCB
Mioke80B is an open source STM32 PCB design by phpbbireland, published on GitHub. It is a 2-layer board measuring 376 × 124 mm, with 323 components from 22 distinct parts.
Its main chip is the STM32F072CBT6, from the STM32 family. Other key parts include the PRTR5V0U2X and XC6206PxxxMR-Regulator_Linear. By type, the board carries 99 LEDs, 99 diodes, 12 capacitors, 4 resistors, 3 ICs and 2 switches.
It belongs with the keyboards designs in this gallery.
From the project
QMK Based Open Hardware Keyboard with 99 Keys
Just another open source / open hardware ~80% keyboard...
Ref: https://hackaday.io/project/197065-mioke80-iso-99-key-80-keyboard
+ Schematic complete... + Software 80% complete... + QMK/VIA code tested on Blackpill 411 Dev Board (see blackpill_version)... working 11th August 2024 + Keyboard works... Now loads in usevia.app... Needed work to get RGB and Encoder working...
Main components on the Mioke80B
Mioke80B bill of materials (BOM)
323 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32F072CBT6 | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | PRTR5V0U2X | SOT-143 | U2 |
| 1 | XC6206PxxxMR-Regulator_Linear | SOT-23 | U3 |
| 1 | Conn_01x04_Pin | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J2 |
| 2 | SW_SPST | SW_SPST_TL3342 | BOOT1, RST1 |
| 1 | 500mA | Fuse_1206_3216Metric | F1 |
| 84 | MX_SW_HS | SW_MX_HS_CPG151101S11_1u | MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +76 |
| 1 | MX_SW_HS | SW_MX_HS_CPG151101S11_1.5u | MX37 |
| 2 | MX_SW_HS | SW_MX_HS_CPG151101S11_1.75u | MX55, MX64 |
| 8 | MX_SW_HS | SW_MX_HS_CPG151101S11_1.25u | MX72, MX89, MX90, MX91, MX93, MX94, MX95, MX96 |
| 3 | MX_SW_HS | SW_MX_HS_1U | MX75, MX78, MX81 |
| 1 | MX_SW_HS | SW_MX_HS_2.75U | MX84 |
| 1 | Volume/RGB | RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | ROTARY1 |
| 1 | MX_stab | Stabilizer_MX_6.25u | S1 |
| 1 | MX_stab | Stabilizer_MX_3.00u | S2 |
| 99 | WS2812B | LED_WS2812B-2020_PLCC4_2.0x2.0mm | RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8 +91 |
| 99 | 4148 | Diode_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +91 |
| 9 | 100nF | C_0402_1005Metric | C1, C3, C4, C5, C6, C7, C8, C11 +1 |
| 1 | 47uF | C_0805_2012Metric | C2 |
| 1 | 1uF | C_0402_1005Metric | C9 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10uF | C_0805_2012Metric | C10 |
| 4 | 5.1k | R_0402_1005Metric | R1, R2, R3, R4 |
Mioke80B design files
The KiCad project lives in the phpbbireland/mioke80 repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad2/Mioke80B.kicad_pcb
- Schematickicad2/Mioke80B.kicad_sch
Mioke80B: common questions
What microcontroller does the Mioke80B use?
The Mioke80B is built around the STM32F072CBT6, from the STM32 family.
How big is the Mioke80B PCB?
The Mioke80B measures 376 × 124 mm, has 2 copper layers and is 1.2 mm thick.
How many components are on the Mioke80B?
323 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mioke80B design files?
From the phpbbireland/mioke80 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mioke80B design in my own project?
The repository has no license, so all rights stay with phpbbireland. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mioke80B without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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