2 layers99.7 × 162.5 mm
Micro redox split
makenova/micro_redox
A family of boards inspired by the microdox and ferris
20 parts13
2 layers281.8 × 166.9 mm
Micro redox semi split
makenova/micro_redox13A family of boards inspired by the microdox and ferris
- Size
- 281.8 × 166.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 96
- Nets
- 77
- Pads
- 497
- Tracks, vias
- 1,070, 51
- Pours
- 188
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Feb 2021
- Updated
- 23 Mar 2021
Overview
Micro redox semi split is an open-source printed circuit board by makenova, from the makenova/micro_redox repository on GitHub. It is a 2-layer board of 281.8 × 166.9 mm with 96 parts on 77 nets, routed with 1,070 tracks and 51 vias.
It is built around the ATMEGA32U4-AU and PRTR5V0U2X. Its parts include 36 switches, 35 diodes, 7 capacitors, 7 connectors and 6 resistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-AU
QFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH QFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
micro_redox_semi_split/README.mdmicro_redox_semi_split
Features
- USB C
- integrated mcu
- rotary encoder
- choc spaced
- hot-swap or soldered
There are production files in the "gerbers" directory for the pcb and a skeleton case. Simply upload the zip files to your PCB manufacturer of choice.
If you do not get this assembled by a factory you can find an interactive BOM in bom directory.
Starting firmware can be found on my QMK fork in the makenova branch.
Parts
96| Qty | Value | Footprint | References |
|---|---|---|---|
| 35 | D_Small | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +19 |
| 34 | SW_SPST | keyswitches:Kailh_socket_PG1350_optional | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +18 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C5, C6 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R6 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R5 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R3 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C7 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U2 |
| 1 | AVR-ISP-6 | Keebio-Parts:ICSP-Header-ZigZag | J1 |
| 1 | HRO-TYPE-C-31-M-12 | Keebio-Parts:HRO-TYPE-C-31-M-12-Assembly | USB1 |
| 1 | PB0 | Keebio-Parts:SinglePad | J5 |
| 1 | PB6 | Keebio-Parts:SinglePad | J2 |
| 1 | PC6 | Keebio-Parts:SinglePad | J3 |
| 1 | PC7 | Keebio-Parts:SinglePad | J4 |
| 1 | PE6 | Keebio-Parts:SinglePad | J6 |
| 1 | PF7 | Keebio-Parts:SinglePad | J7 |
| 1 | PRTR5V0U2X | Keebio-Parts:SOT-143B | U1 |
| 1 | Polyfuse_Small | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | Rotary_Encoder_Switch | Keebio-Parts:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW35 |
| 1 | SW_Push | Keebio-Parts:SW_SPST_TL3342 | SW36 |
More from makenova/micro_redox
1Similar boards
- 2 layers243.9 × 136.5 mm
Barobord
sadekbaroudi/barobord
I have spent a lot of time and money designing prototypes, testing, developing, etc. Any contributions would be greatly appreciated!
157 parts57 - 2 layers217.7 × 91.1 mm
- 2 layers298.8 × 122 mm
Ursaminor pcb
markstory/ursa-minor-keyboard
Design and schematics for the ursaminor keyboard
225 parts23 - 2 layers285.5 × 112.1 mm
- 2 layers242.3 × 75.4 mm
- 2 layers333.4 × 88.6 mm
Reverie
makenova/reverie
a mini 1800 keyboard based on the Elongate, Clarabelle, and Garbage Truck Keyboards
140 parts14 - 2 layers276.2 × 79.8 mm
- 2 layers255.7 × 260.9 mm
Questions
How big is the Micro redox semi split PCB?
It measures 281.8 × 166.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Micro redox semi split use?
96 parts, built around the ATMEGA32U4-AU and PRTR5V0U2X. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Micro redox semi split KiCad files?
From the makenova/micro_redox repository on GitHub, at the commit this page was made from: the board is micro_redox_semi_split/micro_redox_semi_split.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Micro redox semi split design in my own project?
Its repository states no licence, so its author keeps all rights: ask makenova before reusing the design.