Mongus48
About the Mongus48 PCB
Mongus48 is an open source PCB design by ChrisChrisLoLo, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 228.6 × 100 mm, with 111 components from 14 distinct parts.
Other key parts include the SeeeduinoXIAO, 74HC595 and TRRS. By type, the board carries 51 switches, 48 diodes, 4 ICs, 2 connectors, 2 resistors and 1 LED.
It belongs with the keyboards designs in this gallery.
From the project
The magnetic, modular, 20-key macropad that can join together to form an ortholinear board
Main components on the Mongus48
Mongus48 bill of materials (BOM)
111 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SeeeduinoXIAO | Seeeduino XIAO-MOUDLE14P-2.54-21X17.8MM | U1 |
| 2 | 74HC595 | SOP-16_3.9x9.9mm_P1.27mm | U2, U3 |
| 1 | TRRS | TRRS-PJ-320A | U5 |
| 1 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Conn_01x04_Female | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | LL4148 | D_MiniMELF | RD1 |
| 1 | RotaryEncoder_Switch | RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | RSW1 |
| 12 | locked | Kailh_socket_MX | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +4 |
| 39 | SW_SPST | Kailh_socket_MX | SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20 +31 |
| 1 | OLED | OLED_v2 | OL1 |
| 20 | LL4148 | D_MiniMELF | D1, D2, D3, D4, D5, D6, D7, D8 +12 |
| 28 | LL4148 | D_MiniMELF | D21, D22, D23, D24, D25, D26, D27, D28 +20 |
| 1 | C_Polarized_US | CP_Elec_6.3x7.7 | C1 |
| 2 | R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2 |
Mongus48 design files
The KiCad project lives in the ChrisChrisLoLo/beyblock20 repository on GitHub; these links point at the commit this page was built from.
Mongus48: common questions
How big is the Mongus48 PCB?
The Mongus48 measures 228.6 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mongus48?
111 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Mongus48 design files?
From the ChrisChrisLoLo/beyblock20 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Mongus48 design in my own project?
Yes, under the terms of its GPL-3.0 license, which ChrisChrisLoLo chose for the repository.
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