4 layers21 × 51 mm
Easyduino RP2040
Hanqaqa/Easyduino
Easily dive into different PCB KiCad designs of the most popular microcontroller devboards
65 parts755CERN-OHL-P-2.0
2 layers86.4 × 50.8 mm
MicrocontrollerInputModule
cscott/X1CarbonGen1033Keyboard with Trackpoint for Framework 16 laptop: hardware design
- Size
- 86.4 × 50.8 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 57
- Nets
- 73
- Pads
- 256
- Tracks, vias
- 1,450, 157
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Jan 2024
- Updated
- 30 Jun 2024
Overview
MicrocontrollerInputModule is an open-source printed circuit board by cscott, from the cscott/X1CarbonGen10 repository on GitHub. It is a 2-layer board of 86.4 × 50.8 mm with 57 parts on 73 nets, routed with 1,450 tracks and 157 vias.
It is built around the RP2040, W25Q16JVUXIQ and 0.3K-HX-45PWB. Its parts include 23 capacitors, 9 resistors, 5 diodes, 3 ICs and 2 connectors. It belongs with the RP2040 boards of this library.
Main components
3
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q16JVUXIQ
USON-8-EP(2x3)-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI USON-8-EP(2x3) NOR FLASH ROHSWinbond ElecNOR FLASH
0.3K-HX-45PWB
SMD,P=0.3mm,卧贴-55℃~+85℃ 0.2mm 0.3mm 1mm 45P Hinged Lid Surface Mount, Right Angle Top Contact SMD,P=0.3mm,卧贴 FFC, FPC (Flat Flexible) Connector Assemblies ROHSHDGCFFC, FPC (Flat Flexible) Connector Assemblies
README
README.mdInput Module for Thinkpad X1 Carbon Gen 10 keyboard
This module is based on the "Microcontroller Input Module" example from https://github.com/FrameworkComputer/InputModules which in turn is based on the Adafruit Feather RP2040 (https://www.adafruit.com/product/4884).
More discussion of this project, and of replacement keyboards for the Framework 16 laptop generally, can be found in the Framework forums.
License
Input Modules © 2023 by Framework Computer Inc is licensed under CC BY 4.0.
This module for the Thinkpad X1 Carbon Gen 10 keyboard is © 2024 by C. Scott Ananian and is also licensed under CC BY 4.0.
To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Fabrication and Assembly
A 0.8mm PCB is recommended.
All components are SMT on the bottom side of the board.
To enter boot mode on the RP2040 to reflash, hold down the "Fn" key on the keyboard as power is applied.
BOM
You can find alternatives for just about each of these components except for the microcontroller. The keyboard FPC is designed to be inserted with contacts facing down toward the PCB, which is "up" (since the connector is on the bottom side of the board) and thus will require folding the keyboard's FPC cable to achieve the proper orientation.
Notes: 1uF caps are 2.2uF in pico reference design and it had one more 100nF cap on 1v1; match crystal caps to crystal selected.
| Item # | Designator | Qty | Manufacturer | Mfg Part # | Description / Value | Package/Footprint | Type |
|---|---|---|---|---|---|---|---|
| 1 | C1, C4, C6, C9, C11, C12, C13, C14, C15, C16, C17, C18, C20 | 13 | Samsung | CL05B104KO5NNNC | 100nF | Capacitor_SMD:C_0402_1005Metric | SMT |
| 2 | C2, C3 | 2 | Murata | GRM1555C1H150JA01D | 15pF | Capacitor_SMD:C_0402_1005Metric | SMT |
| 3 | C5, C8, C19, C21, C22, C23 | 6 | TDK | C1608X5R1A106M080AC | 10uF | Capacitor_SMD:C_0603_1608Metric | SMT |
| 4 | C7, C10 | 2 | Samsung | CL05A105KO5NNNC | 1uF | Capacitor_SMD:C_0402_1005Metric | SMT |
| 5 | D1, D2, D3, D4, D5 | 5 | Littelfuse | SP0402B-ULC-01ETG | D_TVS | Diode_SMD:D_0402_1005Metric | SMT |
| 6 | H1, H2 | 2 | Keystone | 24929 | 24929 | InputModule:MountingHole_3.7mm_Pad_24929 | SMT |
| 7 | J2 | 1 | HDGC | 0.3K-HX-45PWB | 45-pin FPC connector | 20655-045E-01:0.3K-HX-45PWB | SMT |
| 8 | R1, R3 | 2 | Yageo | RC0402FR-071KL | 1k | Resistor_SMD:R_0402_1005Metric | SMT |
| 9 | R2 | 1 | Yageo | RC0402FR-07330KL | 330k | Resistor_SMD:R_0402_1005Metric | SMT |
| 10 | R4, R5 | 2 | Panasonic | ERJ-2RKF27R0X | 27 | Resistor_SMD:R_0402_1005Metric | SMT |
| 11 | R6, R7, R8, R9 | 4 | Panasonic | ERJ-2RKF1000X | 100 | Resistor_SMD:R_0402_1005Metric | SMT |
| 12 | U1 | 1 | Winbond | W25Q16JVUXIQ | W25Q16JVUXIQ | InputModule:SON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm | SMT |
| 13 | U2 | 1 | Raspberry Pi | RP2040TR7 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | SMT |
| 14 | U3 | 1 | Microchip | MCP23S17_ML | MCP23S17_ML | Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | SMT |
| 15 | Y1 | 1 | Abracon | ABM8G-12.000MHZ-18-D2Y-T | 12.000MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | SMT |
Parts
57| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C4, C6, C9, C11, C12, C13, C14, C15, C16, C17, C18, C20 |
| 6 | 10uF | Capacitor_SMD:C_0603_1608Metric | C5, C8, C19, C21, C22, C23 |
| 5 | D_TVS | Diode_SMD:D_0402_1005Metric | D1, D2, D3, D4, D5 |
| 4 | 100 | Resistor_SMD:R_0402_1005Metric | R6, R7, R8, R9 |
| 4 | Tooling Hole | 20655-045E-01:JLCPCB Tooling Hole | H5, H6, H7, H8 |
| 2 | 15pF | Capacitor_SMD:C_0402_1005Metric | C2, C3 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R3 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C7, C10 |
| 2 | 24929 | InputModule:MountingHole_3.7mm_Pad_24929 | H1, H2 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | MountingHole | MountingHole:MountingHole_2.1mm | H3, H4 |
| 1 | 0.3K-HX-45PWB | 20655-045E-01:0.3K-HX-45PWB | J2 |
| 1 | 12.000MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 330k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | BOOTSEL | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | CLK | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | Conn_02x04_Odd_Even | InputModule:PogoPads_2x4_P2.0mm | J1 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | INT | TestPoint:TestPoint_Pad_D1.0mm | TP6 |
| 1 | MCP23S17_ML | Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U3 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U2 |
| 1 | SWD | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | W25Q16JVUXIQ | InputModule:SON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm | U1 |
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Questions
How big is the MicrocontrollerInputModule PCB?
It measures 86.4 × 50.8 mm and has 2 copper layers, 0.8 mm thick.
What parts does the MicrocontrollerInputModule use?
57 parts, built around the RP2040, W25Q16JVUXIQ and 0.3K-HX-45PWB. 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 MicrocontrollerInputModule KiCad files?
From the cscott/X1CarbonGen10 repository on GitHub, at the commit this page was made from: the board is MicrocontrollerInputModule.kicad_pcb and its schematic MicrocontrollerInputModule.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MicrocontrollerInputModule design in my own project?
Its repository states no licence, so its author keeps all rights: ask cscott before reusing the design.