2 layers30 × 50 mm
Remmy mcu board
ndxw/RemmyMouse
Remmy uses PJRC's USB mouse library found here, modified to support five mouse buttons.
26 parts
2 layers79 × 66 mm
Mouse
ndxw/RemmyMouseRemmy uses PJRC's USB mouse library found here, modified to support five mouse buttons.
- Size
- 79 × 66 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 61
- Nets
- 60
- Pads
- 192
- Tracks, vias
- 294, 17
- Pours
- 169
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 25 Feb 2025
- Updated
- 22 Jun 2025
Overview
Mouse is an open-source printed circuit board by ndxw, from the ndxw/RemmyMouse repository on GitHub. It is a 2-layer board of 79 × 66 mm with 61 parts on 60 nets, routed with 294 tracks and 17 vias.
It is built around the ATMEGA32U4-MU and PMW3360DM-T2QU. Its parts include 16 capacitors, 11 resistors, 9 ICs, 3 switches and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-MU
VQFN-44-EP(7x7)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
PMW3360DM-T2QU
DIP-16Low-power mode、Interrupt output、Self-test function DIP-16 Specialized Sensors ROHSPixArtSpecialized Sensors
README
README.mdRemmy uses PJRC's USB mouse library found here, modified to support five mouse buttons.
Parts
61| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | TestPoint | Custom_FP:TestPoint_THTPad_D1.75mm_Drill1.0mm | TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP19 |
| 8 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C4, C6, C7, C8, C10, C11, C14, C15 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C3, C9, C12, C13 |
| 4 | Kailh GM 8.0 | Custom_FP:Kailh_GM_8.0 | U5, U6, U7, U8 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R4, R11 |
| 2 | 10p | Capacitor_SMD:C_0201_0603Metric | C1, C2 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5, R6 |
| 2 | 22 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2, R3 |
| 2 | MCP1825S | Imported_FP:SOT-223_3MC_MCH | U1, U3 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 39 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R7 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 68 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9 |
| 1 | 82 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10 |
| 1 | ATmega32U4-M | Custom_FP:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm_noGNDPlane | U4 |
| 1 | AVR-JTAG-10 | Connector_PinSocket_2.54mm:PinSocket_2x05_P2.54mm_Vertical | J2 |
| 1 | LED | LED_THT:LED_D5.0mm | D1 |
| 1 | LED_RGBA | LED_THT:LED_D5.0mm-4_RGB_Wide_Pins | D2 |
| 1 | NX3225SA-16 | Custom_FP:CS14520-16M | U2 |
| 1 | PMW3360DM-T2QU | Custom_FP:PMW3360DM-T2QU | U9 |
| 1 | RotaryEncoder | Custom_FP:Encoder_TTC_Silver | SW2 |
| 1 | SW_Push | Custom_FP:SW_PUSH_12mm | SW1 |
| 1 | SW_Push | Custom_FP:SW_PUSH_6mm | SW3 |
| 1 | USB_B_Micro | Custom_FP:CONN_10118193-0001LF_AMP_MicroUSB-B | J1 |
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Questions
How big is the Mouse PCB?
It measures 79 × 66 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mouse use?
61 parts, built around the ATMEGA32U4-MU and PMW3360DM-T2QU. 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 Mouse KiCad files?
From the ndxw/RemmyMouse repository on GitHub, at the commit this page was made from: the board is schematics/remmy_prototype_board/Mouse.kicad_pcb and its schematic schematics/remmy_mcu_board/remmy_mcu_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mouse design in my own project?
Its repository states no licence, so its author keeps all rights: ask ndxw before reusing the design.