2 layers87 × 97 mm
2 layers42 × 83 mm
MatrixBuddyPCB
BadRAM/MatrixBuddyFriendly face via MAX7219
- Size
- 42 × 83 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 49
- Pads
- 155
- Tracks, vias
- 242, 26
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 28 Nov 2023
- Updated
- 19 Apr 2024
Overview
MatrixBuddyPCB is an open-source printed circuit board by BadRAM, from the BadRAM/MatrixBuddy repository on GitHub. It is a 2-layer board of 42 × 83 mm with 32 parts on 49 nets, routed with 242 tracks and 26 vias.
Its parts include 4 resistors, 3 ICs, 3 connectors, 3 switches and 2 capacitors. It belongs with the SAM D and SAM boards of this library.
README
README.mdA friend shaped device, using a MAX7219 driven LED matrix.
Features:
- Matrix Buddy posesses the GREAT EMOTIONAL STRENGTH to grin through any mood, should you need TOTAL AFFIRMATION. Press the bell to toggle, Buddy will wink to acknowledge, or blink when it is released.
- Worried about light pollution? Matrix Buddy can read the room! Sleep mode activates in near darkness. Press the left paw to configure it's light threshold. The light sensor is on the back, make sure it's not covered.
- Not light polluted enough? Press the right paw to configure brightness. Unleash the power of the sun!
- Connect to a computer using the bridge program and matrix buddy can mouth along to your apps. Give a face to that cameras-off zoom call!
To set up the Matrix Buddy Bridge app, you will first need to install the included serial drivers (CM212364_Setup.exe) and restart your computer. Run MatrixBuddyBridge.exe and press "Scan", if a device is found, you're ready, just uncheck "Mute" when you're ready for the buddy to start.
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | VAL** | My_Footprints:mouse-bite-2mm-slot | mouse-bite-2mm-slot, mouse-bite-2mm-slot, mouse-bite-2mm-slot, mouse-bite-2mm-slot, mouse-bite-2mm-slot, mouse-bite-2mm-slot |
| 3 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2, SW3 |
| 1 | 0.1uF | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C1 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2 |
| 1 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 4104 | Package_SO:SO-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | 47K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | BATT Connector | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Horizontal | J1 |
| 1 | Conn_01x08_Socket | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J2 |
| 1 | LOGO | LOGO | G*** |
| 1 | MAX7221xWG | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U1 |
| 1 | Q_PMOS_GSD | PCM_Package_TO_SOT_SMD_AKL:SOT-23W_Handsoldering | Q1 |
| 1 | R_Photo | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | R1 |
| 1 | SeeeduinoXIAO | Seeeduino-Xiao:Seeeduino XIAO-MOUDLE NO-BOTTOM-CONNECTIONS | U3 |
| 1 | ~ | My_Footprints:8x8 LED Matrix | D1 |
The 24 most common of 32 parts.
Questions
How big is the MatrixBuddyPCB PCB?
It measures 42 × 83 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MatrixBuddyPCB use?
32 parts. 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 MatrixBuddyPCB KiCad files?
From the BadRAM/MatrixBuddy repository on GitHub, at the commit this page was made from: the board is MatrixBuddyPCB/MatrixBuddyPCB.kicad_pcb and its schematic MatrixBuddyPCB/MatrixBuddyPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MatrixBuddyPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask BadRAM before reusing the design.
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