4 layers19 × 55 mm
4 layers43.8 × 61 mm
Tamagotchi
QTProjectsINC/Tamagotchi_hardwarePCB for tamagotchi project
- Size
- 43.8 × 61 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 73
- Pads
- 300
- Tracks, vias
- 509, 127
- Pours
- 39
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Aug 2025
- Updated
- 20 Aug 2025
Overview
Tamagotchi is an open-source printed circuit board by QTProjectsINC, from the QTProjectsINC/Tamagotchi_hardware repository on GitHub, published under the MIT licence. It is a 4-layer board of 43.8 × 61 mm with 85 parts on 73 nets, routed with 509 tracks and 127 vias.
It is built around the AT25EU0021A-MAHN-T, AP7343D-33W5 and MCP73833, with the FFC2B35-30-T, USL1G and ZVP1320FTA among its other parts. Its parts include 23 capacitors, 23 resistors, 14 diodes, 5 switches and 4 ICs. It belongs with the STM32 boards of this library.
Main components
6AT25EU0021A-MAHN-T
UDFN-8(2x3)NOR FLASHRenesas Electronics
AP7343D-33W5
SOT-25-40℃~+85℃@(Ta) 1 3.3V 300mA 300mV@(300mA) 35uA 5.25V 60uVrms 75dB@(1kHz) Enable、Short Circuit Protection、Thermal Shutdown Fixed Positive SOT-25 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MCP73833
UncategorisedMicrochip TechnologyFFC2B35-30-T
SMD,P=0.5mm,卧贴-25℃~+85℃ 0.3mm 0.5mm 2mm 30P Bottom Contact Hinged Lid Phosphor bronze Surface Mount, Right Angle Tin SMD,P=0.5mm,卧贴 FFC, FPC (Flat Flexible) Connector Assemblies ROHSGlobal Connector Technology (GCT)FFC, FPC (Flat Flexible) Connector Assemblies
USL1G
SOD-123F(SMF)Switching DiodesDIOTEC
ZVP1320FTA
SOT-23-55℃~+150℃ 1 P-Channel 200V 3.5V 350mW 35mA 50pF 5pF 80Ω@10V P-Channel SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.mdTamagotchi_hardware
PCB for tamagotchi project
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 10k | Resistor_SMD:R_0603_1608Metric | R2, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R19, R22, TH1 |
| 11 | 100n | Capacitor_SMD:C_0603_1608Metric | C4, C7, C8, C9, C10, C12, C13, C14, C15, C18, C19 |
| 7 | ~ | Marijn:SOD-523F | D6, D7, D8, D9, D10, D11, D12 |
| 6 | 1u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C6, C16, C22, C23 |
| 3 | 470 | Resistor_SMD:R_0603_1608Metric | R1, R3, R4 |
| 2 | 12p | Capacitor_SMD:C_0603_1608Metric | C20, C21 |
| 2 | 3v3 | TestPoint:TestPoint_Pad_D1.5mm | TP4, TP5 |
| 2 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C11, C17 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R5, R20 |
| 2 | GND | TestPoint:TestPoint_Pad_D1.5mm | TP3, TP6 |
| 1 | 10u | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 32.786KHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | 4u7 | PCM_Capacitor_Tantalum_SMD_AKL:CP_EIA-3216-18_Kemet-A | C5 |
| 1 | 50r | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 560k | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 5v6 | Diode_SMD:D_SOD-123 | D1 |
| 1 | 6V/2A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | A | Marijn:TSF-1178Z | SW1 |
| 1 | AP7343D-33W5 | Marijn:SOT-25 | U4 |
| 1 | APP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | AT25EU0021A-MAHN-T | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.75x1.45mm | U3 |
| 1 | B | Marijn:TSF-1178Z | SW2 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_PTS810 | SW4 |
| 1 | C | Marijn:TSF-1178Z | SW3 |
| 1 | CH_USB_C | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J1 |
| 1 | FFC2B35-30-T | Marijn:FFC2B35-30 | J3 |
| 1 | JTAG | Connector:Tag-Connect_TC2030-IDC-FP_2x03_P1.27mm_Vertical | J4 |
| 1 | MCP73833 | Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.58x2.35mm | U1 |
| 1 | NRST | Button_Switch_SMD:SW_SPST_PTS810 | SW5 |
| 1 | OLED_FB | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J2 |
| 1 | PG | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | PWR | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D13 |
| 1 | STAT1 | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | STAT2 | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | STATUS | LED_SMD:LED_0603_1608Metric | D14 |
| 1 | STM32U031K4Ux | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U2 |
| 1 | SWCLK | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | SWDIO | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | USL1G | Diode_SMD:D_SOD-123F | D5 |
| 1 | ZVP1320FTA | Marijn:SOT-323 | Q1 |
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Questions
How big is the Tamagotchi PCB?
It measures 43.8 × 61 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Tamagotchi use?
85 parts, built around the AT25EU0021A-MAHN-T, AP7343D-33W5, MCP73833 and FFC2B35-30-T. 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 Tamagotchi KiCad files?
From the QTProjectsINC/Tamagotchi_hardware repository on GitHub, at the commit this page was made from: the board is Tamagotchi/Tamagotchi.kicad_pcb and its schematic Tamagotchi/Tamagotchi.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tamagotchi design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).