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cat ear blinky toy (JLCPCB turn-key assembly process capabilities test)
Jlc katzen is an open-source printed circuit board by ArcaneNibble, from the ArcaneNibble/jlc-katzen repository on GitHub. It is a 4-layer board of 59.4 × 51.7 mm with 62 parts on 94 nets, routed with 687 tracks and 125 vias.
It is built around the RP2040, W25Q128JVSIQ and IRM-H638T/TR2, with the XC6206P332MR among its other parts. Its parts include 17 capacitors, 17 diodes, 15 resistors, 5 connectors and 4 ICs. It belongs with the RP2040 boards of this library.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | SK9822-2020 | custom_parts:LED-SK9822-2020 | D1, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17 |
| 10 | 0.1 uF | Capacitor_SMD:C_0402_1005Metric | C7, C8, C9, C10, C11, C12, C13, C14, C15, C17 |
| 7 | 1k | Resistor_SMD:R_0402_1005Metric | R4, R7, R9, R10, R11, R14, R15 |
| 3 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 1 uF | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R8 |
| 2 | 18 pF | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | 4.7 uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x04 | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | J2, J3 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 12 MHz 20 pF X322512MSB4SI | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 200 | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 4.7 uF | Capacitor_SMD:C_0402_1005Metric | C16 |
| 1 | Conn_01x02 | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J4 |
| 1 | Conn_ARM_SWD_TagConnect_TC2030 | Connector:Tag-Connect_TC2030-IDC-FP_2x03_P1.27mm_Vertical | J5 |
| 1 | IRM-H638T/TR2 | custom_parts:IRM-H6XXT | U4 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U3 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | W25Q128JVSIQ | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U2 |
| 1 | XC6206P332MR | Package_TO_SOT_SMD:SOT-23-3 | U1 |

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makeo/PicoLoader
A cheap and easy to install modchip for the Nintendo GameCube!

sd2psx/pcb
The PCB must be produced in 0.8mm thickness. Production files are provided under the "Releases" tab. These do not include the through-hole OLED module.

deltabeard/DBGC
A Game Boy cartridge using the Raspberry Pi RP2040 with RTC and MBC support.

ergomechstore/rp2040-bento
The RP2040-bento is a breakout board for the RP2040 MCU.
xiphonics/picoTracker-pcb
Buy the official kit at xiphonics store # Trademark Notice


ramonimbao/SpaceInvadersFRL
An F-rowless TKL keyboard case, plate, and PCB that uses the HiTek Series 725 switches.
It measures 59.4 × 51.7 mm and has 4 copper layers, 1.39 mm thick.
62 parts, built around the RP2040, W25Q128JVSIQ, IRM-H638T/TR2 and XC6206P332MR. 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.
From the ArcaneNibble/jlc-katzen repository on GitHub, at the commit this page was made from: the board is jlc-katzen.kicad_pcb and its schematic jlc-katzen.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask ArcaneNibble before reusing the design.