Keyaan-07/ZenCore1A pico-sized STM32 Devboard with a μSD card reader!
ZenCore is an open-source printed circuit board by Keyaan-07, from the Keyaan-07/ZenCore repository on GitHub, published under the MIT licence. It is a 2-layer board of 51 × 21 mm with 34 parts on 51 nets, routed with 529 tracks and 98 vias.
It is built around the TPS62162DSG and W25Q128JVSIQ. Its parts include 12 capacitors, 9 resistors, 4 connectors, 3 ICs and 2 diodes. It belongs with the microcontroller boards boards and the STM32 boards of this library.
Zencore F4 is a low-cost, Pico sized STM32F411 Development board along with an SD card reader for SDMMC development. The footprint is breadboard compatible and it features the W25Q128JVS 128Mbit Flash chip for non-volatile storage. Unlike traditional devboards, this features a compact form factor. The pins are labelled on the bottom side of the PCB.
I want to use the stm32f411 mcu for a bigger project and thus i will be experimenting with this one(hence the SD card interface). Just plug in the USB-C to your PC and upload the code via STM32cubeIDE to get started.
To build this, clone/download this repository, and in the /hardware/production folder, use the files and the bom to order the parts yourself and assemble it by hand!
See the board on KiCanvas
| Designator | Function | Value | Footprint | Quantity | Price | Amount | Order | Link |
|---|---|---|---|---|---|---|---|---|
| PCB | PCB | 21x51 | 2 layer board | 5 | 0.42 | 2.1 | Yes | https://jlcpcb.com |
| PCB Stencil | Stencil | 40x55 | stencil | 1 | 3.05 | 3.05 | Yes | https://jlcpcb.com |
| C1, C10, C12, C2, C3, C4 | Capacitor | 100n | 402 | 12 | 0.0075 | 0.09 | No | https://www.lcsc.com/product-detail/C426067.html |
| C11 | Capacitor | 10u | 603 | 2 | 0.02 | 0.04 | No | https://www.lcsc.com/product-detail/C7393892.html |
| C5 | Capacitor | 1u | 402 | 20 | 0.03 | 0.6 | yes | https://www.lcsc.com/product-detail/C1518208.html |
| C6 | Capacitor | 4.7u | 402 | 10 | 0.04 | 0.4 | Yes | https://www.lcsc.com/product-detail/C426094.html |
| C7, C8 | Capacitor | 22p | 402 | 4 | 0.03 | 0.12 | No | https://www.lcsc.com/product-detail/C882567.html |
| C9 | Capacitor | 22u | 603 | 10 | 0.014 | 0.14 | Yes | https://www.lcsc.com/product-detail/C86295.html |
| D1, D2 | LED | LED | 402 | 50 | 0.01 | 0.5 | Yes | https://www.lcsc.com/product-detail/C7496805.html |
| J1 | SD card connector | Micro_SD_Card | microSD_HC_Molex_104031-0811 | 2 | 0.63 | 1.26 | Yes | https://www.lcsc.com/product-detail/C585350.html |
| J2 | USB-C Receptacle | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | 10 | 0.066 | 0.66 | Yes | https://www.lcsc.com/product-detail/C393939.html |
| J3, J4 | header | Conn_01x20_Pin | PinHeader_1x20_P2.54mm_Vertical | 2 | DNP | DNP | DNP | DNP |
| L1 | Inductor | 2.2u | 805 | 5 | 0.1 | 0.5 | Yes | https://www.lcsc.com/product-detail/C48945029.html |
| R1, R2, R3, R7, R9 | Resistors | 5.1k | 402 | 10 | 0.005 | 0.05 | No | https://www.lcsc.com/product-detail/C278598.html |
| R10, R4 | Resistors | 100k | 402 | 4 | 0.02 | 0.08 | No | https://www.lcsc.com/product-detail/C313329.html |
| R5, R6 | Resistors | 100R | 402 | 4 | 0.037 | 0.148 | No | https://www.lcsc.com/product-detail/C427204.html |
| SW1, SW2 | Switch | SW_Push | SW-SMD_L3.9-W3.0-P4.45 | 10 | 0.056 | 0.56 | Yes | https://www.lcsc.com/product-detail/C720477.html |
| U1 | flash chip | W25Q128JVS | SOIC-8_5.3x5.3mm_P1.27mm | 2 | DNP | DNP | DNP | DNP |
| U2 | MCU | STM32F411CEUx | QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | 2 | 3.87 | 7.74 | Yes | https://www.lcsc.com/product-detail/C60420.html |
| U3 | Buck Convertor | TPS62162DSG | WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm_ThermalVias | 2 | 0.86 | 1.72 | Yes | https://www.lcsc.com/product-detail/C40256.html |
| Y1 | Crystal | 25MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | 2 | 0 | No | https://www.lcsc.com/product-detail/C521601.html | |
| Shipping | 3.9 | |||||||
| Shipping(PCB) | 11.13 | |||||||
| Total | 34.788 |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C10, C12 |
| 5 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R7, R9 |
| 2 | 100R | Resistor_SMD:R_0402_1005Metric | R5, R6 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R4, R10 |
| 2 | 22p | Capacitor_SMD:C_0402_1005Metric | C7, C8 |
| 2 | Conn_01x20_Pin | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J3, J4 |
| 2 | LED | LED_SMD:LED_0402_1005Metric | D1, D2 |
| 2 | SW_Push | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW1, SW2 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 2.2u | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 22u | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C6 |
| 1 | Crystal_GND24_Small | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Molex_104031-0811 | J1 |
| 1 | STM32F411CEUx | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U2 |
| 1 | TPS62162DSG | Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm_ThermalVias | U3 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J2 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U1 |
stanleyondrus/LaserProjectorV2
LaserProjector V2 is a battery-powered, ESP32-based laser XY scanner using stepper motors to deflect the beam. It has auto-homing functionality, and can be controlled wirelessly (Wi-Fi & Bluetooth).
martinribelotta/h730duino
STM32H7 Arduino form factor and software compatible board
doublej380-pixel/OpenDriftRC
Open source drift gyro based on Waveshare ESP32-S3 1.64inch AMOLED touch display development board
Pegoku/Monopoly-Electronic-V2
Gameplay focuses on NFC interaction instead of menus.
It measures 51 × 21 mm and has 2 copper layers, 1.6 mm thick.
34 parts, built around the TPS62162DSG and W25Q128JVSIQ. 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 Keyaan-07/ZenCore repository on GitHub, at the commit this page was made from: the board is hardware/zencore.kicad_pcb and its schematic hardware/zencore.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
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).