CaribouLite RPi HAT: Fully open source dual-channel SDR Raspberry Pi HAT with tuning range up to 6 GHz (schematic, PCB, source code, etc.)

CaribouLite is an affordable open source dual-channel software-defined radio (SDR) platform and an SDR-focused FPGA development framework implemented as a Raspberry Pi (RPi) HAT. CaribouLite turns your Raspberry Pi single-board computer (SBC) into a standalone dual-channel radio Tx/Rx with a tunable spectrum up to 6 GHz. CaribouLite gives you complete control over its hardware, including FPGA, firmware, and all supporting software. With the deeply integrated IceStorm toolchain, writing your own FPGA applications couldn't be easier. You can reuse many Verilog modules, such as the SPI and SMI modules, to support custom applications for CaribouLite hardware.

Schematic PCB

PEGODA contactless smart card reader based on MFRC523

PEGODA contactless smart card reader based on MFRC523

Schematic PCB

14 mm x 14 mm dual layer antenna reference board for ST25DV04K dual interface EEPROM

ST25DV04K Dual Interface EEPROM 14 mm x 14 mm Dual Layer Antenna Reference Board

Schematic PCB

NTAGI²C Plus Flex Kit, includes additional Flex Antenna

The add-on kit for the NTAG I²C+ Explorer Kit (Interconnected NFC Tag) contains Category 4, Category 5 and Category 6 Flex antennas.

Schematic PCB

M24SR based dynamic NFC tag expansion board for STM32 Nucleo

Dynamic NFC tag expansion board for STM32 Nucleo, based on M24SR

Schematic PCB

Open source desktop two-wheeled legged robot

The circuit board in the project is drawn using Jiali Chuang EDA, and the code uses Arduino IDE, which is very suitable for beginners who are interested in robots.

The software, hardware, and mechanical structure are all open source.

Schematic PCB

M24LR16E-R demo board, for reference only

Demo board for M24LR16E-R, for archival purposes only

Schematic PCB

15 mm x 15 mm dual layer antenna reference board for M24LR16E-R dual interface EEPROM, for reference only

15 mm x 15 mm dual layer antenna reference board for M24LR16E-R dual interface EEPROM, for archival purposes only

Schematic PCB

OM5578: Development kit for the PN7150 plug-and-play NFC controller

PN7150 development kit for RaspberryPi, BeagleBone Black and boards with Arduino interface, including: LPCXpresso, Kinetis Freedom and i.MX boards.

Schematic PCB

FRDM-KW019032: Freedom Development Board for Kinetis ^® KW0x

NXP FRDM-KW019032 is a development board for the MKW01Z128CHN platform and a member of the Kinetis ^® W series MCUs in the SubGHz ISM band.

Schematic PCB

14 mm x 14 mm Dual Layer Antenna Reference Board for M24SR64 Dual Interface EEPROM

M24SR64 Dual Interface EEPROM 14 mm x 14 mm Dual Layer Antenna Reference Board

Schematic PCB

EMVCo reference design for ST25R3911B high-performance HF reader

EMVCo reference design for ST25R3911B high performance HF reader/writer

Schematic PCB

Chhavi: ESP32 based fingerprint sensor with optional NFC (source code, etc.)

Chhavi is a tiny, wireless, touch capacitive fingerprint sensor with high-end security features, support for ultra-low power operation and optional NFC connectivity. Its open source firmware is fully compatible with the Arduino IDE. Chhavi is powered by ESP32 and features an FPC BM-Lite fingerprint sensor by Fingerprints, giving you and your projects access to the excellent biometric hardware found in many smartphones. Unlike optical fingerprint sensors that are large and power-hungry, this capacitive biometric sensor is small, accurate, and energy-efficient. During our design process, we determined that NFC communication would be a powerful feature for many of the same applications that might require a high-quality fingerprint sensor, but we could not find a major ESP32-driven NFC controller. So we built one into Chhavi as an optional feature. We've also added an optional battery to simplify installation and facilitate mobile deployment. The result is a tiny device with a cutting-edge fingerprint reader, Wi-Fi and Bluetooth capabilities, as well as support for NFC and battery power when needed.

Schematic PCB

45 mm x 75 mm flexible antenna reference board for M24LR04E-R dual interface EEPROM, for reference only

M24LR04E-R 45 mm x 75 mm flexible antenna reference board for dual interface EEPROM, for archival purposes only

Schematic PCB

MRB-KW0x: Modular reference design board for Kinetis KW0x series MCUs

The NXP MRB-KW0x is a modular reference board for MKW01Z128CHN platform, part of the Kinetis W series of MCUs.

Schematic PCB

CR95HF development board, for reference only

Development board for CR95HF, for archiving only

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Zhihuijun open source super mini smart NFC card (schematic diagram, PCB, source code, etc.)

With electronic ink screen, can simulate various IC cards

Schematic PCB

45 mm x 75 mm antenna reference board for M24LR16E-R, for reference only

45 mm x 75 mm antenna reference board for M24LR16E-R, for archival purposes only

Schematic PCB

NTAG I ² C + Explorer Kit with NFC Reader

The NTAG I²C+ Explorer Kit is an all-in-one demonstration/development resource for NFC connected tags. Additional NFC readers included.

Schematic PCB

Advantech's EWM-W306: NXP 88W8997 M.2 1216