802.15.4, Bluetooth, NFC Bluetooth v5.2, NFC, Thread, Zigbee Transceiver Module 2.4GHz Integrated, Chip Surface Mount BL5340 module

Seeed Studio XIAO nRF52840 Plus, powered by Nordic chipset with FPU, brings more SMD pins to our popular Bluetooth-enabled board. While maintaining all the capabilities of the standard version including Bluetooth 5.0, NFC, and low power consumption, this Plus variant features redesigned castellations and pad layout on the back, offering 9 additional GPIOs specifically for advanced Bluetooth projects requiring expanded I/Os via SMD board-to-board soldering.

Seeed Studio XIAO nRF52840 Sense Plus, powered by Nordic chipset with FPU, brings more SMD pins to this tiny Bluetooth senor dev board. While maintaining all the capabilities of the standard version including onboard IMU and PDM microphone, Bluetooth 5.0, NFC, and low power consumption, this Plus variant features redesigned castellations and pad layout on the back, offering 9 additional GPIOs specifically for advanced Bluetooth projects requiring expanded I/Os via SMD board-to-board soldering. With native TensorFlow Lite, it's your ideal development platform for advanced embedded Machine Learning and AIoT projects.

33V (Typ) Clamp 2.7A (8/20µs) Ipp Tvs Diode Surface Mount 2-X1SON (1x0.6) The ESD601-Q1 is a bidirectional ESD protection diode. The ESD601-Q1 is offered in the industry standard 0402 (DPY) package, and offers an IEC 61000-4-2 protection level of 15kV. The device can clamp 8/20μs surges with peak pulse currents up to 2.7A in accordance with the IEC 61000-4-5 standard. The low capacitance and low leakage current provide protection against transient events in a variety of systems and applications. This protection is key for many applications, such as smaller form factors and faster data speeds, which are becoming more popular over time. Features • IEC 61000-4-2 ESD Protection: – ±15kV contact discharge – ±15kV air gap discharge • ISO 10605 (330pF, 330Ω) ESD Protection: – ±12kV contact discharge – ±15kV air-gap discharge • IEC 61000-4-5 surge protection: – 2.7A (8/20µs) • I/O capacitance: 0.3pF (typical) • Ultra low leakage current: 1nA (typical) • Low dynamic resistance 0.9Ω (typical) • Industry standard 0402 package 2 Applications • Automotive Antenna ESD Protection • RF Signal ESD Protection • Near Field Communications (NFC) • Automotive SerDes w/Power over Coax • USB Type-C (short-to-Vbus tolerant) #CommonPartsLibrary #Diode #TVS

Bluetooth Low Energy 5.0 SiP module, nRF52832-based, 6.5 x 6.5 x 1.15 mm 52-pad package with optional internal or external antenna The ANNA-B112-01B is an ultra-compact, stand-alone Bluetooth® Low Energy (BLE) 5 module developed by u-blox. It is built around the Nordic nRF52832 SoC, which integrates a powerful Arm Cortex-M4 processor with FPU, RF circuitry, memory, and antenna in a single System-in-Package (SiP). This module is designed for industrial and IoT applications, offering a combination of high performance, low power consumption, and small size. It supports both host-controlled operation (AT commands via u-connectXpress) and standalone embedded applications (open CPU mode), giving designers flexibility in system architecture. 🔑 Key Features 🧠 Processing & Memory 64 MHz Arm Cortex-M4 CPU with FPU 512 KB Flash and 64 KB RAM Supports open CPU (run user firmware directly on module) 📡 Wireless Connectivity Bluetooth 5.0 (BLE) compliant Supports: GATT client & server Bluetooth mesh Simultaneous central + peripheral roles Data rate up to 2 Mbps 📶 RF & Antenna Operates at 2.4 GHz ISM band Integrated chip antenna Optional external antenna via antenna pin Range up to ~160 m (internal antenna) 🔌 Interfaces & Peripherals Communication interfaces: UART, SPI, I²C, I²S Additional features: ADC (12-bit) PWM, PDM Up to 25 GPIOs Supports NFC (for pairing / data) ⚙️ Software & Development Comes with u-connectXpress firmware: AT command interface Serial Port Service (SPS) Easy integration without deep BLE stack knowledge Supports development using: Nordic SDK Arm Mbed Supports FOTA (Firmware Over-The-Air updates) 🔋 Power & Electrical Supply voltage: 1.7V to 3.6V Optimized for low-power applications Sleep current as low as ~300 nA 📦 Physical Characteristics Ultra-compact size: 6.5 × 6.5 × 1.2 mm Package: 52-pin SMD module Operating temperature: –40°C to +85°C 🌍 Certifications Globally pre-certified (FCC, CE, etc.) Reduces time and cost for product certification

The Wio-WM1110 Dev Kit is an all-in-one solution for developing low-power, long-range IoT positioning applications. Based on Wio-WM1110 Wireless Module, features Semtech's LoRa® technology for long-range wireless communication, GNSS, and Wi-Fi for location tracking, and also supports Bluetooth Low Energy, Bluetooth mesh, NFC, Thread, and Zigbee.

RFID Reader IC 13.56MHz FeliCa, ISO 14443, ISO 15693, MIFARE, NFC SPI 1.65V ~ 1.95V, 3V ~ 3.6V 40-VFQFN Exposed Pad #CommonPartsLibrary #IntegratedCircuit #RF #RFID #Reader

NFC/RFID Tags & Transponders High performance HF reader / NFC initiator 1.4 W supporting VHBR and AAT #CommonPartsLibrary #NFC/RFID #Transponders

RFID Reader/Transponder IC 13.56MHz FeliCa, ISO 14443, ISO 15693, MIFARE, NFC I2C, SPI 2.6V ~ 5.5V 32-UFQFN Exposed Pad #CommonPartsLibrary #IntegratedCircuit #RFID #RF-access #ST25R

RFID Reader IC 13.56MHz ISO 14443, NFC SPI 2.4V ~ 5.5V 32-VFQFN Exposed Pad #CommonPartsLibrary #NFC/RFID #Transponders

IC RF TxRx + MCU 802.15.4, Bluetooth Bluetooth v5.4, Matter, Thread, Zigbee® 47-XFBGA, WLCSP # NRF54L15-CAAA-R7 ## General Description The NRF54L15-CAAA-R7 is an ultra-low-power wireless System-on-Chip (SoC) developed by [Nordic Semiconductor](https://www.nordicsemi.com?utm_source=chatgpt.com) for advanced Internet of Things (IoT), industrial, medical, smart home, and wireless sensing applications. The device integrates a high-performance Arm Cortex-M33 processor, a dedicated RISC-V coprocessor, large embedded memory resources, and a multiprotocol 2.4 GHz radio subsystem into a compact package. It is designed to provide exceptional energy efficiency, robust wireless connectivity, and enhanced security while supporting modern wireless standards including Bluetooth® Low Energy, Matter, Thread, Zigbee®, Bluetooth Mesh, Amazon Sidewalk, and proprietary 2.4 GHz protocols. The device is optimized for battery-powered applications requiring extended operating life, high processing capability, and scalable connectivity solutions. ## Key Features ### Processing Architecture * 128 MHz Arm® Cortex®-M33 application processor * Integrated 128 MHz RISC-V coprocessor * TrustZone® security architecture ### Memory Resources * 1.5 MB Non-Volatile Memory (NVM) * 256 KB RAM ### Wireless Connectivity * Multiprotocol 2.4 GHz RF transceiver * Bluetooth® Low Energy support * Matter support * Thread support * Zigbee® support * Bluetooth Mesh support * Amazon Sidewalk support * Proprietary 2.4 GHz protocol support * Bluetooth Channel Sounding capability * Compatible with Wi-Fi companion devices ### RF Performance * Data rates up to 4 Mbps * Output power up to +8 dBm * High receiver sensitivity for extended wireless range ### Security Features * Hardware cryptographic engine * Side-channel attack protection * Tamper detection mechanisms * Secure boot and secure firmware update support ### Peripheral Interfaces * SPI * I²C (TWI) * UART * I²S * GPIO * ADC * PWM * PDM * NFC * QDEC ### Power Characteristics * Ultra-low-power operation * Optimized sleep modes * Battery-powered application support * Operating supply voltage from 1.7 V to 3.6 V ### Package Information * WLCSP package * Surface-mount technology * Industrial operating temperature support ## Applications * Smart Home Devices * Industrial IoT Systems * Wearable Electronics * Medical and Healthcare Devices * Asset Tracking Solutions * Wireless Sensors * Building Automation Systems * Smart Lighting Controls * Consumer Electronics * Connected Peripheral Devices #NordicSemiconductor #nRF54L15 #NRF54L15CAAAR7 #BluetoothLE #Matter #Thread #Zigbee #IoT #WirelessSoC #EmbeddedSystems #IndustrialIoT #SmartHome #LowPowerDesign #CortexM33 #RISCV

27.12 MHz ±10ppm Crystal 10pF 50 Ohms 4-SMD, No Lead # 7M-27.120MEEQ-T Crystal Unit Engineering Specification ## General Description The 7M-27.120MEEQ-T is a surface-mount quartz crystal resonator designed to provide a stable and accurate frequency reference for digital, wireless, communication, NFC, RFID, microcontroller, and embedded system applications. Manufactured by TXC Corporation, this crystal offers reliable frequency stability, low equivalent series resistance, and compact packaging suitable for space-constrained designs. Its surface-mount construction enables automated assembly while maintaining excellent electrical performance across a wide range of operating conditions. ## Features * Fundamental mode quartz crystal resonator * Surface-mount device package for automated PCB assembly * High frequency accuracy and stability * Low equivalent series resistance * Low power consumption * Suitable for clock generation and timing circuits * RoHS compliant construction * Reliable performance for industrial and consumer electronics applications ## Electrical Characteristics * Nominal Frequency: 27.120 MHz * Crystal Type: Fundamental Mode * Load Capacitance: 10 pF * Frequency Tolerance: ±20 ppm * Frequency Stability: ±20 ppm * Equivalent Series Resistance: 60 Ω Maximum * Drive Level: Low-power operation * Operating Temperature Range: Industrial grade * Storage Temperature Range: Extended environmental capability ## Mechanical Characteristics * Package Type: Surface-Mount Crystal * Mounting Style: SMD/SMT * Compact footprint optimized for high-density PCB layouts * Four-pad no-lead package construction ## Applications * PN532 NFC Controllers * RFID Readers and Writers * Microcontroller Clock Sources * Wireless Communication Modules * Embedded Systems * Industrial Control Electronics * Consumer Electronic Devices * IoT and Smart Device Platforms ## Compliance * RoHS Compliant * Lead-Free Construction * Suitable for Automated Assembly Processes #7M27_120MEEQT #TXC #CrystalResonator #SMDCrystal #QuartzCrystal #27_120MHz #PN532 #NFC #RFID #EmbeddedSystems #TimingReference #ElectronicsDesign

RFID Reader IC 13.56MHz NFC, ISO 15693 I²C 1.62V ~ 5.5V 8-SOIC (0.154", 3.90mm Width) #CommonPartLibrary #IntegratedCircuit #RF #RFID

RFID Transponder IC 13.56MHz ISO 14443, NFC I2C 2.7V ~ 5.5V 8-UFDFN Exposed Pad #CommonPartsLibrary #IntegratedCircuit #RF #RFID #RF-Access #Monitoring-IC #M24SR64

2.41uH Inductor @ targeted 13.56MHz NFC Inductor Played around in the [ST coil calculator](https://eds.st.com/antenna/#/) assumption: dielectric constant of 4.5 trace thickness of 35um (1oz/sqft) results: 40x40mm 300um trace width 410um spacing 5 turns #NFC #coil #inductor #pcbinductor

IC RF TxRx + MCU 802.15.4, Bluetooth Bluetooth v5.0, Thread, Zigbee® 2.4GHz 48-VFQFN Exposed Pad The NRF52840-QFAA-F-R belongs to Nordic’s nRF52 series and supports multiple wireless standards including Bluetooth 5, Bluetooth Low Energy (BLE), Thread, Zigbee, ANT, and proprietary 2.4 GHz protocols. It features a 64 MHz ARM Cortex-M4F CPU with floating-point unit (FPU), making it suitable for both wireless communication and real-time embedded processing. The device integrates large memory resources, rich peripherals, USB support, NFC capability, and advanced security features, reducing the need for external components in wireless embedded designs. Key Features 32-bit ARM Cortex-M4F processor running at 64 MHz 1 MB Flash memory and 256 KB RAM Supports Bluetooth 5 / BLE, Thread, Zigbee, ANT, and proprietary 2.4 GHz protocols IEEE 802.15.4 compliant radio Up to +8 dBm TX output power High receiver sensitivity down to −103 dBm Data rates up to 2 Mbps Ultra-low power consumption for battery-powered applications USB 2.0 Full-Speed controller NFC-A tag support Multiple communication interfaces: SPI UART I2C (TWI) I2S PWM PDM ADC Up to 48 GPIOs Integrated ARM CryptoCell-310 security engine Operating voltage range: 1.7 V to 5.5 V Operating temperature: −40°C to +85°C Compact 48-QFN (6×6 mm) package Typical Applications BLE devices Smart home products Wearables Wireless sensors Industrial IoT HID devices (keyboard/mouse) Asset tracking Mesh networking devices USB dongles and gateways PCB Design Notes Community PCB reviews commonly recommend: Proper RF grounding and 50-ohm antenna routing Using ESD/TVS protection on USB lines Keeping RF matching components close to the antenna Using solid ground planes for 2.4 GHz performance #CommonPartsLibrary #IntegratedCircuit #RF

RFID Reader IC 13.56MHz NFC, ISO 15693 I²C 1.62V ~ 5.5V 8-SOIC (0.154", 3.90mm Width)

RF System on a Chip - SoC Multiprotocol Bluetooth 5.3 SoC supporting Bluetooth Low Energy, Bluetooth mesh, NFC, Thread and Zigbee

The Wio-WM1110 Dev Kit is an all-in-one solution for developing low-power, long-range IoT positioning applications. Based on Wio-WM1110 Wireless Module, features Semtech's LoRa® technology for long-range wireless communication, GNSS, and Wi-Fi for location tracking, and also supports Bluetooth Low Energy, Bluetooth mesh, NFC, Thread, and Zigbee.

RFID Reader/Transponder IC FeliCa, ISO 14443, ISO 15693, MIFARE, NFC I2C, SPI 2.4V ~ 5.5V 36-UFBGA, WLCSP

RFID Reader/Transponder IC 13.56MHz FeliCa, ISO 14443, MIFARE, NFC I²C, SPI, UART 2.5V ~ 3.6V #RFID #Reader #commonpartslibrary

Change History from V1: -13.56MHz tuning -larger instruction font -put some stuff on the back I wanted to create a business card that has some functionality and shows off a bit of my portfolio IRL: -NFC to my flux page -here's the awesome [instructables](https://www.instructables.com/PCB-Business-Card-With-NFC/) -Put a bunch of modules on it Find the BoM [here](https://www.digikey.com/short/2db2vnmp)

NFC/RFID EEPROM Memory IC – A contactless memory device with 64-Kbit EEPROM storage, supporting 13.56 MHz NFC communication and I²C interface for wired access. It operates from 1.8 V to 5.5 V supply voltage and is available in an 8-pin TSSOP package. #NFC #RFID #EEPROM #MemoryIC #ST25DV64K

RFID Reader/Transponder IC 13.56MHz FeliCa, ISO 14443, MIFARE, NFC I2C, SPI, UART 2.7V ~ 5.5V 40-VFQFN Exposed Pad #CommonPartsLibrary #IntegratedCircuit #RFID

IC RF TxRx + MCU Bluetooth Bluetooth v5.3 2.4GHz 48-VFQFN Exposed Pad NRF52832-QFAA-R7 is an ultra-low-power wireless System-on-Chip (SoC) from Nordic Semiconductor, designed for Bluetooth Low Energy (BLE), ANT, NFC, and proprietary 2.4 GHz wireless applications. It integrates a high-performance ARM Cortex-M4F processor, memory, peripherals, and a 2.4 GHz radio into a single chip, making it ideal for IoT devices, wearables, wireless sensors, beacons, and smart peripherals. GHz protocols • 2.4 GHz transceiver • -96 dBm sensitivity in Bluetooth® low energy mode • Supported data rates: 1 Mbps, 2 Mbps Bluetooth® low energy mode • -20 to +4 dBm TX power, configurable in 4 dB steps • On-chip balun (single-ended RF) • 5.3 mA peak current in TX (0 dBm) • 5.4 mA peak current in RX • RSSI (1 dB resolution) • ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz • 215 EEMBC CoreMark® score running from flash memory • 58 μA/MHz running from flash memory • 51.6 μA/MHz running from RAM • Data watchpoint and trace (DWT), embedded trace macrocell (ETM), and instrumentation trace macrocell (ITM) • Serial wire debug (SWD) • Trace port • Flexible power management • 1.7 V–3.6 V supply voltage range • Fully automatic LDO and DC/DC regulator system • Fast wake-up using 64 MHz internal oscillator • 0.3 μA at 3 V in System OFF mode • 0.7 μA at 3 V in System OFF mode with full 64 kB RAM retention • 1.9 μA at 3 V in System ON mode, no RAM retention, wake on RTC • Memory • 512 kB flash/64 kB RAM • 256 kB flash/32 kB RAM • Nordic SoftDevice ready • Support for concurrent multi-protocol • Type 2 near field communication (NFC-A) tag with wakeup-on-field and touchto-pair capabilities • 12-bit, 200 ksps ADC - 8 configurable channels with programmable gain • 64 level comparator • 15 level low power comparator with wakeup from System OFF mode • Temperature sensor • 32 general purpose I/O pins • 3x 4-channel pulse width modulator (PWM) unit with EasyDMA • Digital microphone interface (PDM) • 5x 32-bit timer with counter mode • Up to 3x SPI master/slave with EasyDMA • Up to 2x I2C compatible 2-wire master/slave • I2S with EasyDMA • UART (CTS/RTS) with EasyDMA • Programmable peripheral interconnect (PPI) • Quadrature decoder (QDEC) • AES HW encryption with EasyDMA • Autonomous peripheral operation without CPU intervention using PPI and EasyDMA • 3x real-time counter (RTC) • Single crystal operation • Package variants • QFN48 package, 6 × 6 mm • WLCSP package, 3.0 × 3.2 mm #CommonPartsLibrary #IntegratedCircuit