The Adafruit Feather nRF52 Bluefruit is another easy-to-use all-in-one Bluetooth Low Energy board, with a native-Bluetooth chip, the nRF52832! It's an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging.

The Adafruit Feather nRF52 Bluefruit is another easy-to-use all-in-one Bluetooth Low Energy board, with a native-Bluetooth chip, the nRF52832! It's an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging.

4.7 µH Shielded Drum Core, Wirewound Inductor 2.6 A 105mOhm Max 2-SMD The SRP4020TA-4R7M is a compact surface-mount power inductor designed for use in high-efficiency power conversion and energy storage applications. It is optimized for switching regulators, DC-DC converters, and filtering circuits where stable inductance, low core loss, and reliable current handling are required. The device features a magnetically shielded construction that minimizes electromagnetic interference, making it suitable for densely populated electronic assemblies. Its robust design supports consistent performance across a wide range of operating conditions, contributing to improved system efficiency and reduced noise. Construction and Materials The component is manufactured using a ferrite core with integrated winding, enclosed in a molded structure that provides mechanical stability and environmental protection. The shielding structure reduces flux leakage and enhances electromagnetic compatibility. External terminations are designed for reliable solderability and strong adhesion to standard printed circuit board pads. Electrical Characteristics The inductor provides a nominal inductance corresponding to its designation and maintains stability under rated operating conditions. It exhibits low direct current resistance to minimize conduction losses and supports moderate to high current levels without significant saturation. The component is engineered to maintain performance over variations in temperature and frequency typical of switching power applications. Thermal Performance The device is capable of operating within standard industrial temperature ranges, with thermal characteristics that support efficient heat dissipation through the PCB. Its construction helps maintain inductance stability and prevents degradation under thermal stress. Mechanical Characteristics The package is a low-profile, surface-mount form factor suitable for automated assembly. The compact footprint enables use in space-constrained designs, while the structure ensures durability during handling and reflow soldering processes. Applications Typical applications include step-down and step-up voltage regulators, power management modules, portable electronics, telecommunications equipment, and general-purpose filtering where compact size and efficient performance are critical. Reliability and Compliance The component is designed to meet common industry reliability standards for surface-mount passive devices. It is compatible with standard reflow soldering processes and is typically compliant with environmental regulations governing hazardous substances. #commonpartslibrary #inductor

XIAO MG24 is an ultra-low-power wireless development board based on Silicon Labs' EFR32MG24 SoC, featuring a high-performance 78MHz ARM Cortex®-M33 core. It‘s Matter® native over Thread® and Bluetooth® Low Energy 5.3, all supported by the Arduino® Core. With 4MB Flash onboard, 19 GPIOs, LED, and charging circuit, it boasts extremely low operating current and ultra-low-power modes, making it an ideal choice for IoT applications, especially battery-powered projects utilizing Matter® protocols.

Bluetooth Low Energy 5.0 transceiver module, nRF52832-based, 1.7-3.6 V supply, 6.5 x 6.5 mm SMD-52 package

XIAO MG24 is an ultra-low-power wireless development board based on Silicon Labs' EFR32MG24 SoC, featuring a high-performance 78MHz ARM Cortex®-M33 core. It‘s Matter® native over Thread® and Bluetooth® Low Energy 5.3, all supported by the Arduino® Core. With 4MB Flash onboard, 19 GPIOs, LED, and charging circuit, it boasts extremely low operating current and ultra-low-power modes, making it an ideal choice for IoT applications, especially battery-powered projects utilizing Matter® protocols. This model is used for through holes dip-14 connectors instead of SMD.

The ESP32-C3-MINI-1-N4 is a compact, low-power wireless module from Espressif Systems built around the ESP32-C3 SoC. It integrates a 32-bit RISC-V single-core processor, 2.4 GHz Wi-Fi, Bluetooth 5 Low Energy (BLE), onboard flash memory, crystal oscillator, RF circuitry, and PCB antenna in a small surface-mount package. The module is designed for IoT devices, smart home products, industrial automation, sensor nodes, wearable devices, and other wireless embedded applications. Key Features 32-bit RISC-V Single-Core CPU Up to 160 MHz operating frequency Optimized for low-power IoT applications Integrated Memory 4 MB embedded Flash (N4 version) 400 KB SRAM 384 KB ROM 8 KB RTC SRAM Wireless Connectivity IEEE 802.11 b/g/n Wi-Fi (2.4 GHz) Data rates up to 150 Mbps Bluetooth 5 LE support Bluetooth Mesh capability Simultaneous Wi-Fi and Bluetooth operation using a shared antenna Security Features Secure Boot Flash Encryption Hardware cryptographic acceleration RSA, AES, HMAC, and Digital Signature support Rich Peripheral Set Up to 15 GPIOs UART SPI I²C I²S USB Serial/JTAG PWM TWAI (CAN 2.0 compatible) SAR ADC Timers and Watchdog timers Temperature sensor Integrated Components On-board PCB antenna 40 MHz crystal oscillator RF matching circuitry No external RF design required Power Supply Operating voltage: 3.0 V to 3.6 V Designed for low-power applications Environmental Specifications Operating temperature: −40°C to +85°C (N4 variant) RoHS and REACH compliant #module #RF-Transceiver #ESP32-C3

XIAO MG24 Sense is an ultra-low-power wireless development board based on Silicon Labs' EFR32MG24 SoC, featuring a high-performance 78MHz ARM Cortex®-M33 core. It‘s Matter® native over Thread® and Bluetooth® Low Energy 5.3, all supported by the Arduino® Core. With 4MB Flash onboard, 19 GPIOs, LED, and charging circuit onboard, it boasts extremely low operating current and ultra-low-power modes, making it an ideal choice for IoT applications, especially battery-powered projects utilizing Matter® protocols. Additionally, the onboard analog microphone and six-axis IMU sensors make XIAO MG24 Sense a great fit for TinyML applications such as posture detection

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

Accelerometer X, Y, Z Axis ±2g, 4g, 8g 6.25Hz ~ 200Hz 12-LGA (2.2x2.3) The ADXL367BCCZ-RL7 is an ultra-low power, three-axis MEMS accelerometer developed by Analog Devices for motion sensing applications requiring extremely low energy consumption and high measurement stability. The device integrates precision acceleration sensing, embedded motion detection capabilities, and intelligent power management features within a compact surface-mount package suitable for portable and battery-operated systems. The accelerometer supports both I²C and SPI digital communication interfaces, enabling flexible integration with embedded processors, microcontrollers, and sensor hubs. Its architecture is optimized for continuous motion monitoring while maintaining exceptionally low current consumption, making it ideal for wearable electronics, asset tracking devices, medical monitoring equipment, industrial sensing systems, and Internet of Things platforms. The device incorporates embedded activity, inactivity, and wake-up detection functions that allow host processors to remain in low-power states until significant motion events occur. Integrated FIFO buffering and programmable interrupt functionality reduce processor overhead and improve overall system efficiency. The ADXL367BCCZ-RL7 is designed for robust operation across a wide operating temperature range and maintains high measurement accuracy with low noise and excellent long-term stability. The compact LGA package enables dense PCB layouts for space-constrained designs. Key Features Motion Sensing Three-axis digital accelerometer Selectable acceleration measurement ranges High-resolution motion detection Low noise sensing architecture Integrated temperature sensor Power Management Ultra-low power operation optimized for battery-powered systems Multiple operating and standby modes Autonomous motion-triggered wake-up capability Efficient duty-cycling support Digital Interfaces Supports SPI communication Supports I²C communication Programmable interrupt outputs Embedded FIFO data buffering Embedded Detection Functions Activity detection Inactivity detection Motion-triggered interrupt generation Autonomous wake-up monitoring Mechanical and Environmental Compact LGA surface-mount package High shock tolerance Wide operating temperature capability Suitable for portable and industrial environments Electrical Characteristics Supply Requirements Low-voltage digital supply operation Optimized for low-current embedded systems Stable operation across supported voltage range Sensor Performance High sensitivity stability Low offset drift Low output noise density Configurable output data rates Communication and Control Supported Interfaces SPI serial interface I²C serial interface Programmability Configurable measurement ranges Adjustable output data rates Programmable interrupt mapping FIFO configuration support Package Information Package Type LGA surface-mount package Mounting PCB surface mount compatible Suitable for automated assembly processes Typical Applications Wearable electronics Health and fitness monitoring Portable instrumentation Asset and condition monitoring Industrial sensing systems IoT sensor nodes Motion-activated devices Battery-powered embedded systems #commonpartslibrary #integratedcircuit #accelerometer #sensor

ZMPT101B is a high-precision current-type voltage transformer designed for AC voltage sensing, monitoring, and power measurement applications. It provides excellent electrical isolation between high-voltage AC lines and low-voltage measurement circuits, making it ideal for energy monitoring systems, smart meters, power analyzers, and microcontroller-based projects using Arduino, ESP32, and similar platforms. Its compact size, high accuracy, and stable performance enable reliable AC voltage measurement while maintaining user safety through galvanic isolation. Key Features High-precision AC voltage measurement Excellent galvanic isolation (up to 4 kV isolation voltage) Wide operating voltage measurement range High accuracy and good linearity Low phase angle error Compact PCB-mount package Suitable for voltage and power monitoring applications Good consistency and long-term stability Compatible with signal conditioning and ADC circuits Operating temperature range: -40°C to +60°C #ZMPT101B #VoltageTransformer #ACVoltageSensor #PowerMonitoring #EnergyMeter #IsolationTransformer #Arduino #ESP32 #IoT #EmbeddedSystems #Electronics #SmartMeter

100 µH Shielded Drum Core, Wirewound Inductor 790 mA 610mOhm Max Nonstandard The 74477720 is a surface-mount power inductor from Würth Elektronik designed for power supply and DC-DC converter applications. It is optimized for efficient energy storage, current filtering, and EMI reduction in compact electronic designs. This inductor is commonly used in switching regulators, embedded systems, industrial electronics, automotive circuits, and consumer devices where stable power delivery and low electromagnetic interference are important. Key Features Shielded SMD power inductor construction for reduced EMI Compact footprint suitable for space-constrained PCB layouts Designed for switching regulator and power conversion circuits Low DC resistance for improved efficiency High current handling capability Stable inductance characteristics over operating conditions Suitable for automated SMT assembly processes Commonly used in buck, boost, and filtering applications #CommonPartsLibrary #Inductor #SMD