ADXL345 iMEMS® Accelerometer, 3 Axis Sensor Evaluation Board The ADXL345 measures acceleration in three axes (X, Y, Z) and outputs digital data via either I²C or SPI interfaces. It is widely used in applications like tilt sensing, vibration monitoring, free-fall detection, and motion-based user interfaces. Its high resolution (up to 13-bit) allows it to detect very small changes in motion, making it suitable for both consumer electronics and industrial applications. Key Features 3-axis acceleration measurement (X, Y, Z) Selectable measurement ranges: ±2g, ±4g, ±8g, ±16g High resolution (13-bit) with up to 4 mg/LSB sensitivity Digital output interfaces: I²C and SPI Low power consumption: ideal for battery-powered devices Built-in motion detection functions: Tap and double-tap detection Free-fall detection Activity and inactivity monitoring Wide bandwidth range: supports various data rates for different applications Operating voltage: typically 2.0V to 3.6V Compact package: small LGA form factor suitable for space-constrained designs Common Applications Smartphones and tablets (screen rotation, motion sensing) Wearable devices and fitness trackers Gaming controllers Robotics and drones Vibration and shock monitoring systems #commonpartslibrary #developmentboard #evaluationboard #sensor

Video Switch IC GPIO, I2C HDMI 1.3a 64-TQFP (10x10) Package #commonpartslibrary #integratedcircuit #videoswitch

Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount The SHT41-AD1B-R2 is a fully calibrated, low-power environmental sensor that measures relative humidity (RH) and temperature. It integrates sensing elements, signal processing, and a digital interface into a small surface-mount package, making it ideal for space-constrained designs. Key Features Sensor Type: Digital humidity and temperature sensor Interface: I²C (easy MCU integration) Supply Voltage: ~1.08 V to 3.6 V Humidity Accuracy: up to ±1.8% RH (typical) Temperature Accuracy: up to ±0.2 °C (typical) Response Time: Fast measurement and low latency Power Consumption: Ultra-low, suitable for battery devices Package: DFN (compact, ~1.5 × 1.5 mm) Factory Calibration: No external calibration required Functional Overview The sensor uses capacitive humidity sensing combined with a bandgap temperature sensor. Internal electronics convert these measurements into digital data via I²C, eliminating the need for external ADCs or complex signal conditioning. Design Advantages Small footprint for compact PCBs Low power consumption for IoT and portable devices High reliability with long-term stability Fast response time for real-time monitoring Simple integration with microcontrollers Typical Applications IoT and smart home devices HVAC and climate control systems Wearables and portable electronics Industrial monitoring systems Environmental data logging #CommonPartsLibrary #Sensors,-Transducer #Humidity #Moisture-Sensor #SHT4x

I/O Expander 16 I2C, SMBus 400 kHz 24-TSSOP #CommonPartsLibrary #IntegratedCircuit #Interface #I/O-Expander #PCF8575

Optical Sensor Ambient I²C 6-SMD, No Lead #commonpartslibrary #opticalsensor #ambient

Humidity, Temperature 0 ~ 100% RH I2C ±2% RH 15 s Surface Mount

Multiplexer Switch ICs 4-CH I2C MUX W/INTERRUPT TSSOP-20 #CommonPartLibrary #IntegratedCircuits #Interface #Specialized #PCA9544

Accelerometer X, Y, Z Axis ±2g, 4g, 8g 1.5kHz 14-CLCC (6x6) General Description The ADXL355BEZ is a low noise, low drift, low power, three-axis MEMS accelerometer intended for high-precision sensing applications. It delivers high-resolution digital acceleration data with excellent long-term stability and minimal temperature-induced variation. The device integrates a complete sensing chain, including the MEMS sensor element, analog conditioning, analog-to-digital conversion, and digital filtering. Output data is provided through SPI or I²C interfaces, enabling straightforward integration into embedded and industrial systems. Key Features Three-axis acceleration sensing (X, Y, Z) Selectable full-scale ranges: ±2 g, ±4 g, ±8 g Low noise density (~25 µg/√Hz) Low offset and minimal temperature drift High-resolution 20-bit digital output Integrated digital filtering SPI and I²C communication interfaces Low power consumption (~200 µA typical) Wide supply voltage range (2.25 V to 3.6 V) Integrated temperature sensor Hermetically sealed package Applications Structural health monitoring Vibration measurement and analysis Tilt and inclination sensing Industrial condition monitoring Navigation and inertial systems Seismic detection Robotics and stabilization platforms Functional Description The ADXL355BEZ includes an integrated sensing and processing architecture composed of: Three-axis MEMS sensing element Analog front-end signal conditioning High-resolution ADC Digital filtering and decimation stages Temperature sensing element Digital communication interface (SPI/I²C) Configuration and control registers Electrical Characteristics (Typical) Supply voltage: 2.25 V to 3.6 V Supply current: ~200 µA Output data rate: up to 4 kHz Noise density: ~25 µg/√Hz Resolution: 20-bit Interface: SPI / I²C Mechanical and Package Information Package type: LGA (Land Grid Array) Approximate dimensions: 3 mm × 5 mm × 1 mm Hermetically sealed for improved environmental robustness Interface and Communication Supports SPI (4-wire) and I²C protocols Outputs 20-bit acceleration data per axis Data format: two’s complement Measurement Ranges ±2 g ±4 g ±8 g Environmental Specifications Operating temperature range: -40°C to +125°C Storage temperature range: -55°C to +150°C Power Management Supports measurement and standby modes Designed for low-power operation in continuous sensing applications Compliance and Reliability Industrial-grade device Designed for long-term stability RoHS compliant #commonpartslibrary #sensor #accelerometer

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-C3-WROOM-02-N4 is a compact, general-purpose Wi-Fi and Bluetooth Low Energy (BLE) module developed by Espressif Systems. It is built around the ESP32-C3 SoC and integrates RF components, crystal oscillator, flash memory, and PCB antenna in a single module. It is designed for a wide range of applications such as IoT devices, smart home systems, industrial automation, and consumer electronics, offering a balance of performance, low power consumption, and cost efficiency. Key Features MCU & Memory 32-bit RISC-V single-core processor up to 160 MHz 384 KB ROM 400 KB SRAM + 8 KB RTC SRAM Integrated 4 MB SPI flash (N4 variant) Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Supports Station, SoftAP, and Station + SoftAP modes Bluetooth 5 (BLE) with mesh support Data rates up to 150 Mbps (Wi-Fi) Peripherals & Interfaces Up to 15 GPIOs Interfaces: SPI, UART, I2C, I2S LED PWM ADC (SAR) Timers & watchdog USB Serial/JTAG support TWAI® (CAN 2.0 compatible) #commonpartslibrary #transceiver #module #wireless #rf

RP2040 chip for Raspberry Pi Pico - ARM® Cortex®-M0+ MCU 32-Bit The RP2040 is a high-performance, low-cost microcontroller built around two ARM Cortex-M0+ cores. It is optimized for flexibility, ease of use, and deterministic real-time performance. Unlike many microcontrollers, it includes a unique programmable I/O subsystem (PIO), allowing custom hardware interfaces without extra components. Key Features Processing Dual-core ARM Cortex-M0+ processors Up to 133 MHz clock speed Efficient integer performance with low power consumption Memory 264 KB on-chip SRAM External QSPI flash support (typically 2 MB–16 MB depending on board) Programmable I/O (PIO) 2 PIO blocks, each with 4 state machines Enables custom protocols (e.g., SPI, I2C, UART, WS2812, VGA, etc.) Offloads timing-critical tasks from CPU 🔗 Connectivity Interfaces 2× UART 2× SPI 2× I2C USB 1.1 controller (device or host support) 16× PWM channels Analog Features 12-bit ADC (up to 5 channels, including internal temperature sensor) Power & Voltage Operating voltage: 1.8V – 3.3V Low-power modes available Package Options QFN-56 (7×7 mm) Development Ecosystem Supports C/C++ SDK MicroPython and CircuitPython support Strong community and documentation Typical Applications Embedded systems and IoT devices Robotics and automation DIY electronics and prototyping USB devices (HID, MIDI, etc.) Custom communication interfaces using PIO #CommonPartsLibrary #IntegratedCircuit #Microcontroller

MAX98357A Series 5.5V 3.2W PCM Input Class D Audio Power Amplifier - TQFN-16 The MAX98357A/MAX98357B is an easy-to-use, low-cost, digital pulse-code modulation (PCM) input Class D amplifier that provides industry-leading Class AB audio performance with Class D efficiency. The digital audio interface automatically recognizes up to 35 different PCM and TDM clocking schemes which eliminates the need for I2C programming. Operation is further simplified by eliminating the need for an external MCLK signal that is typically used for PCM communication. Simply supply power, LRCLK, BCLK, and digital audio to generate audio! Furthermore, a novel pinout allows customers to use the cost-effective WLP package with no need for expensive vias (refer to Application Note 6643: Optimize Cost, Size, and Performance with MAX98357 WLP for more information). The digital audio interface is highly flexible with the MAX98357A supporting I2S data and the MAX98357B supporting left-justified data. Both ICs support 8 channel time division multiplexed (TDM) data. The digital audio interface accepts specified sample rates between 8kHz and 96kHz for all supported data formats. The ICs can be configured to produce a left channel, right channel, or (left/2 + right/2) output from the stereo input data. The ICs operate using 16/24/32-bit data for I2S and left-justified modes as well as 16-bit or 32-bit data using TDM mode. The ICs eliminate the need for the external MCLK signal that is typically used for PCM communication. This reduces EMI and possible board coupling issues in addition to reducing the size and pin count of the ICs. The ICs also feature a very high wideband jitter tolerance (12ns typ) on BCLK and LRCLK to provide robust operation. Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices and reduces the component count of the solution. The ICs are available in 9-pin WLP (1.345mm x 1.435mm x 0.64mm) and 16-pin TQFN (3mm x 3mm x 0.75mm) packages and are specified over the -40°C to +85°C temperature range. ● Single-Supply Operation (2.5V to 5.5V) ● 3.2W Output Power into 4Ω at 5V ● 2.4mA Quiescent Current ● 92% Efficiency (RL = 8Ω, POUT = 1W) ● 22.8μVRMS Output Noise (AV = 15dB) ● Low 0.013% THD+N at 1kHz ● No MCLK Required ● Sample Rates of 8kHz to 96kHz ● Supports Left, Right, or (Left/2 + Right/2) Output ● Sophisticated Edge Rate Control Enables Filterless Class D Outputs ● 77dB PSRR at 1kHz ● Low RF Susceptibility Rejects TDMA Noise from GSM Radios ● Extensive Click-and-Pop Reduction Circuitry ● Robust Short-Circuit and Thermal Protection ● Available in Space-Saving Packages: 1.345mm x 1.435mm WLP (0.4mm Pitch) and 3mm x 3mm TQFN ● Solution Size with Single Bypass Capacitor is 4.32mm2 Applications ● Single Li-ion Cell/5V Devices ● Smart Speakers ● Notebook Computers ● IoT Devices ● Gaming Devices (Audio and Haptics) ● Smartphones ● Tablets ● Cameras #commonpartslibrary #integratedcircuit #linearamplifier #mono

Optical Sensor Ambient 560nm I²C 6-SMD Module #commonpartslibrary #sensor #Opticalsensor

USB Hub Controller USB 3.1 I2C, SPI Interface 100-VQFN (12x12) #CommonPartsLibrary #IntegratedCircuit #Interface