A simple common decoupling capacitor, value 0.1uF or 100nF, sourced from LCSC. 50V max, X7R, +/- 10% tol. (LCSC Part #: C1591)

1 µF ±10% 16V Ceramic Capacitor X7R 0603 (1608 Metric) The CGA3E1X7R1C105K080AC is a multilayer ceramic chip capacitor designed for high-reliability electronic applications requiring stable capacitance characteristics, compact form factor, and dependable performance under varying operating conditions. The component utilizes advanced ceramic dielectric technology to provide consistent electrical behavior with low losses and high insulation resistance suitable for signal filtering, decoupling, bypassing, and general-purpose circuit stabilization. The capacitor is constructed with a multilayer monolithic structure that enables high capacitance density while maintaining excellent mechanical integrity and thermal stability. Its surface-mount configuration supports automated assembly processes and high-density printed circuit board layouts commonly used in industrial, automotive, telecommunications, and consumer electronic systems. The dielectric system is engineered to maintain capacitance stability across a broad temperature range and varying electrical conditions while minimizing impedance and noise within electronic circuits. The component exhibits reliable frequency response characteristics and supports efficient suppression of voltage fluctuations and electromagnetic interference in high-speed and high-frequency applications. External terminations are designed to provide strong solderability, mechanical durability, and resistance to thermal cycling stresses during assembly and operation. The component is compatible with standard reflow soldering processes and is intended for long-term operation in environments subject to temperature variation, vibration, and electrical loading. The CGA3E1X7R1C105K080AC is suitable for use in power management circuits, communication equipment, embedded control systems, automotive electronics, and other applications requiring compact passive components with stable electrical performance and high reliability. #CommonPartsLibrary #CeramicCapacitors

Standard (General Purpose) Amplifier 4 Circuit Push-Pull, Rail-to-Rail 14-TSSOP The OPA4391PWR is a precision quad operational amplifier designed for low-noise, high-speed signal conditioning in a wide range of analog applications. It integrates four independent amplifier channels within a single compact package, making it suitable for space-constrained designs that require consistent performance across multiple signal paths. The device offers a combination of low offset voltage, wide bandwidth, and fast slew rate, enabling accurate amplification of both small and rapidly changing signals. It is commonly used in instrumentation, data acquisition systems, active filtering, and audio signal processing where stability and signal integrity are critical. Functional Overview The device consists of four matched operational amplifiers that share common power supply connections while maintaining independent signal paths. Each amplifier is capable of operating in standard configurations such as inverting, non-inverting, differential, and buffer modes. The architecture supports rail-to-rail output swing, allowing efficient use of the available supply voltage. Internal design optimization ensures low distortion and stable operation across a broad range of load conditions. Electrical Characteristics The OPA4391PWR is optimized for low input offset voltage and low input bias current, contributing to high accuracy in precision applications. It features wide gain bandwidth and a high slew rate, supporting fast transient response and high-frequency operation. The amplifier maintains low noise performance, making it suitable for sensitive analog front-end designs. Power consumption is balanced to provide efficient operation without compromising dynamic performance. Operating Conditions The device operates over a wide supply voltage range, supporting both single-supply and dual-supply configurations. It is designed to function reliably across an extended temperature range, ensuring consistent performance in varying environmental conditions. Proper decoupling and layout practices are recommended to maintain stability and minimize noise coupling. Package and Mechanical Characteristics The OPA4391PWR is provided in a compact surface-mount package suitable for automated assembly processes. The package is designed to facilitate efficient thermal dissipation and reliable electrical connections. Pin configuration allows straightforward integration into standard PCB layouts for quad operational amplifiers. Applications This device is intended for use in precision analog circuits including signal conditioning, sensor interfaces, active filters, audio amplification, and data acquisition systems. Its combination of low noise, high speed, and multi-channel integration makes it well-suited for both industrial and consumer electronics applications. Design Considerations Careful PCB layout is recommended to optimize performance, including short signal paths, proper grounding, and adequate power supply decoupling. Input and output traces should be routed to minimize interference and crosstalk between channels. Thermal management should be considered in high-performance or high-density designs to ensure long-term reliability. #commonpartslibrary #integratedcircuit #linearamplifier #opamp

2 Channel AFE 16 Bit 24-UQFN (4x4) The AFE881H1RRUR is a highly integrated analog front-end (AFE) designed for multi-channel data acquisition systems. It combines precision analog signal conditioning with high-speed analog-to-digital conversion, making it suitable for applications such as medical instrumentation, industrial measurement, and test and measurement equipment. The device integrates low-noise amplifiers, programmable gain stages, anti-aliasing filters, and high-resolution ADCs into a compact package, reducing system complexity and board space. Key Features Multi-channel analog front-end integration High-resolution analog-to-digital conversion Low-noise input stage for precision measurements Programmable gain amplifier (PGA) Integrated anti-aliasing filters High sampling rate capability Serial digital interface (SPI-compatible) Low power consumption for portable systems Compact surface-mount package Electrical Characteristics (Typical – refer to datasheet for exact values) Supply Voltage: ~1.8 V to 3.3 V (analog/digital domains) Input Voltage Range: Dependent on configuration Resolution: Up to 16-bit or higher (device dependent) Sampling Rate: Up to several MSPS (depending on mode) Power Consumption: Optimized for performance/power balance Functional Blocks Low-noise input buffer Programmable gain amplifier (PGA) Anti-aliasing filter High-speed ADC core Digital control interface (SPI) Clock management circuitry Package Information Package Type: QFN / VQFN (exact variant per TI RRU package code) Mounting Type: Surface Mount Pin Count: Typically 40+ pins (refer to datasheet for exact count) Applications Medical imaging and instrumentation Industrial data acquisition systems Oscilloscopes and test equipment Communication systems Precision sensor interfaces Advantages High integration reduces external components Improved signal integrity due to low-noise design Flexible configuration via programmable gain Compact footprint for dense PCB layouts Notes Exact electrical parameters, pin configuration, and performance metrics must be verified in the official Texas Instruments datasheet. Proper PCB layout (grounding, shielding, and decoupling) is critical for optimal performance. #commonpartslibrary #integratedcircuit

Important Note: You must connect your own SPI/ICSP programming header if you want to burn the Arduino bootloader to the MCU. SMD Manufacturing: Need a hotplate and solderpaste Good to haves: - Oscillator Decoupling Caps Expose UART via connector Programming Button Onboard LED Reset Button You don't have to populate everything! Only these are mandatory: Reset Button Find the reference schematic here: https://www.arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf

802.15.4, Bluetooth, WiFi 802.11a/b/g/n/ac/ax, Bluetooth v5.3, Zigbee® Transceiver Module 2.4GHz, 5GHz Antenna Not Included, U.FL/MHF, PCB Trace Surface Mount The LBES5PL2EL-923 is a compact, low-power Bluetooth® Low Energy (BLE) module developed by Murata. It integrates a Nordic Semiconductor SoC (nRF52 series) with an onboard antenna, providing a complete RF solution for wireless connectivity in embedded systems. The module is designed for IoT, wearable, and low-power wireless applications, offering reliable communication, small footprint, and minimal external component requirements. Key Features Integrated Bluetooth® Low Energy (BLE) 5.x compliant module Based on Nordic Semiconductor nRF52 series SoC Built-in chip antenna (no external antenna required) Ultra-low power consumption suitable for battery-powered devices Integrated RF matching and shielding Supports multiple BLE roles (Central, Peripheral, Broadcaster, Observer) Compact surface-mount package Pre-certified RF module (reduces certification effort) Electrical Characteristics Supply Voltage Operating Voltage: 1.7 V to 3.6 V Current Consumption TX Mode: ~5–10 mA (depending on output power) RX Mode: ~5 mA Sleep Mode: < 2 µA RF Characteristics Frequency Band: 2.4 GHz ISM (2400–2483.5 MHz) Output Power: up to +4 dBm Sensitivity: approx. -96 dBm Interfaces UART SPI I²C (TWI) GPIO (multiplexed) ADC inputs PWM Mechanical Specifications Package Type: Surface Mount Module (SMD) Dimensions: ~10 mm × 7 mm × 1.4 mm (approx.) Integrated antenna and shielding Environmental Ratings Operating Temperature: -40°C to +85°C Storage Temperature: -40°C to +125°C Compliance & Certifications Bluetooth SIG qualified FCC / IC / CE (module-level certification, varies by variant) RoHS compliant Applications IoT devices Wearables Smart home products Wireless sensors Industrial monitoring systems Pin Configuration (Summary) Power: VDD, GND Communication: UART, SPI, I²C GPIOs: Configurable digital I/O RF: Integrated antenna (no RF pin required) Design Considerations Follow recommended PCB layout for antenna clearance Avoid copper under antenna region Provide stable power supply with proper decoupling capacitors Ensure proper grounding for RF performance #commonpartslibrary #integratedcircuit #transceiver #wireless #rf

This project is a Lithium-ion battery charger circuit utilizing the MCP73831 integrated circuit. It includes input and output connectors, a charging current programming resistor, decoupling capacitors, and a charge status indicator LED. The design can deliver up to 500mA charge current. #project #Template #charger #referenceDesign #batterycharger #template #bms #microchip

This project is a battery charging circuit utilizing a MAX1551 chip. It features a USB and DC power input, with LED status indicators. The design is outfitted with necessary decoupling capacitors and resistors to ensure smooth operation. #project #Template #charger #reusable #module #batterycharger #MAX1551 #template #bms #analog

This project is a reference design for the BHI160B sensor featuring an I2C interface with QWIIC and pin headers. The design includes decoupling capacitors and pull-up resistors for signal integrity. It's powered by a 3.3V supply. #referenceDesign #Module #sensor #accelerometer #BHI160B #reusable #module #imu #stm #sublayout

This project is a Advanced Dual Cell Lithium-Ion/Lithium-Polymer Charge Management Controllers utilizing the MCP73844 integrated circuit. It includes input and output connectors, a charging current programming resistor, decoupling capacitors, and a charge status indicator LED. #project #Template #charger #MCP73844 #2cell #reusable #module #batterycharger #template #bms #microchip