This module is a minimalist Arduino Watch design. Consisting of a Microchip ATTINY85-20SU microcontroller, an OLED display for visual output, two user buttons for interface, and a Li-ion Battery for power. The schematic also includes graphic user interface with ISP for programming and minimal passive components for functionality. #project #Template #projectTemplate #reusable #module #simple-embedded #microchip #arduino #sublayout

ARM® Cortex®-M0+ STM32G0 Microcontroller IC 32-Bit Single-Core 64MHz 32KB (32K x 8) FLASH 8-SOIC The STM32G031J6M6 is a compact, low-power 32-bit microcontroller from STMicroelectronics, based on the Arm® Cortex®-M0+ core running at up to 64 MHz. It belongs to the STM32G0 series, designed for cost-sensitive and energy-efficient embedded applications. This MCU integrates essential peripherals, memory, and system functions into a small package (8-pin SOIC), making it suitable for consumer electronics, industrial control, appliances, and IoT devices where space and power efficiency are critical. Key Features Core & Performance 32-bit Arm Cortex-M0+ CPU Up to 64 MHz clock frequency Memory Protection Unit (MPU) for improved reliability and security 💾 Memory 32 KB Flash memory (program storage) 8 KB SRAM Flash protection (read/write protection, secure area) Peripherals & Interfaces Communication: I2C (2x) SPI (2x) / I2S USART (2x) + Low-power UART 12-bit ADC (up to ~2.5 MSps, multiple channels) DMA controller (5 channels) Timers: Advanced PWM timer (motor control capable) General-purpose timers (16-bit & 32-bit) Low-power timers Watchdog timers RTC (Real-Time Clock) with VBAT backup Power & Efficiency Operating voltage: 1.7 V to 3.6 V Multiple low-power modes: Sleep, Stop, Standby, Shutdown Optimized for low energy consumption (battery-powered designs) I/O & Package Up to 44 GPIOs (depending on package) 6 GPIOs available in the 8-pin (J6M6) package 5V-tolerant I/O pins (select pins) Compact SOIC-8 package#commonpartslibrary #integratedcircuit #microcontroller

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-S3-WROOM-1-N16R8 is a high-performance Wi-Fi + Bluetooth Low Energy (BLE) module developed by Espressif Systems. It is built around the ESP32-S3 SoC, featuring a dual-core Xtensa LX7 32-bit processor running up to 240 MHz. This module integrates 16 MB Flash memory and 8 MB PSRAM, making it suitable for memory-intensive applications such as AI, image processing, and advanced IoT systems. It also includes an onboard PCB trace antenna, RF circuitry, crystal oscillator, and power management components—allowing designers to quickly integrate wireless connectivity into compact embedded designs. Key Features Processing & Memory Dual-core Xtensa LX7 CPU, up to 240 MHz 384 KB ROM, 512 KB SRAM + 16 KB RTC SRAM 16 MB Flash (Quad SPI) 8 MB PSRAM (Octal/Quad SPI) Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Bluetooth 5 (LE) + Mesh support Integrated PCB antenna Peripherals & Interfaces Up to 36 GPIOs Interfaces: UART, SPI, I2C, I2S, PWM, ADC, USB OTG Built-in USB Serial/JTAG support Supports touch sensors, timers, watchdogs, CAN (TWAI) Electrical Characteristics Supply voltage: 3.0 V – 3.6 V TX power: up to ~20.5 dBm RX sensitivity: ~-103.5 dBm Operating temp: −40 °C to +65 °C (typical) Advanced Capabilities Optimized for AI acceleration (vector instructions) Suitable for voice recognition, image processing, and edge AI Low-power modes for battery-operated devices| Typical Applications IoT devices and sensor hubs Smart home & home automation AIoT (voice/image recognition) Industrial automation & monitoring Wearables and health devices USB-connected embedded systems #Module #RF-Transceiver #ESP32-S3

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

ESP32-S3-MINI-1-N8 is a compact, low-power Wi-Fi and Bluetooth module from Espressif Systems based on the ESP32-S3 SoC. It integrates a dual-core Xtensa LX7 processor, 8 MB flash memory, crystal oscillator, RF matching circuitry, and a PCB antenna in a small SMD package, making it ideal for IoT devices, smart home products, industrial automation, HMI applications, AIoT edge devices, and USB-connected embedded systems. Key Features Dual-core 32-bit Xtensa LX7 CPU Up to 240 MHz operating frequency Includes single-precision floating-point unit (FPU) for enhanced processing performance. Integrated Memory 8 MB Quad SPI Flash (N8 variant) 512 KB SRAM 384 KB ROM 16 KB RTC SRAM. Wireless Connectivity 2.4 GHz Wi-Fi 4 (802.11 b/g/n) Data rates up to 150 Mbps Bluetooth 5 LE with Bluetooth Mesh support Simultaneous Wi-Fi and Bluetooth operation through an integrated coexistence mechanism. Rich Peripheral Set Up to 39 GPIOs USB 2.0 OTG USB Serial/JTAG SPI, I²C, I²S, UART PWM, MCPWM SDIO Host ADC Touch sensing Temperature sensor TWAI® (CAN 2.0 compatible) Timers and watchdogs. Integrated Components On-board 40 MHz crystal oscillator PCB antenna RF matching network Compact certified module design. Operating Conditions Supply voltage: 3.0 V to 3.6 V Operating temperature: −40°C to +85°C. Compliance RoHS and REACH compliant RF-certified module for simplified product development. #RF_transceiver #Module #Esp32

Windowed Watchdog Timer #ultralibrarian

Microcontroller – 32-bit Arm® Cortex®-M0+ microcontroller operating at up to 64 MHz, featuring 512 KB Flash memory, 144 KB SRAM, and 30 programmable I/O pins. Operates from a 1.7 V to 3.6 V supply and integrates a 13-channel 12-bit ADC, 2-channel 12-bit DAC, three analog comparators, and communication interfaces including CAN FD, USB 2.0 Full-Speed, USB Type-C® Power Delivery, I²C, SPI, I²S, UART/USART, HDMI-CEC, IrDA, and LIN. Includes DMA, PWM timers, brown-out detect/reset, power-on reset (POR), and watchdog timer (WDT) peripherals. Housed in a 32-pin UFQFPN (5 × 5 mm) package. #STMicroelectronics #STM32 #STM32G0B1KEU6 #Microcontroller #ARMCortexM0Plus #32BitMCU #64MHz #512KBFlash #144KBSRAM #ADC #DAC #CANFD #USB2 #USBTypeC #I2C #SPI #I2S #UART #UFQFPN32 #EmbeddedSystems

Sub-GHz Wireless Microcontroller – Ultra-low-power Sub-GHz wireless microcontroller integrating a 64 MHz Arm® Cortex®-M0+ core with an RF transceiver for LPWAN, smart metering, industrial IoT, building automation, asset tracking, and wireless sensor networks. Features 128 KB Flash, 32 KB SRAM, and supports Sub-GHz operation from 413–479 MHz and 826–958 MHz (including regional ISM bands), with up to +20 dBm transmit power, −132 dBm receiver sensitivity, and data rates up to 600 kbps. Supports Sigfox, KNX RF, IEEE 802.15.4g, Mioty, and proprietary wireless protocols using 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, ASK, OOK, DBPSK, and DSSS modulation. Operates from a 1.7 V to 3.6 V supply and includes 17 GPIOs, 12-bit ADC, timers, DMA, SPI, I²C, UART/USART, I²S, IrDA, PWM, watchdog, AES hardware accelerator, true random number generator (TRNG), and low-power wake-up receiver. Specified for operation over a −40°C to +105°C temperature range and housed in a 32-pin VFQFPN (5 × 5 mm) package. #STMicroelectronics #STM32WL33KBV7 #STM32WL33 #SubGHzMCU #WirelessMCU #CortexM0Plus #LPWAN #Sigfox #KNXRF #IEEE802154g #Mioty #IoT #EmbeddedSystems

Power Management IC (PMIC) integrating battery charging, power regulation, fuel gauging, and system management for single-cell Li-ion, Li-poly, and LiFePO₄ batteries. It features a 4–100 mA linear battery charger, two 200 mA buck regulators, two configurable 50 mA LDOs or 100 mA load switches, USB-C compatible input (4.0–5.5 V) with 22 V overvoltage protection, and an I²C-compatible TWI interface with watchdog, hard reset, power-loss warning, GPIOs, and LED drivers. #PMIC #PowerManagementIC #BatteryCharger #FuelGauge #BuckRegulator #LDO #USBTypeC #I2C #TWI #NordicSemiconductor #LiIon #LiPo #LiFePO4

ARM® Cortex®-M7 S32K3 Microcontroller IC 32-Bit 160MHz 4MB (4M x 8) FLASH 172-QFP (16x16) S32K344EHT1VPBST is an automotive-grade 32-bit microcontroller from NXP Semiconductors based on the Arm Cortex-M7 core architecture. The device is designed for high-performance real-time automotive body, chassis, powertrain, and domain control applications requiring functional safety, security, and advanced communication interfaces. It integrates high-speed processing capability, extensive peripheral integration, hardware security acceleration, and deterministic control functions suitable for safety-critical embedded systems. The microcontroller operates with an Arm Cortex-M7 CPU core running at high frequency with floating-point support and DSP extensions for computationally intensive applications. Integrated flash memory and SRAM provide embedded program and data storage optimized for automotive embedded control systems. The device supports hardware-assisted security features including secure boot, cryptographic acceleration, and tamper protection for secure automotive network communication and firmware integrity. The S32K344EHT1VPBST includes multiple communication peripherals supporting CAN FD, FlexCAN, LIN, SPI, UART, I2C, and Ethernet interfaces for distributed automotive networking and gateway applications. Advanced analog integration includes ADC modules, timers, PWM generators, watchdogs, and motor-control-oriented peripherals enabling precision sensing and control functionality. The device supports functional safety development aligned with ISO 26262 requirements and includes error correction, memory protection, fault monitoring, and safety management features. Power management functionality supports low-power operating modes for energy-efficient automotive electronic control units. The microcontroller is housed in a thermally enhanced LQFP package suitable for automotive operating environments with extended temperature capability and AEC-Q100 qualification for automotive reliability standards. #commonpartslibrary #integratedcircuit #microcontroller #arm #m7

Supervisor Open Drain or Open Collector 1 Channel SOT-23-5 The TPS382x family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains less than the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to make sure proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage (VIT− + VHYS). When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x family also offers watchdog time out options of 200ms (TPS3820) and 1.6s (TPS3823, TPS3824, and TPS3828). • Power-on reset generator with a fixed delay time of 200ms (TPS3823, TPS3824, TPS3825, and TPS3828) or 25ms (TPS3820) • Manual reset input (TPS3820, TPS3823, TPS3825, and TPS3828) • Reset output available in active-low (TPS3820, TPS3823, TPS3824, and TPS3825), active-high (TPS3824 and TPS3825), and open drain (TPS3828) • Supply voltage supervision range: 2.5V, 3V, 3.3V, 5V • Watchdog timer (TPS3820, TPS3823, TPS3824, and TPS3828) • Supply current of 15μA (typical) • 5-pin SOT-23 package • Temperature range: −40°C to 85°C (−40°C to 125°C for TPS3823A-33) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Supervisor

Charger IC Multi-Chemistry 36-VQFN (5x6) The BQ25750RRVR is a highly integrated switch-mode battery charge controller and power-path management device designed for single-cell to multi-cell lithium-ion and lithium-polymer battery-powered systems. The device supports bidirectional power conversion, enabling both battery charging and system power delivery through USB Type-C and other DC power sources. It integrates high-efficiency buck-boost charging architecture to maintain optimal charging performance across a wide input voltage range. The device is intended for portable electronics, industrial handheld equipment, USB Power Delivery applications, embedded systems, and battery-powered computing platforms requiring advanced power management and flexible charging capability. Integrated power-path management allows simultaneous system operation and battery charging while maintaining battery protection and system stability. The BQ25750RRVR supports programmable charging parameters through an I2C interface, including charge voltage, charge current, input current limit, and system power regulation. The device includes comprehensive protection functions such as overvoltage protection, overcurrent protection, thermal regulation, battery temperature monitoring, and fault reporting. High switching frequency operation enables reduced external component size and compact PCB implementation. Features Integrated synchronous buck-boost battery charger Supports USB Power Delivery and wide DC input sources Bidirectional power conversion capability I2C programmable charging and system parameters Integrated power-path management High-efficiency charging operation Supports multi-cell lithium-ion and lithium-polymer batteries Programmable input current and charge current limits Dynamic power management and system voltage regulation Integrated ADC monitoring for voltage, current, and temperature Battery supplement mode during adapter removal OTG boost mode support Thermal regulation and thermal shutdown protection Input overvoltage and overcurrent protection Battery overvoltage protection Safety timer and watchdog timer support NTC thermistor interface for battery temperature monitoring Interrupt and fault status reporting Compact WQFN package suitable for space-constrained designs Electrical Characteristics Wide input operating voltage range Programmable battery charge voltage High charge current capability Integrated low RDS(on) MOSFET drivers High switching frequency operation High conversion efficiency across operating range Low standby and shutdown current consumption Accurate input and charge current regulation Integrated analog-to-digital converter telemetry Interface and Control I2C serial communication interface Programmable charging profiles Configurable protection thresholds Status and interrupt reporting ADC telemetry reporting Enable and control pins for system integration Protection Features Input overvoltage protection Input overcurrent protection Battery overvoltage protection Thermal shutdown protection Thermal regulation control Short-circuit protection Watchdog timer protection Safety charging timer Battery temperature qualification support Package Information Package Type: WQFN Package Suffix: RRV Compact thermally enhanced package Surface-mount device Suitable for automated PCB assembly processes Applications USB Type-C charging systems Portable computers and tablets Industrial handheld devices Power banks and battery packs Embedded battery-powered systems Portable instrumentation Consumer electronics Smart battery charging platforms #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Accelerometer, Gyroscope, 6 Axis Sensor I2C, I3C, SPI Output The BMI323 is a low-power, high-performance inertial measurement unit developed by Bosch Sensortec. It integrates a three-axis accelerometer and a three-axis gyroscope within a compact surface-mount package intended for motion sensing applications requiring precise movement detection, orientation tracking, vibration monitoring, and activity recognition. The device is optimized for wearable electronics, industrial sensing, robotics, navigation systems, IoT devices, and consumer electronics where low power consumption and high motion accuracy are critical. The sensor includes advanced digital signal processing, configurable motion-detection features, programmable interrupts, and integrated FIFO buffering to reduce host processor workload and improve system efficiency. Communication is supported through standard digital interfaces, enabling straightforward integration with microcontrollers and embedded platforms. The BMI323 is designed for robust environmental performance and supports flexible power management modes suitable for battery-operated systems. Engineering Specifications Device Type Six-axis inertial measurement unit consisting of: Three-axis accelerometer Three-axis gyroscope Manufacturer Bosch Sensortec Package Compact LGA surface-mount package suitable for automated assembly processes. Accelerometer Characteristics Supports multiple selectable full-scale measurement ranges for motion and acceleration sensing applications. Provides high-resolution digital output with configurable filtering and sampling parameters for low-noise operation and accurate motion analysis. Gyroscope Characteristics Integrated three-axis angular rate sensor with programmable measurement ranges and digital filtering capabilities. Designed for rotational movement tracking, stabilization, gesture recognition, and inertial navigation applications. Digital Interfaces Supports: I²C serial communication SPI serial communication I3C compatible operation Power Features Designed for ultra-low power operation with multiple configurable power modes to optimize energy consumption for portable and battery-powered devices. Embedded Features Includes integrated: FIFO data buffering Motion detection engine Activity and inactivity detection Tap and gesture detection Orientation and tilt sensing Interrupt generation Self-test functionality Output Data Handling Provides configurable output data rates, oversampling settings, and digital filtering options for balancing performance, bandwidth, and power consumption. Temperature Performance Integrated temperature sensing and compensation support for improved measurement stability across varying environmental conditions. Interrupt System Programmable interrupt outputs support event-driven system architectures and allow efficient host wake-up functionality. Operating Environment Designed for operation across industrial and consumer temperature ranges with stable sensor performance under dynamic motion conditions. Applications Suitable for: Wearable devices Smart watches Fitness trackers Industrial motion monitoring Robotics Drones Navigation systems Gaming controllers AR/VR systems IoT motion sensing Human-machine interfaces #commonpartslibrary #integratedcircuit #accelerometer #sensor

Monitors & Reset Circuits TPS3808G33DRVT WSON-6_L2.0-W2.0-P0.65-TL-EP LCSC Part Number: C702176 JLCPCB Part Class: undefined Manufactured by TI(德州仪器) Texas Instruments TPS3808 low-quiescent-current voltage supervisor and reset generator, supply voltage monitoring from 0.4V to 5V, 0.5% threshold accuracy, adjustable reset delay from 1.25ms to 10s using external capacitor, open-drain RESET output, manual reset (MR) input, ultra-low 2.4µA typical quiescent current, suitable for microcontrollers, DSPs, FPGAs, ASICs, battery-powered and portable devices, operating temperature range -40°C to +125°C, available in SOT-23-6 and WSON-6 packages. Search Keywords: TPS3808, TPS3808G, Texas Instruments TPS3808, TI TPS3808, voltage supervisor, reset supervisor, reset generator, watchdog reset, power-on reset, POR supervisor, brownout detector, voltage monitor IC, microcontroller supervisor, open drain reset, adjustable reset delay, manual reset supervisor, low power supervisor, battery powered reset IC, TPS3808 datasheet, TPS3808 SOT-23-6, TPS3808 WSON-6 Hashtags: #TPS3808 #TexasInstrumentsTPS3808 #TIVoltageSupervisor #VoltageSupervisor #ResetSupervisor #ResetGenerator #PowerOnReset #BrownoutDetector #VoltageMonitorIC #MicrocontrollerSupervisor #OpenDrainReset #ManualReset #LowPowerSupervisor #BatteryPoweredDesign #SOT236 #WSON6