8-bit Microcontrollers - MCU Op Amp, 64KB Flash, 4K RAM, 512 EEPROM, 12b ADCC, 8b DAC, DMA, 16-bit PWM, PPS, UART, SPI/I2C PIC18F16Q41

LED Driver IC 1 Output Linear PWM Dimming 350mA U-DFN2020-6

LED Driver IC 4 Output Linear PWM Dimming 20mA SOT-23-6

The TPS61187, manufactured by Texas Instruments, is a high-efficiency, white-light-emitting-diode (WLED) driver specifically designed for notebook LCD backlight applications. This component can manage an input voltage range of 4.5 V to 24 V and supports a maximum output voltage of 38 V. It is distinguished by its integrated 2-A, 40-V power MOSFET and the capacity to drive up to 60 WLEDs arranged in six channels, with each channel capable of supporting a maximum current of 30 mA. The TPS61187 ensures high precision in current regulation and matching across all channels. Notably, the device offers versatile dimming capabilities through both automatic phase-shift and direct-PWM dimming methods, accommodating a wide PWM dimming frequency range from 100 Hz to 50 kHz in Direct PWM mode and 100 Hz to 22 kHz in Frequency Programmable mode. The boost output automatically adjusts to the WLED forward voltages to enhance efficiency. Additionally, the TPS61187 features programmable switching frequency between 300 kHz and 1 MHz, overvoltage protection, thermal shutdown, and built-in protection against open or short circuits on the WLED string. Available in a 20-pin WQFN package with a nominal body size of 4.00 mm x 4.00 mm, the TPS61187 offers a compact solution for driving notebook backlighting, providing engineers with a flexible and efficient option for their designs.

The RP2350, developed by Raspberry Pi Ltd, is a high-performance microcontroller designed to cater to a broad range of applications requiring efficient power management, advanced security features, and versatile IO options. This microcontroller stands out with its dual-core architecture, featuring either Cortex-M33 or Hazard3 processors operating at up to 150 MHz, ensuring robust performance for complex applications. It boasts a substantial 520 KB of on-chip SRAM distributed across 10 independent banks, enhancing parallel data processing capabilities. Additionally, the RP2350 supports up to 16 MB of external QSPI flash/PSRAM for extensive program and data storage, further expandable via an optional second chip-select. A notable feature of the RP2350 is its integrated on-chip switched-mode power supply, designed to generate core voltage efficiently, complemented by a low-quiescent-current LDO mode for reduced power consumption in sleep states. Security is a paramount feature of the RP2350, offering options for boot signing with key fingerprint in OTP, hardware mitigations against fault injection attacks, and a hardware SHA-256 accelerator for cryptographic operations. The microcontroller is also equipped with a comprehensive set of peripherals, including USB 1.1 controller and PHY, multiple UARTs, SPI, and I2C controllers, 24 PWM channels, and 12 programmable IO (PIO) state machines, providing extensive interface capabilities. The RP2350 is available in QFN-60 and QFN-80 packages, with or without flash-in-package options, catering to various design requirements and application needs.

16MHz, 8kB Flash, 512B SRAM, 512B EEPROM, SOIC-24 AVR 8bit Microcontroller LightingAVR PWM SOIC*7.5x15.4mm*P1.27mm*

The Micro is a microcontroller board based on the ATmega32U4 (datasheet), developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard. The Micro board is similar to the Arduino Leonardo in that the ATmega32U4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

The PJM2309PSC, manufactured by Pingjingsemi, is a P-Channel Enhancement Mode Power MOSFET designed for high-efficiency power management applications. Encased in a compact SOT-23-3 package, this MOSFET is halogen and antimony-free, making it an environmentally friendly choice. It features a drain-source voltage (V_DS) of -60V and can handle a continuous drain current (I_D) of up to -4A, with a maximum pulsed drain current (I_DM) of -20A. The on-resistance (R_DS(on)) is less than 200mΩ at V_GS = -10V, ensuring low power dissipation. Key applications include load switching, PWM applications, and general power management. The component is designed for robust performance with a junction temperature (T_J) rating of 150°C and a thermal resistance (R_θJA) of 89°C/W, making it suitable for high-temperature environments.

Connectivity options include 802.11 b/g/n Wi-Fi, Bluetooth® 5 (BLE), and BLE 5 Mesh support, operating at 2.4GHz for seamless wireless communication. The board is equipped with 2MB PSRAM and 384KB ROM, alongside a wide range of I/O interfaces, including 45 GPIOs, 4 x SPI, 3 x UART, 2 x I2C, 14 x touch pins, 2 x I2S, RMT, LED PWM, USB-OTG, TWAI, and 2 x 12-bit ADCs. It also features DVP for expanded functionality, making it a versatile solution for IoT and embedded applications.

The RP2350, developed by Raspberry Pi Ltd, represents a significant advancement in the field of microcontrollers, building upon the foundation laid by its predecessor, the RP2040. This component is designed to cater to a wide range of applications requiring dual-core processing capabilities, with the option to switch between Dual Cortex-M33 or Hazard3 processors operating at up to 150 MHz. It features an extensive 520 kB of on-chip SRAM distributed across 10 independent banks, alongside 8 KB of one-time-programmable (OTP) storage. External memory interfaces are well-supported, with provisions for up to 16 MB of external QSPI flash/PSRAM, and an additional 16 MB accessible via an optional second chip-select, facilitating extensive code and data storage options. Security features are robust, including options for boot signing enforced by on-chip mask ROM, with key fingerprints stored in OTP, and hardware mitigations against fault injection attacks. The RP2350 also boasts a comprehensive set of peripherals, including 2x UARTs, 2x SPI controllers, 2x I2C controllers, 24x PWM channels, and a USB 1.1 controller with PHY for host and device support, among others. Programmable IO (PIO) state machines enhance its flexibility, enabling the implementation of custom peripherals. For developers, the RP2350 offers low-power operation modes and a built-in boot ROM that supports direct boot from external flash or OTP, serial boot from USB or UART, and secure boot with code signature enforcement. The device is available in QFN-60 (7x7 mm) and QFN-80 (10x10 mm) packages, with or without built-in flash, catering to diverse application requirements. This microcontroller is a compelling choice for sophisticated projects that demand high performance, extensive memory and peripheral support, and advanced security features.

The RT8059 is a high efficiency Pulse Width Modulated (PWM) step-down DC/DC converter, capable of delivering 1A output current over a wide input voltage range from 2.8V to 5.5V.

LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Analog, PWM Dimming TSOT-23-8

OPSCO SK6812MINI RGBW is an intelligent addressable RGBW LED with an integrated control IC inside a compact 3.7 mm × 3.7 mm surface-mount package. It combines red, green, blue, and dedicated white LEDs with a built-in constant-current driver, allowing individual pixel control through a single-wire serial data interface. Each LED contains an internal data latch, PWM controller, signal reshaping circuit, and cascade output, enabling long chains of individually addressable LEDs without additional external components. Compatible with SK6812 and similar NeoPixel-style protocols, it is widely used in LED displays, decorative lighting, wearable electronics, smart home devices, gaming peripherals, indicators, keyboards, and embedded lighting applications. Features include serial data input/output (DIN/DOUT), integrated PWM dimming, high color consistency, and easy daisy-chain connectivity. Search Keywords: SK6812MINI, SK6812 MINI, RGBW LED, addressable RGBW LED, intelligent LED, NeoPixel compatible LED, smart RGB LED, serial controlled LED, individually addressable LED, DIN DOUT LED, programmable LED, LED pixel, embedded lighting LED, digital RGBW LED, SMD RGBW LED, LED strip pixel, SK6812 LED driver Hashtags: #SK6812MINI #SK6812 #RGBW #AddressableLED #SmartLED #NeoPixel #DigitalLED #LEDPixel #EmbeddedLighting #LEDDisplay #Arduino #ESP32 #IoT #WearableElectronics #PCBDesign #LightingControl #SMDLED #ElectronicComponents #LEDDriver #RGBLEDProgrammable LED; RGBW; SMD; 3535,PLCC4; 3.75.5VDC; 3800-4200K

QFP80P1600X1600X120-64N https://ww1.microchip.com/downloads/en/DeviceDoc/atmegas128_ds.pdf Rad-Tol 8-bit AVR Microcontroller, 3.3V, 8 MHz with 128 KB Flash, 4 KB EEPROM, 4 KB SRAM, 10-bit ADC, TWI, RTC, 16-bit PWM, USART, SPI and 16-bit Timer/Counter 1.2 Microchip ATMEGAS128-MD-HP N/A https://www.mouser.co.uk/ProductDetail/Microchip-Technology/ATMEGAS128-MD-HP?qs=sPbYRqrBIVk98zCv1OqHjw%3D%3D

Input Voltage Range: 4.0V (After Start-up) to 48V Adjustable Output Voltage Range: 2.0V to 24V Integrated N-Channel Buck Switch: 500 m 1A Output Current 2.2 MHz Fixed Switching Frequency Shutdown Current: 3 A Typical Quiescent Current: 18 A Typical (Not Switching) Device Selectable Switching Mode: Automatic Pulse Frequency Modulation/Pulse Width Modulation (PFM/PWM) Operation - MCP16364 PWM only Mode of Operation - MCP16365 PWM only Mode of Operation with Switching Frequency D 1 Microchip MCP16364-E/Q8B

1The ESP32-C3-DEVKIT-RUST-1 from Espressif Systems is a development platform designed for RF, RFID, and wireless applications. Built around the ESP32-C3-MINI IC, it supports Bluetooth (BLE) and IEEE 802.11 b/g/n Wi-Fi at 2.4GHz, providing reliable connectivity for wireless communication projects. Powered by a 32-bit RISC-V single-core processor running up to 160MHz, the board features 384KB ROM, 400KB SRAM, and 22 programmable GPIO pins for extensive interfacing. It also includes 3 x SPI, 2 x UART, 1 x I2C, 1 x I2S, RMT (Remote Control Peripheral), LED PWM, and a General DMA controller, making it ideal for developing Bluetooth and Wi-Fi-enabled devices and exploring the ESP32-C3-MINI's capabilities in IoT projects.

3.8V to 32V Input, 2A Low Quiescent Current Synchronous Buck Converter with Enhanced EMI Suppression The AP63200/AP63201/AP63203/AP63205 is a 2A, synchronous buck converter with a wide input voltage range of 3.8V to 32V and fully integrates a 125mΩ high-side power MOSFET and a 68mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion. The AP63200/AP63201/AP63203/AP63205 device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated compensation network. The AP63200/AP63201/AP63203/AP63205 has optimized designs for Electromagnetic Interference (EMI) reduction. The converter features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. It also has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which further erases highfrequency radiated EMI noise caused by MOSFET switching. The device is available in a low-profile, TSOT26 package • VIN 3.8V to 32V • 2A Continuous Output Current • 0.8V ±1% Reference Voltage • 22µA Ultralow Quiescent Current • Switching Frequency o 500kHz: AP63200 and AP63201 o 1.1MHz: AP63203 and AP63205 • Pulse Width Modulation (PWM) Regardless of Output Load o AP63201 • Supports Pulse Frequency Modulation (PFM) o AP63200, AP63203, and AP63205 o Up to 80% Efficiency at 1mA Light Load o Up to 88% Efficiency at 5mA Light Load • Fixed Output Voltage o 3.3V: AP63203 o 5.0V: AP63205 • Proprietary Gate Driver Design for Best EMI Reduction • Frequency Spread Spectrum (FSS) to Reduce EMI • Precision Enable Threshold to Adjust UVLO • Protection Circuitry o Overvoltage Protection o Cycle-by-Cycle Peak Current Limit o Thermal Shutdown #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Switching-regulator

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-S3-WROOM-1-N8R8 is a high-performance Wi-Fi and Bluetooth Low Energy (BLE) module from Espressif Systems, designed for advanced IoT, edge AI, smart devices, industrial automation, and embedded applications. It is based on the ESP32-S3 SoC featuring a dual-core Xtensa® LX7 processor running up to 240 MHz, integrated wireless connectivity, and enhanced AI acceleration capabilities. The N8R8 variant includes 8 MB Flash memory and 8 MB Octal SPI PSRAM, making it suitable for memory-intensive applications such as machine learning, image processing, graphical user interfaces, and data logging. Key Features Dual-core 32-bit Xtensa LX7 CPU operating up to 240 MHz Integrated 2.4 GHz Wi-Fi (802.11 b/g/n) Bluetooth 5 LE (Low Energy) support 8 MB Flash memory 8 MB Octal SPI PSRAM Vector instructions and hardware acceleration for AI/ML workloads Integrated PCB trace antenna USB OTG and USB Serial/JTAG support Rich peripheral set including: GPIO ADC UART SPI I²C I²S PWM USB Operating voltage: 3.0 V to 3.6 V Wireless data rates up to 150 Mbps RF output power up to 20.5 dBm High receiver sensitivity down to –104.5 dBm Surface-mount 41-pin module package Industrial operating temperature range up to -40°C to +85°C (module-dependent specification) #Module #RF-Transceiver #Esp32

WiFi 802.11a/b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace The ESP32-S3-WROOM-1-N8R2 is a compact, low-power Wi-Fi and Bluetooth® Low Energy (BLE) module developed by Espressif Systems. It is based on the ESP32-S3 system-on-chip (SoC), which integrates a dual-core Xtensa® LX7 processor optimized for high performance and edge AI processing. This module includes 8 MB of external SPI flash memory and 2 MB of PSRAM, enabling efficient handling of memory-intensive applications such as graphical interfaces, buffering, and embedded machine learning workloads. Designed for flexibility and scalability, the module integrates RF components, power management, and a wide range of peripherals into a surface-mount package suitable for IoT, industrial, and consumer electronics applications. Key Features Dual-core Xtensa® LX7 processor operating up to 240 MHz Integrated 2.4 GHz Wi-Fi (802.11 b/g/n) Bluetooth 5 Low Energy support Embedded 8 MB SPI flash memory Integrated 2 MB PSRAM AI acceleration through vector instruction support USB OTG (full-speed) capability Multiple low-power operating modes Built-in hardware security features Extensive peripheral interface support Functional Overview The module consists of several integrated subsystems, including a dual-core processing unit, memory subsystem (flash and PSRAM), RF subsystem for wireless communication, peripheral interface controllers, power management circuitry, and a hardware-based security engine. Electrical Characteristics Operating voltage range: 3.0 V to 3.6 V (typical 3.3 V) Operating temperature range: -40°C to +85°C RF operating frequency: 2.4 GHz Current consumption varies depending on operating mode, ranging from microamp levels in deep sleep to hundreds of milliamps during active transmission Processor and Memory The module features a dual-core Xtensa® LX7 CPU capable of running at frequencies up to 240 MHz. It includes approximately 512 KB of internal SRAM, supplemented by 8 MB of external flash memory and 2 MB of PSRAM for extended data storage and processing. Wireless Connectivity The ESP32-S3-WROOM-1-N8R2 supports Wi-Fi communication compliant with 802.11 b/g/n standards in the 2.4 GHz band. It also supports Bluetooth 5 Low Energy for short-range wireless communication. The module includes an integrated PCB antenna and supports RF output power up to approximately +20 dBm. Peripheral Interfaces The module provides a wide range of interfaces, including general-purpose input/output (GPIO) pins, SPI, I2C, UART, and I2S for audio applications. It also supports PWM for LED control, a 12-bit analog-to-digital converter (ADC), and USB OTG functionality. Pin functions are multiplexed to maximize flexibility. Power Management Power efficiency is achieved through multiple operating modes, including active mode, modem sleep, light sleep, and deep sleep. The module includes an RTC subsystem for low-power timekeeping and supports dynamic frequency scaling to optimize performance and energy consumption. Security Features The module incorporates several hardware-based security mechanisms, including secure boot, flash encryption, and digital signature verification. It also includes a hardware random number generator and cryptographic accelerators supporting AES, SHA, RSA, and ECC algorithms. Mechanical Characteristics The module is designed for surface-mount integration and measures approximately 18 mm by 25.5 mm. It includes an onboard PCB antenna and is suitable for compact embedded designs. Pin Configuration Overview GPIO pins are multiplexed to support various peripheral functions such as analog inputs, communication interfaces, and control signals. Dedicated pins are provided for power supply, module enable, and boot configuration. Typical Applications Internet of Things (IoT) devices Smart home systems Industrial automation and monitoring Edge AI and machine learning applications Wearable electronics Audio and multimedia systems USB-enabled embedded devices Compliance The module is designed to meet Wi-Fi and Bluetooth standards and is compliant with RoHS requirements. Certification such as FCC or CE may apply depending on the specific module variant and deployment. Ordering Information The ESP32-S3-WROOM-1-N8R2 variant includes 8 MB of flash memory and 2 MB of PSRAM. #commonpartslibrary #integratedcircuit #transceiver #wireless #rf

1.8V to 6.5V, 750mA, 60nA IQ step-down converter The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge. The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 μA and below. 16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components. The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems. The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2 , or 1S Li-Ion/LiSOCl2 • 60-nA operating quiescent current • 100% duty-cycle mode with 120-nA IQ • Input voltage range VIN from 1.8 V to 6.5 V • Output current up to 750 mA • RF friendly DCS-Control™ • 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT) • 16 selectable output voltages via VSET pin • Auto transition PFM/PWM or forced-PWM mode • Selectable forced PWM and STOP modes • Output discharge function • 25-nA shutdown current • SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages #CommonPartsLibrary #IntegratedCircuit #PowerManagement

The ESP32-S3-WROOM-1-N16R8 is a high-performance Wi-Fi and Bluetooth Low Energy (BLE) module from Espressif Systems, built around the ESP32-S3 SoC. It integrates a dual-core Xtensa® LX7 processor running at up to 240 MHz, along with 16 MB Quad SPI Flash and 8 MB Octal SPI PSRAM, making it suitable for memory-intensive embedded, IoT, AIoT, multimedia, and edge AI applications. The module includes an onboard PCB antenna, RF matching circuitry, crystal oscillator, and flash/PSRAM, simplifying hardware design and reducing development time. Key Features Dual-core Xtensa LX7 CPU operating up to 240 MHz 16 MB onboard Flash memory 8 MB onboard Octal PSRAM for large buffers, graphics, and AI workloads 2.4 GHz Wi-Fi (IEEE 802.11 b/g/n) Bluetooth 5.0 Low Energy (BLE) Built-in support for AI acceleration and vector instructions for machine learning and signal processing applications Rich peripheral set including: GPIO UART SPI I²C I²S USB 2.0 OTG PWM ADC Touch sensing SD/MMC interface CAN (TWAI) Integrated USB Serial/JTAG debugging capability Supply voltage range: 3.0 V to 3.6 V Operating temperature: −40°C to +65°C Surface-mount module with integrated PCB antenna Supports secure boot, flash encryption, and hardware cryptographic acceleration for secure IoT devices. Typical Applications Smart home and IoT devices Edge AI and machine learning Voice assistants and speech recognition Industrial automation Human-machine interfaces (HMI) Wireless sensors and gateways Smart displays and touch panels Audio streaming and multimedia devices Robotics and connected products #RF-Transceiver #Module #ESP32

Dual-channel H-bridge motor driver The DRV8833PWR is a dual H-bridge motor driver IC from Texas Instruments designed for driving small DC motors, stepper motors, solenoids, and other inductive loads in low-voltage battery-powered systems. It integrates two full H-bridge outputs that allow independent or combined control of two motors or one bipolar stepper motor. It is commonly used in robotics, toys, printers, and embedded motion-control applications due to its compact size and built-in protection features. Key Features Dual H-Bridge Motor Driver Drives 2 DC motors independently or 1 bipolar stepper motor Wide Supply Voltage Range Operates from 2.7 V to 10.8 V motor supply (VM) Output Current Capability Up to 2 A peak per H-bridge (package-dependent RMS limits apply) Supports parallel operation for higher current drive Low On-Resistance MOSFET Output Stage Reduces power loss and improves efficiency in battery-powered designs PWM Current Regulation Built-in current limiting and chopping control for better motor performance Multiple Control Modes Forward, reverse, brake, and coast control via simple logic inputs Protection Features Overcurrent protection Short-circuit protection Undervoltage lockout (UVLO) Thermal shutdown Low-Power Sleep Mode Reduces standby current for battery applications Compact Package 16-pin TSSOP (PW package), optimized for space-constrained PCB designs #CommonPartsLibrary #IntegratedCircuit #PowerManagement

LED Driver IC 16 Output Linear PWM Dimming 25mA 28-TSSOP The PCA9685 is an I2C-bus controlled 16-channel LED controller optimized for Red/Green/Blue/Amber (RGBA) color backlighting applications. Each LED output has its own 12-bit resolution (4096 steps) fixed frequency individual PWM controller that operates at a programmable frequency from a typical of 24 Hz to 1526 Hz with a duty cycle that is adjustable from 0 % to 100 % to allow the LED to be set to a specific brightness value. All outputs are set to the same PWM frequency. Each LED output can be off or on (no PWM control), or set at its individual PWM controller value. The LED output driver is programmed to be either open-drain with a 25 mA current sink capability at 5 V or totem pole with a 25 mA sink, 10 mA source capability at 5 V. The PCA9685 operates with a supply voltage range of 2.3 V to 5.5 V and the inputs and outputs are 5.5 V tolerant. LEDs can be directly connected to the LED output (up to 25 mA, 5.5 V) or controlled with external drivers and a minimum amount of discrete components for larger current or higher voltage LEDs. The PCA9685 is in the new Fast-mode Plus (Fm+) family. Fm+ devices offer higher frequency (up to 1 MHz) and more densely populated bus operation (up to 4000 pF). Although the PCA9635 and PCA9685 have many similar features, the PCA9685 has some unique features that make it more suitable for applications such as LCD or LED backlighting and Ambilight: • The PCA9685 allows staggered LED output on and off times to minimize current surges. The on and off time delay is independently programmable for each of the 16 channels. This feature is not available in PCA9635. • The PCA9685 has 4096 steps (12-bit PWM) of individual LED brightness control. The PCA9635 has only 256 steps (8-bit PWM). • When multiple LED controllers are incorporated in a system, the PWM pulse widths between multiple devices may differ if PCA9635s are used. The PCA9685 has a programmable prescaler to adjust the PWM pulse widths of multiple devices. • The PCA9685 has an external clock input pin that will accept user-supplied clock (50 MHz max.) in place of the internal 25 MHz oscillator. This feature allows synchronization of multiple devices. The PCA9635 does not have external clock input feature. • Like the PCA9635, PCA9685 also has a built-in oscillator for the PWM control. However, the frequency used for PWM control in the PCA9685 is adjustable from about 24 Hz to 1526 Hz as compared to the typical 97.6 kHz frequency of the PCA9635. This allows the use of PCA9685 with external power supply controllers. All bits are set at the same frequency. • The Power-On Reset (POR) default state of LEDn output pins is LOW in the case of PCA9685. It is HIGH for PCA9635. #CommonPartsLibrary #IntegratedCircuit #PowerManagement

The ESP32-CAM Ai-Thinker is a compact, low-cost Wi-Fi and Bluetooth-enabled camera development module based on the ESP32-S dual-core microcontroller. It integrates an OV2640 2MP camera sensor, onboard Flash memory, PSRAM, and a MicroSD card slot, making it suitable for IoT vision applications, wireless surveillance, image capture, video streaming, face recognition, and smart home projects. The module combines wireless connectivity and image processing capabilities in a small form factor while maintaining low power consumption. Key Features ESP32-S Dual-Core Processor Tensilica Xtensa LX6 dual-core 32-bit CPU Operating frequency up to 240 MHz Computing performance up to 600 DMIPS Integrated Camera Equipped with OV2640 CMOS image sensor Maximum image resolution: 1600 × 1200 (UXGA, 2MP) Supports JPEG image compression and video streaming Memory 4 MB Flash memory External PSRAM for frame buffering and image processing 520 KB internal SRAM Wireless Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Bluetooth 4.2 BR/EDR and BLE support Storage Built-in MicroSD/TF card slot Supports local storage of images, videos, and data logs Peripheral Interfaces UART SPI I²C PWM ADC DAC GPIO expansion pins Power Supply Operating voltage: 5 V Low-power operation with deep-sleep capability for battery-powered applications Compact Design Module size approximately 27 mm × 40.5 mm PCB antenna onboard Optional external antenna connection on some variants

ESP32-S3-WROOM-1-N8 is a high-performance Wi-Fi and Bluetooth Low Energy (BLE) module from Espressif Systems. It is built around the ESP32-S3 SoC, featuring a dual-core Xtensa LX7 processor, integrated 2.4 GHz Wi-Fi and Bluetooth 5 LE connectivity, 8 MB SPI flash memory, and a PCB antenna. The module is optimized for AIoT, edge computing, human-machine interfaces, smart devices, and industrial IoT applications. Key Features Dual-core Xtensa® LX7 CPU running up to 240 MHz for high-performance embedded applications. 8 MB onboard SPI Flash (N8 variant) for firmware and data storage. 2.4 GHz Wi-Fi (802.11 b/g/n) with data rates up to 150 Mbps. Bluetooth 5 LE support including: Long Range mode 2 Mbps PHY Bluetooth Mesh Extended Advertising AI acceleration support through ESP32-S3 vector instructions for machine learning and signal-processing workloads. USB 1.1 OTG and USB Serial/JTAG integrated, simplifying debugging and USB device applications. Up to 45 GPIOs with extensive peripheral support: SPI I²C I²S UART PWM ADC Touch Sensors TWAI® (CAN-compatible) Camera Interface LCD Interface SDIO Host MCPWM Integrated 40 MHz crystal oscillator, RF matching circuitry, and PCB antenna for reduced external component count. Operating voltage range: 3.0 V to 3.6 V. Compact surface-mount module suitable for space-constrained designs. Typical Applications Smart home and home automation devices HMI displays and touchscreen products Voice recognition and audio processing Edge AI and machine learning applications Industrial IoT gateways and sensors Video streaming and camera systems USB-connected embedded devices Smart agriculture and healthcare equipment N8 specifically indicates 8 MB Flash and no PSRAM, making it a good choice for applications requiring substantial program storage but not large external RAM. #RF-transceiver #Module #ESP32