IC RF TxRx + MCU Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 2.412GHz ~ 2.484GHz 56-VFQFN Exposed Pad The ESP32-S3R8 is a high-performance wireless microcontroller system-on-chip manufactured by Espressif Systems. This device integrates dual-core processing, Wi-Fi connectivity, Bluetooth Low Energy communication, embedded memory resources, and advanced peripheral interfaces within a compact package optimized for embedded and IoT applications. The microcontroller is based on the Xtensa LX7 architecture and is designed to support edge computing, wireless communication, human-machine interfaces, audio processing, AI acceleration, and low-power connected systems. The ESP32-S3R8 includes integrated flash and RAM resources, advanced security functions, vector instruction acceleration, and extensive GPIO/peripheral capability for modern embedded development. The device is widely used in IoT devices, industrial automation systems, smart home equipment, wearable electronics, wireless sensor nodes, edge AI applications, USB-enabled embedded systems, and portable consumer electronics. Its integrated wireless functionality and high processing performance reduce external component count while simplifying system-level design for connected embedded platforms. Engineering Specification Device Type Wireless microcontroller system-on-chip Processor Architecture Dual-core Xtensa LX7 microcontroller architecture Wireless Connectivity Integrated Wi-Fi and Bluetooth Low Energy communication Processing Features High-performance embedded processing with vector instruction acceleration Memory Resources Integrated RAM and embedded memory architecture Communication Interfaces SPI I2C UART I2S USB PWM ADC GPIO interfaces Wireless Features Secure wireless networking and low-power communication support USB Capability Integrated USB communication and device functionality AI and DSP Features Vector instruction support for AI and digital signal processing workloads Security Features Hardware encryption and secure boot support Power Characteristics Low-power operating modes for battery-powered systems Package Type QFN surface-mount package Mounting Style Surface mount technology Applications IoT devices Wireless embedded systems Industrial automation Smart home electronics Edge AI applications Wearable devices Consumer electronics USB-enabled systems Sensor networks Embedded communication platforms Manufacturer Espressif Systems #commonpartslibrary #esp32 #esp32s3 #wirelessmcu #microcontroller #iot #embeddedhardware #wifi #bluetoothlowenergy #espressif #surfaceountcomponents #electronicsdesign #edgeai #wirelesscommunication #consumerelectronics

25 MHz ±30ppm Crystal 20pF 50 Ohms 4-SMD, No Lead The FL2500283Z is a 25 MHz surface-mount quartz crystal manufactured by Diodes Incorporated, part of the FL series (SaRonix-eCera™). It is designed for use as a stable clock reference in digital circuits such as microcontrollers, communication modules, and embedded systems. This crystal uses an AT-cut resonator inside a compact 3.2 mm × 2.5 mm (3225) ceramic package, making it suitable for high-density PCB designs and modern electronics. Key Features Standard Frequency 25 MHz fundamental mode crystal Compact SMD Package 3.2 × 2.5 mm (3225), 4-pad configuration Height ~0.68–0.75 mm AT-Cut Quartz Technology Provides good frequency stability and low drift Frequency Stability & Tolerance Typical: ±10 to ±30 ppm Load Capacitance Typically 20 pF Low ESR Around 50–60 Ω, suitable for MCU oscillator circuits Wide Operating Temperature Common range: -20°C to +70°C (some variants up to -40°C to +125°C) Surface-Mount Compatibility Ideal for automated assembly and reflow soldering RoHS / Lead-Free Environmentally compliant design Typical Applications Microcontroller clock (STM32, ESP32, AVR, etc.) Communication modules (Wi-Fi, Ethernet, RF) Embedded systems Consumer electronics Industrial control boards #Crystal #Oscillator #Resonator #SaRonix-eCera™ FL

IOT weather monitoring system with ESP32

This project is a reference design for an ESP32-WROOM-32E based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design

2.4GHz -98dBm SMD,19.2x18mm RF Transceiver Modules and Modems RoHS The ESP32-WROOM-32UE-N16 is a 2.4 GHz wireless MCU module built around the ESP32 SoC. It combines a dual-core processor, integrated Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 (Classic + BLE), along with rich peripherals. The “UE” variant specifically uses a U.FL / IPEX connector for an external antenna, making it ideal for applications that require better RF performance or flexible antenna placement (e.g., enclosed products or long-range communication). The “N16” indicates 16 MB external flash memory, suitable for large firmware, OTA updates, and data-heavy applications. Processing Dual-core Xtensa LX6 32-bit CPU Clock speed up to 240 MHz Memory 16 MB Flash (N16 variant) ~520 KB SRAM + 448 KB ROM Connectivity Wi-Fi: 802.11 b/g/n (up to 150 Mbps) Bluetooth: v4.2 (BR/EDR + BLE) Frequency: 2.4 GHz band Antenna External antenna via U.FL connector Better range and flexibility vs PCB antenna Interfaces / Peripherals GPIO (≈26 usable pins) UART, SPI, I2C, I2S, SDIO ADC, DAC PWM (LED & motor control) Capacitive touch sensing Security Hardware encryption: AES, SHA, RSA Secure boot & flash encryption support Power Operating voltage: 3.0V – 3.6V (typ. 3.3V) Multiple low-power modes for battery applications Environmental Operating temperature: -40°C to +85°C Physical Surface-mount module (~38 pins / 52 pads depending on reference) Compact and RF-shielded design Typical Applications Smart home devices (IoT) Industrial automation Wireless sensors and data loggers Wearables and consumer electronics Remote monitoring systems #Module #ESP32

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

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

This project is a reference design for an ESP32-WROOM-32E based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design

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

This project is a reference design for an ESP32-WROOM-32E based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #simpleEmbedded #espressif #template

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

ESP32 programming without additional components #connector #pinheader #tht

The AMS1117-3.3RG is a fixed-output, low-dropout (LDO) linear voltage regulator that provides a regulated 3.3 V output from a higher input voltage. It is capable of delivering up to 1 A output current and is commonly used in microcontroller, communication, and embedded-system power supplies where a stable 3.3 V rail is required. The device includes built-in protection features such as current limiting and thermal shutdown for improved reliability. Key Features Fixed 3.3 V output voltage Supports up to 1 A output current Low dropout voltage, typically around 1.2 V and up to 1.3 V at 1 A load Input voltage capability up to 12 V (some manufacturer variants specify higher absolute maximum ratings) Good line and load regulation Built-in current limiting protection Built-in thermal shutdown protection Available in SOT-223 surface-mount package Suitable for post-regulation of switching power supplies and general 3.3 V power conversion applications Typical Applications ESP32, STM32, and other microcontroller-based systems Embedded and IoT devices Communication modules LCD monitors and display circuits Battery-powered equipment Post-regulation for DC/DC converters Motherboards and expansion cards #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LDO

Unexpected Maker ProS3 esp32 dev board

CORE ESP32 The core board is a core board designed based on Lexin ESP32-C3, with a size of only 21mm * 51mm. The board edge is designed with stamp holes, which is convenient for developers to use in different scenes. The core board supports UART, GPIO, SPI, I2C, ADC, PWM and other interfaces, which can be selected according to actual needs.

ESP32-C3FN4 QFN-32_L5.0-W5.0-P0.50-BL-EP3.7 LCSC Part Number: C2848860 JLCPCB Part Class: Extended Part Manufactured by ESPRESSIF(乐鑫) Espressif ESP32-C3FN4 2.4GHz Wi-Fi 802.11b/g/n and Bluetooth 5.0 LE wireless SoC, RISC-V single-core microcontroller, integrated 4MB flash memory, 2.402GHz to 2.48GHz RF transceiver, antenna not included, surface-mount package, suitable for IoT devices, wireless sensors, smart home, BLE and Wi-Fi embedded applications. Search Keywords: ESP32-C3FN4, Espressif ESP32-C3FN4, ESP32 C3FN4, ESP32-C3 4MB flash, ESP32-C3 WiFi Bluetooth SoC, ESP32-C3FN4 RF transceiver, ESP32-C3FN4 Bluetooth 5.0, ESP32-C3FN4 WiFi 802.11bgn, ESP32-C3FN4 SMD, ESP32-C3FN4 DigiKey, ESP32-C3FN4 datasheet, 1904-ESP32-C3FN4TR-ND, 1904-ESP32-C3FN4CT-ND, ESP32-C3 RISC-V SoC Hashtags: #ESP32C3FN4 #ESP32C3 #EspressifESP32C3 #EspressifSystems #WiFiBluetoothSoC #WiFiSoC #BluetoothLESoC #BLE5 #80211bgn #RISCVMicrocontroller #4MBFlash #RFTransceiver #24GHzWiFi #IoTSoC #WirelessMCU

ESP32-C3-MINI-1-H4 is a compact, low-power wireless module from Espressif Systems built around the ESP32-C3 SoC. It integrates a 32-bit RISC-V processor, 2.4 GHz Wi-Fi, Bluetooth 5 LE, onboard 4 MB flash memory, crystal oscillator, RF matching circuitry, and a PCB antenna in a small surface-mount package. The module is designed for IoT devices, smart home products, industrial automation, wearable electronics, and wireless sensor applications. Key Features 32-bit RISC-V single-core processor with clock speeds up to 160 MHz. 2.4 GHz Wi-Fi 4 (802.11 b/g/n) connectivity. Bluetooth 5 Low Energy (BLE 5.0) support with long-range capability. 4 MB embedded SPI flash memory (H4 variant). 384 KB ROM and 408 KB SRAM for application execution. Integrated PCB antenna for simplified RF design. USB Serial/JTAG controller for programming and debugging without an external USB-to-UART bridge. Multiple peripheral interfaces: UART SPI I²C I²S PWM GPIO ADC USB JTAG Operating voltage range: 3.0 V to 3.6 V. Supports secure boot, flash encryption, and hardware cryptographic acceleration. Compact SMD module suitable for space-constrained designs. Typical Applications Smart home and home automation devices Wireless sensors and data loggers IoT gateways and edge devices Industrial monitoring and control systems Bluetooth beacons Wearable electronics Consumer connected products H4 Variant Note: The ESP32-C3-MINI-1-H4 version includes 4 MB flash memory and supports an extended operating temperature range up to 105°C, making it suitable for more demanding industrial environments. #RF-Transceiver #ESP32 #Module

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.412GHz ~ 2.484GHz PCB Trace Surface Mount #BLE #WIFI #ESP32 #MCU #RF

IC RF TxRx + MCU Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 2.412GHz ~ 2.484GHz 56-VFQFN Exposed Pad #commonpartslibrary #mcu #esp32 #bluetooth #wireless #rf