13.56 MHz NTAG213 137 Byte Sticker NFC Tag

HX203D Smart-ID Chip Card Reader This HX203D card reader can read RFID card serial numbers and output to your computer according to the specified format, then management software derives many more functions. This RFID card reader is a simple, fast-read card. Belong to standard HID devices do not need to install the driver and can be read in any number, this function is suitable for extended functionality in existing software, without any modification to the original software. Check out our entire range of IOT & Wireless Applications: Access control Security needs. Time attendance Inventory Management Asset Tracking

SmartElex Ebyte E73-2G4M04S1AX Bluetooth Wireless Module The SmartElex Ebyte E73-2G4M04S1AX Bluetooth Wireless Module is a compact BLE module based on the Nordic nRF52810 chipset, designed to add Bluetooth connectivity to embedded and IoT projects. It enables reliable wireless communication for data transfer, device control, and sensor monitoring without complex RF design, making it suitable for students, makers, educators, engineers, and startups working on Bluetooth-enabled systems. This Bluetooth module offers an accessible way to prototype smart devices, wearable tech, and automation solutions where low power consumption and stable connectivity are important. This nRF52810 module is ideal for IoT applications, robotics control, wireless sensor networks, BLE beacons, home automation systems, and smart consumer electronics. It integrates smoothly with development platforms like Arduino, Raspberry Pi, ESP32, and various microcontroller environments, allowing quick setup and easy firmware development. With dependable BLE communication and beginner-friendly integration, the SmartElex Ebyte E73-2G4M04S1AX module is a strong choice for prototyping, academic learning, and early product development where Bluetooth 4.2/5.0/5.2 compatibility and low power operation are essential. Features: Bluetooth module based on Nordic nRF52810 for stable BLE communication Supports Bluetooth 4.2 / 5.0 / 5.2 for wide device compatibility Low-power operation ideal for battery-powered and wearable devices Compact breakout board for easy integration into embedded projects Works with Arduino, Raspberry Pi, ESP32, and other microcontrollers Suitable for IoT systems, BLE beacons, automation, and wireless sensors

7Semi ESP32-DEVKIT-IE ESP32 Development Board WiFi BLE The 7Semi ESP32-DEVKIT-IE is a feature-rich ESP32 WiFi BLE development board built around the powerful ESP32-WROVER-IE module. With its dual-core processor, 8MB Flash memory, and IPEX antenna connector for enhanced RF performance, this board is designed for smooth wireless communication and reliable IoT prototyping. Whether you're building connected devices, experimenting with sensors, or working on automation systems, the DEVKIT-IE gives you the flexibility and performance you need. It offers a breadboard-friendly layout, a CP2102 USB-to-UART bridge for easy programming, and multiple power options including Micro USB, 5V, and 3.3V. Developers can take advantage of the expandable GPIO pins and rich peripheral support (PWM, ADC, DAC, I2C, SPI, I2S, and more), making this board ideal for IoT projects, DIY electronics, and embedded system development. The combination of stable WiFi/BLE connectivity and robust ESP32 performance makes it a dependable choice for hobbyists and professionals alike. Features: Built around the ESP32-WROVER-IE module, offering dual-core processing power and reliable WiFi + Bluetooth connectivity. Includes 8MB Flash memory for more complex programs, data handling, and IoT applications. Equipped with an IPEX antenna connector, delivering improved RF performance and wider wireless range. Provides a CP2102 USB-to-UART bridge for simple, fast programming and debugging. Breadboard-friendly pin layout with extensive GPIO access for sensors, displays, actuators, and custom electronics. Supports multiple power inputs: Micro USB, 5V, or 3.3V, offering flexibility for various project setups. Ideal for beginners and professionals building IoT solutions, automation systems, wearables, and smart devices. Integrated PCB components and onboard buttons (EN & Boot) for smooth firmware upload and development workflows. ESP32 Devkit Pinout Diagram:

SmartElex TB-03F Bluetooth Module for Smart Lighting The SmartElex TB-03F Bluetooth Module for Smart Lighting is a compact and efficient Bluetooth 5.0 Low Power Module built on the TLSR8253 chipset, specially designed for intelligent lighting control systems. It conforms to BT 5.0 low power Tmall Genie Mesh standards, enabling direct control through Tmall Genie voice commands. Using star network communication and Bluetooth broadcast technology, this Bluetooth Module ensures quick and reliable response even when multiple lighting devices are connected. With low power consumption, minimal latency, and stable short-range wireless communication, the TB-03F is an ideal solution for modern smart lighting and IoT-based automation applications. Features: Tmall Elf can control it directly without using a gateway. SMD-22 Package Six PWM outputs. With on-board antenna, there is no need to create antenna. Brightness (duty cycle) adjustment range: 5%-100%. Factory preset 50% duty cycle for cool and warm hues. PWM output frequency: 1KHz. Supports numerous sleep modes, including deep sleep current as low as 0.4 uA. With a wall switch to switch color temperature. Support secondary development.

SmartElex HC-08 Bluetooth 4.0 BLE Module for Data Transfer The SmartElex HC-08 Bluetooth module is a compact and reliable HC 08 Bluetooth module designed for wireless data communication in embedded projects. It allows devices to exchange data over Bluetooth Low Energy, making it useful for applications that require short-range wireless connectivity with low power consumption. This BLE 4.0 module is ideal for students, makers, educators, engineers, and startups who want to add simple and efficient wireless communication to their electronics projects. The module integrates easily with popular platforms such as Arduino, Raspberry Pi, and ESP32, making it suitable for robotics, IoT devices, automation systems, and rapid prototyping. Its stable BLE communication helps enable applications like wireless sensors, mobile app control, and data logging. With straightforward serial communication and dependable performance, this wireless communication module simplifies the development of Bluetooth-enabled projects. Features: Bluetooth 4.0 BLE module for low-power wireless data transfer Enables simple and stable serial communication over Bluetooth Suitable for short-range wireless connectivity in embedded projects Easy to interface with Arduino, Raspberry Pi, and ESP32 Low power operation ideal for battery-powered applications Useful for IoT, robotics, automation, and wireless control projects

SmartElex PB-03 PHY6252(SSOP24) Bluetooth Module The SmartElex PB-03 PHY6252 Bluetooth Module is a compact low-power Bluetooth module designed for easy wireless communication in embedded and IoT projects. It allows users to add Bluetooth connectivity to their devices for data transfer, control, and monitoring without needing complex RF hardware design. This Bluetooth module is ideal for students, hobbyists, educators, and engineers building wireless prototypes, learning app-based control, or developing smart products that require energy-efficient Bluetooth communication. This module is commonly used in IoT systems, automation projects, wireless sensors, robotics, and consumer electronics where reliable Bluetooth connectivity is required. It works smoothly with development platforms like Arduino, Raspberry Pi, and ESP32, enabling quick pairing and integration for testing and deployment. With stable performance and low power consumption, the SmartElex PB-03 module is a practical choice for DIY electronics, classroom learning, and early-stage product development that needs simple and effective Bluetooth communication. Features: Low-power Bluetooth module for wireless data communication Supports easy pairing for app-based control and monitoring Compact design ideal for embedded and space-constrained projects Works with Arduino, Raspberry Pi, ESP32, and other microcontrollers Suitable for IoT devices, wireless sensors, and automation projects Beginner-friendly module for prototyping and product development

7Semi ESP32-C6 Mini Wifi Development Board Qwiic (DC-10116) The 7Semi ESP32-C6 Mini Wifi Development Board Qwiic is a compact and powerful wireless development board built around the modern ESP32-C6 chipset. It brings together fast Wi-Fi connectivity and flexible input/output options in a small Qwiic-compatible form factor, making it easy to use in projects that need smart communication and control. This board supports Wi-Fi 6 and Bluetooth/BLE connectivity, along with plenty of programmable pins for sensors, modules, and other components. With its Qwiic connector, you can plug in compatible accessories without soldering, simplifying prototyping and expanding your project quickly. Whether you’re building IoT devices, smart sensors, or remote controls, this ESP32-C6 board delivers reliable performance and effortless integration. Features: Powered by the ESP32-C6 chipset for modern wireless applications Supports Wi-Fi 6 for faster and more reliable connectivity Built-in Bluetooth / BLE support for short-range communication Qwiic connector for quick, solder-free sensor and module connections Compact form factor ideal for IoT and embedded projects Multiple GPIO pins for connecting sensors, actuators, and displays Compatible with popular development environments and libraries Suitable for smart devices, automation, and prototyping Pinouts

7Semi ESP32-DEVKIT-E – ESP32 WiFi BLE Development Board with CP2102 USB-UART The 7Semi ESP32-DEVKIT-E is a compact and powerful development board built around the ESP32-WROOM-32E module, offering dual-core processing, onboard WiFi, and Bluetooth connectivity. Designed for makers, students, and IoT developers, it provides reliable wireless performance and plenty of GPIO pins to interface with sensors, displays, motors, and more. Whether you're experimenting with automation, creating smart devices, or building connected prototypes, this board gives you the flexibility and power needed to push your ideas further. With a CP2102 USB-to-UART bridge for easy programming, breadboard-friendly spacing, and multiple power input options (USB, 5V, or 3.3V), the ESP32-DEVKIT-E is built for smooth prototyping. It delivers a stable development experience with 4MB Flash, a PCB antenna, and support for protocols like SPI, I2C, I2S, ADC, DAC, and PWM - making it ideal for IoT, robotics, wearables, smart home projects, and low-power connected applications. Features: Powered by the ESP32-WROOM-32E module featuring a dual-core processor running at 160MHz for fast and efficient performance. Integrated WiFi and Bluetooth support enables seamless wireless connectivity for IoT and smart device applications. Includes multiple GPIO pins that allow easy interfacing with sensors, displays, motors, and other electronic components. Breadboard-friendly pin layout ensures easy prototyping and smooth development workflows. Equipped with a CP2102 USB-UART bridge for convenient programming and debugging via USB. Flexible power options including Micro USB, 5V, and 3.3V inputs to suit a wide variety of project needs. Built-in PCB antenna, 4MB flash memory, and compact, cost-effective design ideal for beginners and advanced developers alike. ESP32 Devkit Pinout Diagram:

Seeed Studio XIAO ESP32-S3 Development Board Supports Wi-Fi & Bluetooth 5.0 The Seeed Studio XIAO ESP32-S3 Development Board is a compact and powerful ESP32 development board designed for IoT, smart home, wearable devices, and robotics projects. Powered by a 240MHz Xtensa 32-bit LX7 dual-core processor, it supports both Wi-Fi and Bluetooth 5.0 for seamless wireless communication. With its 2.4GHz rod antenna, reliable connectivity is ensured even in demanding environments. The board also features an ultra-low-power deep sleep mode, consuming as little as 14μA, making it perfect for battery-powered applications. Additionally, it includes lithium battery charging management, offering convenience for portable and energy-efficient projects. Features: Powerful MCU Board: Incorporates the ESP32S3 32-bit, dual-core, Xtensa processor working at up to 240MHz, mounted multiple development ports, Arduino and MicroPython support. Outstanding RF performance: Supports 2.4GHz WiFi and BLE 5.0 dual wireless communication, as well as 100m+ remote communication when linked with U. FL antenna. Elaborate Power Design: Lithium battery charge management capability, offering four power consumption models, including deep sleep mode with power consumption as low as 14μA. Thumb-sized Compact Design: 21 x 17.8mm, adopting the iconic XIAO form factor, appropriate for space-limited projects like wearable devices. Perfect for production: Breadboard-friendly and SMD design, with no components on the rear. Applications: Internet of Things Wearable devices Smart Homes Robotics Health monitoring Education Low-Power (LP) networking Rapid prototyping XIAO ESP32-S3 Development Board Pinout Diagram

WeMos Lolin V1.0 wifi+Bluetooth This is WeMos LOLIN32 board which is based on ESP 32 Rev1 Wifi and Bluetooth Board. The WeMosboard is designed perfectly for DIY wifi-based projects compatible with Arduino. This WeMos Lolin wifi board is inspired by Adafruit’s Feather series. It has 4 MB flash memory onboard, a USB-serial adapter (cp210x), and a LiPo battery charger and connector. All the relevant pins are broken out and well-labelled, especially on the bottom. It has a nice central reset button and even a single-user LED for your blinking pleasure. Pinout: Pinout of WeMos Lolin V1.0 wifi+Bluetooth Applications: Wireless Communications IoT Applications Control System Home A utomation

0.9V-5V to 5V DC-DC USB Step Up Power Boost Converter Module The USB converter modules produce an output of 5V and feature an LED indicator. It can be used in various applications like mobile phone, pad, GPS, automobile data recorder and Bluetooth device. Step-up Module with 0.9-5V input, output 5V for many digital devices, so this is really a great module for designing a portable charger. Useful for your USB charger projects and onboard USB device supply solutions. (ie GoPro cameras) You can supply it with single-cell LiPO or an AA size battery or others. Two AA batteries can output a current of 500 ~ 600MA, a single AA battery power supply can output 200ma current supply, great for mobile phones camera, single-chip, and digital products supply. check out : 0.9V-5V to 5V 600MA USB Output charger step up Mini DC-DC Boost Converter Applications: USB voltage regulator for USB-powered device. This module will bring the USB voltage required for your application at regulated 5V output. Various USB devices need 5V from low voltage batteries. Charge mobile phone/MP4/MP3 from AA battery when traveling

Seeed Studio XIAO nRF52840 Development Board Supports Bluetooth 5.0 The Seeed Studio XIAO nRF52840 Development Board is a powerful yet compact nRF52840 module designed by Nordic, bringing wireless capability to the XIAO family for the first time. This versatile nRF52840 board supports Bluetooth 5.0 and is optimized for low power consumption, making it an excellent choice for IoT, wearable devices, and Bluetooth-based applications. With its tiny size and robust performance, the Seeed Studio XIAO nRF52840 is the perfect microcontroller for developers looking to build efficient and reliable wireless solutions. Features: Versatile Microcontroller: Incorporate the Nordic nRF52840 chip with FPU, operating up to 64 MHz, mounted multiple development ports, supported by Arduino / CircuitPython /Micropython Wireless Capabilities: Implement Bluetooth 5.0, BLE functions with onboard antenna, also provide NFC connectivity Elaborate Power Design: Provide ultra-low power consumption as 5 μA in deep sleep mode while supporting lithium battery charge management Thumb-sized Design: 21 x 17.8mm, Seeed Studio XIAO series classic form-factor, suitable for wearable devices Perfect for Production: Breadboard-friendly & SMD design, no components on the back

DFRobot Bluetooth 5.0 Audio Receiver Board The Bluetooth 5.0 Audio Receiver Board is a compact and cost-effective solution for adding wireless capabilities to your existing speakers. This versatile Bluetooth audio receiver allows you to easily transform any old speaker system into a modern wireless setup without complicated wiring or expensive replacements. The module features the latest Bluetooth 5.0 technology, ensuring stable connections and quality audio transmission up to 15 meters in visible range. With its automatic reconnect function, you won't need to repeatedly pair your devices - once connected, the module remembers your device for future use. The board can be powered either through a micro-USB connection or a 3.7V lithium battery, giving you flexibility in how you install and use this wireless speaker converter. What makes this Bluetooth 5.0 adapter particularly valuable is its dual functionality. Beyond serving as a wireless audio receiver, it can also function as a computer sound card. By simply short-circuiting the Sound Card pads on the back of the module and connecting it to a computer via USB cable, you can use it as a USB sound card module - perfect for computers with damaged audio outputs or for adding an extra audio interface. The operation is straightforward: after powering on, the blue indicator flashes as the module enters Bluetooth mode and plays an audio prompt while waiting for pairing. Your phone will detect the module as "BT5.0-Audio," and once connected, the indicator remains solid when idle and blinks slowly during music playback. Features: Power supply options: micro-USB or 3.7V lithium battery for flexible installation. Bluetooth version: 5.0 with automatic reconnect function for stable connections. Transmission distance: 15 meters in visible range for wide coverage. Audio decoding support: WAV, APE, FLAC, and MP3 formats. Dual functionality: works as both Bluetooth receiver and computer sound card. Clear connection status indication through LED light patterns. Compact size for easy integration into existing audio systems.

WT32-ETH01 Embedded Serial Network Module – ESP32 WiFi + Bluetooth 2-in-1 Gateway with Ethernet Port The WT32-ETH01 Embedded Serial Network Module is a versatile gateway solution that integrates both Wi-Fi and Bluetooth functionalities using the powerful ESP32 chipset. Designed for reliable and efficient network communication, it simplifies the connection of embedded devices to the internet or local networks through its built-in Ethernet port. The module supports various networking modes including Station, SoftAP, and P2P, and allows for seamless TCP/UDP data transmission, making it ideal for IoT applications, smart devices, and industrial automation. With its compact form factor, the WT32-ETH01 supports both half-pad and through-hole connections for flexible mounting. It features high RF performance, low power consumption, and supports remote firmware updates (OTA). Whether you are building smart home systems, connected sensors, or data logging networks, this 2-in-1 Bluetooth and Wi-Fi module provides a reliable and developer-friendly solution for stable wireless communication and easy integration. Features: Dual connectivity support with built-in Wi-Fi (802.11 b/g/n/e/i) and Bluetooth v4.2 BR/EDR + BLE. Ethernet interface (RJ45, 10/100 Mbps) for reliable wired network communication. Supports multiple transmission modes: TCP Server, TCP Client, UDP Server, and UDP Client. Compact and flexible design with half-pad and through-hole connectors for easy integration. High-performance ESP32 chipset offering excellent RF stability and ultra-low power consumption. Supports remote OTA firmware updates via network connection. Operates at 5V or 3.3V, compatible with a wide range of embedded systems. Ideal for IoT, smart home, and industrial automation applications.

Bluetooth 5.0 Dual Mode BLE (Feasycom) The Bluetooth 5.0 Dual Mode BLE (Feasycom) is a high-performance, highly integrated Bluetooth 5.0 BR/EDR/BLE dual-mode module. It operates on the 2400MHz to 2480Mhz ISM frequency band and has a low power consumption of 5mA working current. It is also low cost with excellent performance. The module has a built-in PCB antenna and supports an external antenna. It is the best alternative for the Bluetooth HC05 chip as it has been obsoleted. The Bluetooth module supports communicating with the FeasyBlue app and many other Bluetooth apps. The Bluetooth 5.0 Dual Mode BLE (Feasycom) has a number of features that make it ideal for a variety of applications, including: Features: High performance: The module is based on the latest Bluetooth 5.0 standard, which provides significant improvements in range, speed, and power efficiency over previous versions of Bluetooth. Low power consumption: The module has a low power consumption of 5mA working current, which makes it ideal for battery-powered devices. Low cost: The module is low cost, making it an affordable option for a variety of applications. Built-in PCB antenna: The module has a built-in PCB antenna, which makes it easy to use and requires no additional hardware. Supports external antenna: The module supports external antenna, which can be used to improve the range and performance of the module. Communicates with the FeasyBlue app: The module communicates with the FeasyBlue app, which makes it easy to configure and use the module. Supports many other Bluetooth apps: The module supports many other Bluetooth apps, which makes it compatible with a wide range of devices. The Bluetooth 5.0 Dual Mode BLE (Feasycom) is a versatile and powerful module that is ideal for a variety of applications. It is a high-performance, low-power, and low-cost module that is easy to use and supports a wide range of features. Applications: Printer Health Thermometer Heart Rate Blood Pressure Proximity Also check the Mini elm327 Bluetooth OBD2 , it is designed to display real-time engine data on a mobile phone, including RPM, coolant temperature, boost pressure, throttle position, fuel pressure, and mileage.