Dual USB 5V 1A 2.1A  PCB Power Module with LCD This is the Dual USB 5V 1A 2.1A Digital LCD 18650 Lithium Battery Charging Module Accessories, 18650 Circuit board shell. Meet the individual needs of your DIY, but you must understand basic electronic assembly. The motherboard comes with protection Charging, overcharge protection, over-discharge protection, and overcurrent protection. An intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge. Output voltage and current stable, will not harm user devices. Note : The circuit board is connected to the battery negative B-, B + is positive, do not connect reversed, connecting reversed will burn the board, the battery is connected in parallel welding, assembling battery. Note that the insulation between the battery and the circuit board, battery lead not to touch the circuit board, so as not to cause a short circuit.

DX-BT18 Bluetooth Dual Mode Module For SPP2.0 + BLE4.0 Transparent Serial Port The DX-BT18 Bluetooth modules are a type of wireless communication module that can be added to a project through serial or SPI communication protocols. The advantage of using Bluetooth modules is that they are easy to set up and use. The DX-BT18 module uses a serial protocol for communication. All Bluetooth modules that use serial communication protocol support AT Commands, which are listed in the datasheet of each product. DX-BT18 dual-mode Bluetooth module is a dual-mode Bluetooth module (Dual-Mode) that is specially designed for smart wireless data transmission by Shenzhen DX-SMART Technology Co., Ltd. and follows the Bluetooth 4.2 standard protocol. DX-BT18 module applies to wireless data transmission field, uses BT4.2 Bluetooth chip + PCB printed antenna design, SOC chip embedded BT4.2 Dual-Mode protocol stack, supports data transmission of Windows, Linux, Android, iOS and other systems and applications, with industrial design, transmission distance, data stability, simple operation, high-cost performance, and technology leading edge. Pinout: Pinout of DX-BT18 Bluetooth Module Features Dual-mode module following the Bluetooth 4.2 standard protocol Supports SPP2.0 and BLE4.0 protocols for wireless data transmission Uses a BT4.2 Bluetooth chip and has a PCB-printed antenna design Has 6 pins: VIN, GND, STATE, EN, RX, and TX Uses serial protocol for communication and supports AT Commands Designed for smart wireless data transmission Potential uses include wireless automation, remote control devices, IoT applications, and robotics. Application: Bluetooth wireless data transmission Hand-held POS devices Can be used in medical equipment for wireless data transmission Smart home control Car detection OBD equipment Bluetooth printer Bluetooth Remote Control Toy Anti-lost device, LED light control

Elecrow Pitower Gen 1 Raspberry Pi 5 Mini PC Case With 3 Fans and 1.3” OLED Screen The Elecrow Mini PC Case is a compact and multifunctional enclosure designed for both Raspberry Pi 5 and Jetson Orin Nano single-board computers. With a carefully engineered internal structure, it allows users to switch between boards depending on project requirements, while retaining full access to USB, HDMI, Ethernet, and GPIO ports. Its built-in 1.3-inch OLED screen provides real-time system status and performance information, while the integrated cooling system makes it an excellent choice for those seeking a Raspberry Pi case with fan to ensure stable operation in a space-saving design. Beyond protection, this Raspberry Pi 5 case delivers a one-stop solution by integrating key functional components such as radiators, adapters, and display, eliminating the need for extra accessories. It also supports PCIe M.2 storage expansion for Raspberry Pi 5, allowing high-speed SSDs (2230, 2242, 2260, 2280) to be added for greater storage capacity. Perfect for developers, hobbyists, and professionals, the Elecrow Mini PC Case combines durability, expandability, and convenience in an exclusive self-developed design. Features: Dual-Board Compatibility: Supports both Raspberry Pi 5 and Jetson Orin Nano, allowing flexible use across different projects. Compact Design: Space-saving chassis with maximum functional integration, designed to keep setups clean and efficient. Advanced Cooling System: Equipped with 3 built-in fans to maintain stable performance during extended operation. 1.3-Inch OLED Display: Real-time monitoring of system status, operation information, and performance metrics for an intuitive user experience. Rich Connectivity Options: Retains essential interfaces including USB, HDMI, Ethernet, and GPIO for versatile connections. PCIe M.2 Expansion (Raspberry Pi 5): Internal socket supports SSD sizes 2230, 2242, 2260, and 2280 for high-speed storage upgrades. RTC Function (Raspberry Pi Version): Built-in real-time clock support for accurate timekeeping and enhanced functionality. All-in-One Solution: Integrated design includes cooling, display, radiators, and adapters, eliminating the need for additional accessories. Pitower Gen 1 Mini PC Case Diagram:

ENC28J60 Ethernet LAN Module This ENC28J60 Ethernet LAN Network Module is a standalone Ethernet controller with a Serial Peripheral Interface (SPI) (SPI). It is intended to function as an Ethernet network interface for any SPI-equipped controller. The ENC28J60 Ethernet Breakout Board Module makes use of the new Microchip ENC28J60, a popular Ethernet Controller IC with a slew of features that can handle the majority of network protocol requirements. This Ethernet LAN module can be directly connected to the majority of microcontrollers. The network module communicates with the Arduino type board via the SPI protocol, making it ideal for projects involving the ARDUINO, PIC, AVR, or STM32. The ENC28J60 consists of seven major functional blocks: An SPI interface that serves as a communication channel between the host controller and the ENC28J60. Equips control registers for controlling and monitoring the ENC28J60. A dual port RAM buffer for received and transmitted data packets. An arbiter to control the access to the RAM buffer when requests are made from DMA, transmit and receive blocks. The bus interface that interprets data and commands received via the SPI interface. The MAC (Medium Access Control) module that implements the IEEE 802.3 compliant MAC logic. The PHY (Physical Layer) module that encodes and decodes the analog data that is present on the twisted-pair interface. Also check our lan cable , which is designed for connecting a PC to a Network HUB/Switch/Router/ADSL Broadband Router. Connecting The ENC28J60 Ethernet LAN Module To Arduino: Connecting The ENC28J60 Ethernet LAN Module To Arduino

CAT5E Ethernet LAN Cable 24 AWG (1 Meter) This is the Ethernet LAN Cable, The speed and quality of a wired LAN depend greatly on how fast data is transmitted between computers and network components. The Terabyte CAT-5E Ethernet patch cable can transmit data at speeds up to 1,000 Mbps (or to 1 Gigabit per second)—10 times faster than Cat-5 cables (100 Mbps). Whether it’s server applications, cloud computing, or HD video streaming, the Terabyte CAT-5E Ethernet patch cable promotes a fast, consistent connection.

ENC28J60 Ethernet LAN Module Want to connect your project to the internet? The ENC28J60 Ethernet LAN Module makes it simple! This small module uses the Microchip ENC28J60 Ethernet Controller and connects to your microcontroller through SPI. It’s easy to set up and gives you fast, reliable internet speeds. If you've used the Arduino Ethernet Shield V1.0 before, you'll find this module works similarly and can connect 10 wires, and you're good to go. It's a compact, handy solution for getting your projects online quickly! This ENC28J60 Ethernet LAN Module is best for Raspberry, Arduino, IoT, & other microcontroller projects. 7 major functional blocks of ENC28J60: An SPI interface for communication with the host controller. Control registers are used to manage and monitor the module. A dual-port RAM buffer for received and transmitted data packets. An arbiter to manage access to the RAM buffer from various blocks. A bus interface that interprets data and commands via SPI. The MAC (Medium Access Control) module for IEEE 802.3 compliant logic. The PHY (Physical Layer) module for encoding and decoding analog signals on the twisted-pair interface.

Eye Blink Sensor An eye blink sensor relies on infrared technology to detect if a person's eye is closed. The sensor is made up of two components: an infrared transmitter and an infrared receiver. The transmitter emits infrared waves onto the eye, while the receiver searches for changes in the reflected waves, indicating that the eye has blinked. The sensor's output is sent to a microcontroller board, such as Arduino, Raspberry Pi , AVR, PIC, or other microcontrollers. To create an eye blink sensor with an Arduino , one requires an eye blink sensor, an Arduino board, and a switch between the power supply and the Arduino. The sensor has three pins: GND (ground), 5V, and OP (output). The sensor's output is transmitted to the Arduino board , which can be programmed to execute various tasks based on the output. Note : This eye blink sensor is strictly restricted for hobby projects and not recommended for real-time use. Pinouts: VCC(Power) GND(Ground) DO(Digital Output) Applications: Digital Eye Blink Monitor Vehicle Accident Prevention using eye blink sensor Suite for real-time driving applications Facility to interface microcontroller devices

FIW 6F22 9V Battery with Connector Alkaline batteries are primary batteries that rely on the chemical reaction of zinc and manganese dioxide (Zn/MnO2) to produce electricity. A reusable alkaline battery with specially designed cells. Toys, electronics, radios, and other devices that require batteries of this size all benefit. This battery has a large capacity and can be used in a variety of electronic devices. Used with special battery latches, connectors, or clips. Model: 6f22m plant, sealed in original packaging. Zinc Carbon Nominal Voltage (V): 9 V Discharge Resistance (?): 620, the casing should be made of metal. This battery clip can use a 9V battery to power LEDs and other devices. clip.

Flash 4S 30A 148V Li-Ion Lithium 18650 Battery Protection Board The Flash 4S 30A 148V Li-Ion Lithium 18650 Battery Protection Board is a high-performance protection board designed for 4S lithium iron phosphate batteries. With a continuous discharge current of up to 30A and an instantaneous discharge of 56A, this board ensures safe and efficient operation of your battery system. It features a built-in balance circuit that maintains voltage stability and prolongs battery life. This compact protection board comes with an integrated cable for easy setup, supporting fast charging up to 20A with a charging voltage of 14.8V. Additionally, the board operates within a wide temperature range from -30°C to +80°C, making it suitable for various applications.

Forte ER34615 D 3.6V Lithium Battery Introducing the Forte ER34615 D 3.6V Lithium Battery, now available at Iotcart! This powerful battery has a huge 20,000 mAh capacity, which means it will keep your devices running longer. It’s perfect for many uses, such as reading meters (for water, electricity, gas, and AMR), alarm and security systems (like smoke alarms), GPS systems, GSM systems, real-time clocks, car electronics, digital remote controls, and radios. The Forte ER34615 battery's reliable power supply makes it an excellent choice for critical military equipment and remote surveillance systems. Its extended lifespan offers uninterrupted usage of your gadgets. Its simple D-shaped form also makes it easy to insert and remove from a variety of devices. With its high energy efficiency, you won’t have to replace it often, saving you time and money. Whether you need it for utility meters, security systems, GPS navigation, or military use, the Forte ER34615 D 3.6V Lithium Battery is a dependable choice. Get yours at Iotcart today and keep your devices powered up! Key Features: The high and stable operating voltage ensures your devices run smoothly. Superior voltage response during pulsing delivers reliable power during high-demand moments. With a low self-discharge rate of less than 1% after one year of storage at 20°C, the battery stays ready for use. The non-flammable inorganic electrolyte design guarantees safety. Non-restricted transport allows for easy shipping and handling without any specific restrictions. Applications: Ideal for making sure that CMOS memory, RTC (real-time clock), and computer backup work properly. Ideal for use with electricity, gas, and water meters, as well as other utility metering systems. Trusted in automobile security systems, tire pressure monitoring systems, and a variety of other automotive and technological applications. Ideal for powering smoke detectors, temperature monitors, and other wireless alarm sensors. Applied in GPS systems, sea buoys, lifejacket lights, liferaft lights, cargo-locating systems, and more for remote monitoring needs. Reliable in radio communication, night vision equipment, tracking and positioning systems, and other military electronic devices. Compatible with toll gates and electronic toll tag systems for seamless operation.