74LS47 - BCD to 7-Segment Decoder/Driver IC The 74LS47 accepts four lines of BCD (8421) input data, generates their complements internally and decodes the data with seven AND/OR gates having open-collector outputs to drive indicator segments directly. Each segment output is guaranteed to sink 24 mA in the ON (LOW) state and withstand 15V in the OFF (HIGH) state with a maximum leakage current of 250 µA. Auxiliary inputs provided blanking, lamp test and cascadable zero-suppression functions. Pinout: Pinout of 74LS47 IC

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75 pcs-lot different type mini gear Plastic Gear Set Gears are incredibly useful - they can be used to create custom gearboxes to transfer motion, change output shaft speed, increake torque, and any number of other gear like functions. Different types of gears have different purposes and this kit has a great assortment of regular gears, crown gears, worm gears, linear gears, double reduction gears, and even a few pulleys to experiment and create with. These gears are used in laboratories, science education, and DIY models and RC-airplane/helicopter repair, as well as many household repairs like old music system etc. its a great toolkit for promoting DIY abilities, improving children's, teen's hands-on skills and divergent thinking. The great tools for all kinds of DIY cars, robots, model making accessories Great kit bag for promoting DIY ability,the most complete gear set, includes 64 kinds of gear parts. It can meet your DIY needs Small parts. Not for children under 3 years.

76MHz-108MHz Wireless Stereo FM Radio Kit This DIY electronics kit is perfect for both electronics hobbyists and beginners. The Wireless Stereo FM Radio Receiver Module PCB DIY Electronic Kits 76MHz-108MHz Kit has been optimized for easy element arrangement and high success rates during manufacturing and installation. It has even been used in schools, so its performance is trusted. This RF kit is not just a simple welding assembly. It allows for hands-on adjustment of the coiled-coil and more fun than other simple assembly kits. The main advantage of using a headset is that it takes into account the noise in student classrooms. The FM radio program provides rich and good sound quality, making it possible to launch your own FM radio station. The kit includes an FM scan radio pocket computer using special blocks, including the RDA5807FP FM radio module, a 16-pin dual flat package, and a working voltage of 1.8-3.6V. The circuit includes an FM radio receiver from the antenna to the frequency discriminator output audio signals, with features like a search tuning circuit, a signal detection circuit, a mute circuit, and a compression frequency offset of the frequency-locked loop (FLL) circuit. The IF frequency of the circuit is designed to be 70KHZ, with peripheral circuits without an intermediate frequency transformer. The frequency is selected by an internal RC circuit IF filter to complete. The circuit also includes digital radio tuner buttons for electrical tuning (SEEK +, SEEK-) and volume control buttons (VO). Get started with electronics and DIY radio with this Electronic kit for beginners. Features Functional and high quality, Receives at 76MHz - 108MHz The perfect DIY and practice kit for hobbyist and electronic professionals An excellent tool to educate young pioneers. Applications DIY kit for building a wireless stereo FM radio receiver Can receive frequencies between 76MHz and 108MHz with stereo sound Easy to assemble, suitable for educational or DIY projects Once assembled, can be used to listen to FM radio stations Available for purchase on Amazon and other online retailers

Circuits requiring steady 6v supply

7809 Voltage Regulator (Pack of 5) The LM7809 monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents. Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply Specification RoHS Compliant - Category : Linear Regulatr Package Type: TO-220

7812 Voltage Regulator IC The 7812 IC is a commonly used linear regulator.  Input voltage can range from 12 – 35VDC and it outputs a fixed 12V at over 1A of current and up to 2.2A of surge current. For basic operation, no external components are required. Just hook up the input voltage and ground of the 7812 voltage regulator and you have 5V available on the output. If you are using it at a fair distance from the supply that is providing the input voltage, then a .33uF or larger input filter capacitor is recommended. The part ideally should be a low ESR part such as a Tantalum or Mylar capacitor, but small electrolytic caps generally work fine. Pinout: Pinout of 7812 Voltage Regulator IC Applications: Electronic Communications. LEDs and Flashlights. Load Switches. Electrical Power Supplies. Also check the LM317 Adjustable Voltage Regulator IC available on Iotcart. The LM317 provides a stable, regulated output voltage in the range of 1.2V to 37V and can be adjusted using external resistors. It has a maximum continuous output current of 1.5A, a typical dropout voltage of 1.5V, and operates over a wide range of input voltages (3V to 40V) and temperatures (-40°C to 125°C). The IC features built-in current limiting, thermal shutdown protection, and short-circuit protection. Also check the 7806 Voltage Regulator IC available on the Iotcart website. It operates at an input voltage of 5V, with a maximum input voltage of 35V and a maximum output current of 1.5A. The standby current is 5mA.

7in Raspberry Pi Display Enclosure Case compatible only with the official Raspberry Pi 7" Lcd touch screen. This case is designed to house your Raspberry Pi board and the official Raspberry Pi 7" Lcd touch screen providing protection to the board and the display. The case also acts as a bezel to the display, improving its appearance while housing The board neatly behind it.

7inch Official Raspberry Pi Touch Screen Display Introducing the official Raspberry Pi 7" touchscreen display, the perfect companion for your Pi projects. It offers an immersive visual experience and seamless touch functionality. This 7 inch touch screen display provides versatility and interactivity while creating a tablet, infotainment system, or embedded project. With its 800x480 resolution, the HDMI display delivers crisp and vibrant visuals. The capacitive touch display supports 10-finger touch and allows for precise and intuitive interaction. Say goodbye to physical keyboards and mice - the latest software drivers provide a virtual on-screen keyboard for hassle-free input. Requires only two connections to your Raspberry Pi for installation. Power is drawn from the GPIO port, while a ribbon cable connects to the DSI port. Also, the adapter board handles power and signal conversion. This 7" Raspberry pi display module is compatible with Pi 4, 3 Model A+, 3 Model B+, 3 Model B, 2 Model B, Model B+, and Model A+. Whether you're building IoT devices, home automation systems, or educational projects, It is the perfect choice. Please note: The Raspberry Pi and power supply are not included. Make sure to check the compatibility of your board before purchasing. If you want to use this Raspberry Pi 7 inch touch screen as a monitor then you will need a few handy components like: Boards , Power supply , Cables , SD cards Also check, Best Value 3.5” Touch Display for Raspberry Pi Features: 7-inch high-resolution touchscreen display Compatible with Raspberry Pi 4, 3 Model A+, 3 Model B+, 3 Model B, 2 Model B, Model B+, Model A+ Capacitive touch technology supporting 10-finger touch Easy installation with only two connections Power is drawn from the GPIO port Includes ribbon cable and adapter board for power and signal conversion Expandable with accessories like stands, cases, and cables Applications: Monitoring in Surveillance System Video projection systems As monitors for computers Industrial Control System

7? Raspberry Pi LCD Touch Screen Display with Kit HDMI VGA Input Driver Board The 7 Inch LCD Touch Display With Driver Board Kit For Raspberry Pi allows users to build all-in-one, integrated projects like tablets, infotainment systems, and embedded projects! The 800x480 physical resolution (resolution range adjustable between 640 x 480 and 1600 x 1200) display is connected by an adapter board that handles power and signal conversion. Only two connections are required to the Pi: power from the GPIO port and a ribbon cable that connects to the DSI port found on all Raspberry Pi's. Touchscreen drivers with 10-finger touch support and an on-screen keyboard will be integrated into the latest Raspbian OS, allowing for full functionality without the use of a physical keyboard or mouse. Features: The function of plug and play support 5V supports DC voltage input, and can also be powered by USB or mobile power supply. Truly Interactive – the latest software drivers will support a virtual touchscreen ‘on-screen’ keyboard, so there is no need to plug in a keyboard and mouse. Make your own Internet of Things devices including a visual display. Simply connect your Raspberry Pi, develop a Python script to interact with the display, and you’re ready to create your own home automation devices with touchscreen capability. A range of educational software and programs available on the Raspberry Pi will be touch-enabled, making learning and programming easier on the Raspberry Pi. Control mode: multi-function OSD operation or potentiometric adjustment of brightness and color. Performance characteristics: adopt the mature scheme, clear display effect. 0 support the image flip up and down, and image 4:3/16:9 display format conversion. The scope of application: it is used in visual intercom, onboard computers, instruments, industrial control, medical equipment, portable display equipment, and other electronic fields.