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The JOY-iT R301T fingerprint sensor module is capable of image collection and algorithm calculation due to this integrated chip. Another remarkable function of the sensor is, that it can recognize the fingerprint in different conditions, for example humidity, light texture or changes of the skin. This offers a very wide range of possible applications to secure locks and doors among others. The chip can send data via UART, TTL serial and USB to the connected controller. Specifications Model JP2000 sensor Chip 32 Bit ARM Cortex-M3 Chip storage 96 kB RAM, 1 MB Flash Power supply 4.2-6.0 V Working current Typical: 40 mAPeak: 50 mA Logic level 3,3/5 V TTL Logic Fingerprint storage capacity 3000 Prints Matching mode 1:N Identification1:1 Verification Adjustable security level 1 - 5 levels(default security level: 3) False acceptance rate < 0.001%(on security level 3) False acceptance rate < 0.1%(on security level 3) Response time Pre-treatment: < 0.45 sMatch: < 1.5 s Baud rate support 9600 - 921600 UART communication No parity, Stop Bit: 1 Dimensions 42 x 19 x 8 mm Included 1x Fingerprint sensor COM-FP-R301T 1x Cable Downloads Datasheet Manual

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Wide Range Power Supply for Raspberry Pi With the PiEnergy Mini, you can operate your Raspberry Pi with a voltage of 6 to 36 V DC. You can use the button integrated on the board to both power up and power down your Raspberry Pi. Communication with the Raspberry Pi is via GPIO4, but this connection can also be cut by removing a resistor to use the pin freely. Thanks to the ultra-flat design, it can also be used in many housings. The pin header is included and not soldered on to keep the design even flatter. Specifications Input voltage 6 to 36 V DC Output voltage 5.1 V Output current Up to 3 A (active ventilation recommended for additionally connected loads) Cable cross-section at the power input 0.2-0.75 mm² Interface to the Raspberry Pi GPIO4 Microcontroller ATtiny5 Further connections 5 V fan connector (2-pin/2.54 mm)Solder pads for external on/off switch Compatible with Raspberry Pi 3, 4, 5 Dimensions 23 x 56 x 11 mm Included Board with mounted heat sink Pin header (2x5) Spacer, screw, nut Downloads Datasheet (English) Datasheet (Italiano) Manual (English) Manual (Italiano)

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The Motorino board is an extension-board to control and use up to 16 PWM-controlled 5V-Servo-motors. The included clock generator ensures a very precise PWM signal and a very precise positioning. The board has 2 inputs for voltage from 4.8 V to 6 V which can be used for up to 11 A. With this input, a perfect power supply is always guaranteed and even bigger projects are no problem. The supply runs directly over the Motorino which provides a connection for voltage, ground and control. With the build in capacitor, the voltage is buffered which prevents a sudden voltage-drop at a high load. But there is also the possibility to connect another capacitor. The control and the programing can be done, as usual, with the Arduino. Manuals and code examples allows a quick introduction for beginners. Specifications Special features 16 Channels, own clock generator Input 1 Coaxial power connector 5.5 / 2.1 mm, 4.8-6 V / 5 A max Input 2 Screw-terminal, 4.8-6 V / 6 A max Communication 16 x PWM Compatible with Arduino Uno, Mega and may more microcontroller with Arduino compatible pinout Dimensions 69 x 24 x 56 mm Included Board, Manual, Retail package

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The MotoPi is an extension-board to control and use up to 16 PWM-controlled 5 V servo motors. The board can be additional powered by a voltage between 4.8 V and 6 V so a perfect supply is always guaranteed and even larger projects can be powered. With the additional power supply and the integrated Analog-Digital-Converter, new possibilities can be reached. An additional power supply per motor is not required anymore because all connections (Voltage, Ground, Control) are directly connected to the board. The control and the programing can be directly done, as usual, on the Raspberry Pi. Specifications Special features 16 Channels, own clock generator, Inkl. Analog Digital Converter Input 1 Coaxial power connector 5.5 / 2.1 mm, 5 V / 6 A max Input 2 Screw terminal, 4.8-6 V / 6 A max Compatible with Raspberry Pi A+, B+, 2B, 3B Dimensions 65 x 56 x 24 mm Scope of supply Board, manual, fixing material

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This multimedia case for all Raspberry Pi 4 models is characterized by high functionality, modern design and a sumptuous equipment: Integrated IR receiver, controllable with almost all IR remote controls Controllable LED lighting Switching on/off, controlling additional functions of the Raspberry Pi Active, quiet cooling Toolless, magnetic assembly All connections of the Raspberry Pi are on the backside GPIO port is accessible via separate lid Perfect as a multimedia platform in the living room, desktop device or for the use in digital signage. Specifications Material Acryl Color Black Compatible to Raspberry Pi 4 Power supply 5 VDC (USB-C) Microcontroller STM32F030F4P Infrared receiver TSOP4838 LEDs 4x WS2812Mini Led out connections 1x USB-C, 1x Aux, 2x microHDMIFrom Raspberry Pi: 2x USB-A 3.0, 2x USB-A 2.0, 1x RJ45 Weight 280 g Dimensions 113 x 100 x 38 mm Scope of delivery Multimedia case, adapter board, control board, Aux adapter cable Downloads Datasheet (177.9 KB) Manual (3.5 MB) Expert Guide (6.5 MB) Firmware v1.0.9-beta (11.2 KB) Addons for LibreElec 9 (2.6 MB) Code Examples Addon - Multimedia Case Configuration Addon - LED Configuration Addon - IR Control Configuration Prepared LibreElec Image Prepared LibreElec Image 10.BETA GitHub

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The JOY-iT Armor Case BLOCK is a robust aluminum enclosure designed specifically for the Raspberry Pi 5. It offers excellent protection against heat and physical shocks, making it suitable for challenging environments. Its compact design ensures that it doesn't require additional space, allowing for seamless integration into existing projects. The case includes a large heatsink to enhance cooling efficiency. Installation is straightforward, with four screws (included) securing the case to the Raspberry Pi. Specifications Material CNC milled aluminum alloy Cooling performance Idle: ~39°CFull load: ~75°C Special features Large heat sink, protection against shocks and heat with the same volume as without housing Dimensions (top side) 69 x 56 x 15,5 mm Dimensions (bottom side) 87 x 56 x 7,5 mm

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Maker Line is a line sensor with 5 x IR sensors array that is able to track line from 13 mm to 30 mm width. The sensor calibration is also simplified. There is no need to adjust the potentiometer for each IR sensor. You just have to press the calibrate button for 2 seconds to enter calibration mode. Afterwards you need to sweep the sensors array across the line, press the button again and you are good to go. The calibration data is saved in EEPROM and it will stay intact even if the sensor has been powered off. Thus, calibration only needs to be carried out once unless the sensor height, line color or background color has changed. Maker Line also supports dual outputs: 5 x digital outputs for the state of each sensor independently, which is similar to conventional IR sensor, but you get the benefit of easy calibration, and also one analog output, where its voltage represents the line position. Analog output also offers higher resolution compared to individual digital outputs. This is especially useful when high accuracy is required while building a line following robot with PID control. Features Operating Voltage: DC 3.3 V and 5 V compatible (with reverse polarity protection) Recommended Line Width: 13 mm to 30 mm Selectable line color (light or dark) Sensing Distance (Height): 4 mm to 40 mm (Vcc = 5 V, Black line on white surface) Sensor Refresh Rate: 200 Hz Easy calibration process Dual Output Types: 5 x digital outputs represent each IR sensor state, 1 x analog output represents line position. Support wide range of controllers such as Arduino, Raspberry Pi etc. Downloads Datasheet Tutorial: Building A Low-Cost Line Following Robot  

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Developing CoAP applications for Thread networks with Zephyr This book will guide you through the operation of Thread, the setup of a Thread network, and the creation of your own Zephyr-based OpenThread applications to use it. You’ll acquire knowledge on: The capture of network packets on Thread networks using Wireshark and the nRF Sniffer for 802.15.4. Network simulation with the OpenThread Network Simulator. Connecting a Thread network to a non-Thread network using a Thread Border Router. The basics of Thread networking, including device roles and types, as well as the diverse types of unicast and multicast IPv6 addresses used in a Thread network. The mechanisms behind network discovery, DNS queries, NAT64, and multicast addresses. The process of joining a Thread network using network commissioning. CoAP servers and clients and their OpenThread API. Service registration and discovery. Securing CoAP messages with DTLS, using a pre-shared key or X.509 certificates. Investigating and optimizing a Thread device’s power consumption. Once you‘ve set up a Thread network with some devices and tried connecting and disconnecting them, you’ll have gained a good insight into the functionality of a Thread network, including its self-healing capabilities. After you’ve experimented with all code examples in this book, you’ll also have gained useful programming experience using the OpenThread API and CoAP.

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40+ Projects using Arduino, Raspberry Pi and ESP32 This book is about developing projects using the sensor-modules with Arduino Uno, Raspberry Pi and ESP32 microcontroller development systems. More than 40 different sensors types are used in various projects in the book. The book explains in simple terms and with tested and fully working example projects, how to use the sensors in your project. The projects provided in the book include the following: Changing LED brightness RGB LEDs Creating rainbow colours Magic wand Silent door alarm Dark sensor with relay Secret key Magic light cup Decoding commercial IR handsets Controlling TV channels with IT sensors Target shooting detector Shock time duration measurement Ultrasonic reverse parking Toggle lights by clapping hands Playing melody Measuring magnetic field strength Joystick musical instrument Line tracking Displaying temperature Temperature ON/OFF control Mobile phone-based Wi-Fi projects Mobile phone-based Bluetooth projects Sending data to the Cloud The projects have been organized with increasing levels of difficulty. Readers are encouraged to tackle the projects in the order given. A specially prepared sensor kit is available from Elektor. With the help of this hardware, it should be easy and fun to build the projects in this book.

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Build your textbook weather station or conduct environmental research together with the whole world. With many practical projects for Arduino, Raspberry Pi, NodeMCU, ESP32, and other development boards. Weather stations have enjoyed great popularity for decades. Every current and even every long discontinued electronics magazine has regularly featured articles on building your own weather station. Over the years, they have become increasingly sophisticated and can now be fully integrated into an automated home — although this often requires loyalty to an (expensive) brand manufacturer across all components. With your own weather and environmental data, you can keep up and measure things that no commercial station can. It’s also fun: expand your knowledge of electronics, current microcontroller development boards and programming languages in a fun and meaningful way. For less than 10 euros you can get started and record your first environmental data — with time and growing interest, you will continue to expand your system. In this Edition Which Microcontroller Fits My Project? The Right Development Environment Tracking Wind and Weather Weather Display with OpenWeatherMap and Vacuum Fluorescent Display Volatile Organic Compounds in the Air We Breathe Working with MQ Sensors: Measuring Carbon Monoxide — Odorless but Toxic CO2 Traffic Light with ThingSpeak IoT Connection An Automatic Plant Watering System Good Indoor Climate: Temperature and Humidity are Important criteria Classy Thermometer with Vintage Tube Technology Nostalgic Weather House for the Whole Family Measuring Air Pressure and Temperature Accurately Sunburn Warning Device DIY Sensor for Sunshine Duration Simple Smartphone Says: Fog or Clear View? Identifying Earthquakes Liquid Level Measurement for Vessels and Reservoirs Water pH Value Measurement Detecting Radioactive Radiation GPS: Sensor Location Service Across the Globe Saving and Timestamping Log Files on SD Cards LoRaWAN, The Things Network, and ThingSpeak Operating a LoRaWAN Gateway for TTN Defying "Wind and Weather" Mega Display with Weather Forecasz

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Developing CoAP applications for Thread networks with Zephyr This book will guide you through the operation of Thread, the setup of a Thread network, and the creation of your own Zephyr-based OpenThread applications to use it. You’ll acquire knowledge on: The capture of network packets on Thread networks using Wireshark and the nRF Sniffer for 802.15.4. Network simulation with the OpenThread Network Simulator. Connecting a Thread network to a non-Thread network using a Thread Border Router. The basics of Thread networking, including device roles and types, as well as the diverse types of unicast and multicast IPv6 addresses used in a Thread network. The mechanisms behind network discovery, DNS queries, NAT64, and multicast addresses. The process of joining a Thread network using network commissioning. CoAP servers and clients and their OpenThread API. Service registration and discovery. Securing CoAP messages with DTLS, using a pre-shared key or X.509 certificates. Investigating and optimizing a Thread device’s power consumption. Once you‘ve set up a Thread network with some devices and tried connecting and disconnecting them, you’ll have gained a good insight into the functionality of a Thread network, including its self-healing capabilities. After you’ve experimented with all code examples in this book, you’ll also have gained useful programming experience using the OpenThread API and CoAP.

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