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For medical diagnostics, the study of electrical and magnetic heart activity is essential. His work is associated with electrical effects that are relatively easy to measure. Magnetic induction from the working heart is much more difficult to measure - a more precise, but very expensive and technically complicated method. One of the new concepts is the use of digital signal analysis techniques in ECG diagnoses. We present a device investigating the relationship between the frequency spectrum of the ECG signal and the functioning of the heart. After a slight modification of the software, the system can also be used in an amateur electronic laboratory as an oscilloscope or spectrum analyzer. The only limitation is the sampling frequency resulting from the operating speed of the analog-to-digital converter included in the processor used in the system.
The device is particularly recommended to electronics-experimenters
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The Finder 66.82.8.230.0000 is a high current DPDT relay, operating on a coil voltage of 230V AC, capable of switching currents up to 30A at 250VAC on each of its two contacts. Its durable construction makes it ideal for industrial applications, while its strong leads and optional adapters facilitate installation and integration into a variety of systems.
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The Finder 62.82.8.230.0300 electromagnetic relay is a robust component for industrial electrical and automation applications, offering high reliability and high current capacity. Equipped with a 230V AC coil, it allows switching currents up to 16A at a voltage of 250VAC on each of the two independent contacts, making it ideal for controlling devices with high power consumption.
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The Finder 40.61.9.005.0000 Electromagnetic Relay is a robust SPDT component with a 5V DC coil, designed to switch currents up to 16A at 250VAC, ideal for control and automation systems. Its high load capacity and durable construction make it a reliable choice for industrial applications requiring heavy load switching.
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Industrial depth camera with ToF sensor, designed for precise detection up to 3 meters, ideal for applications such as pick-and-place, quality control or industrial automation. With IP65/IP67 sealing, active IR, PoE connectivity and 4 TOPS computing power (including 1.4 TOPS on AI), it offers reliable operation even in harsh environments. It supports CV and AI algorithms, remote control, standalone operation and multiple network protocols, making it a versatile tool for industry and robotics. Luxonis OAK-D SR PoE
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Uni-T UT387D is a compact detector for detecting metals, live wires and wood in walls, floors and ceilings. It allows precise location of objects at a depth of up to 80 mm (metals), 50 mm (wires) and 20 mm (wood), and its ergonomic housing, LCD display and automatic calibration ensure comfortable and accurate work.
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The TPS5401DGQ offers an energy-efficient and reliable solution for projects requiring high-efficiency voltage conversion and stable operation across a wide input voltage and temperature range. Thanks to its compact design, low quiescent current, and high switching frequency, the device is used in industrial applications, automation systems, portable devices, and advanced power supply projects.
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The Raspberry Pi SSD 256GB is a fast and reliable storage solution, ideal for demanding Raspberry Pi 5 applications, ensuring efficient handling of I/O-intensive tasks
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The Raspberry Pi SSD 512GB is a reliable solution for the most demanding projects, delivering the highest I/O performance on Raspberry Pi 5 devices
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Kit for measuring muscle activity using electromyography (EMG). Contains everything you need from the MyoWare 2.0 ecosystem to test basic configurations in your applications. SparkFun KIT-25332
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An advanced wireless communication module based on the Bluetooth 5.2 (Bluetooth® Low Energy, BLE) stack, which is designed using the powerful Nordic nRF5340 SoC. It provides GPIO, SPI, UART, TWI, I2C, PDM, PWM, ADC, NFC and USB interfaces for connecting peripherals and sensors. SparkFun WRL-25465
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Advanced wireless communication module, based on the Bluetooth 5.4 stack (Bluetooth® Low Energy, BLE), which was designed using the efficient Nordic NRF52805 SOC system. The module offers support for the UART interface, available only in peripheral mode, which allows for effective operation as a data bridge (Data Bridge). Sparkfun WRL-25467
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Universal, multifunctional USB computer adapter equipped with a four-channel oscilloscope, offering 8-bit resolution and 350 MHz bandwidth with a sampling rate of up to 1.5 GS/s. Additionally equipped with 34 digital channels, a built-in power supply, digital outputs, a single-channel generator, and external triggers. It is operated using free WaveForms software or custom applications in C, C++, C#, Visual Basic and Python, as well as using LabVIEW and MATLAB. Digilent 411-002
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Universal, multifunctional USB computer adapter equipped with a four-channel oscilloscope, offering 8-bit resolution and 500 MHz bandwidth with a sampling rate of up to 2 GS/s. Additionally equipped with 34 digital channels, a built-in power supply, digital outputs, a single-channel generator, and external triggers. It is operated using free WaveForms software or custom applications in C, C++, C#, Visual Basic and Python, as well as using LabVIEW and MATLAB. Digilent 411-003
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Programmable linear laboratory power supply with a 0-30 V and 0-5 A range, equipped with a 2.8" TFT-LCD screen and real-time voltage waveform display. It supports remote control (SCPI, LabView), save/recall settings, 4-wire measurement, and quiet cooling with a temperature-controlled fan. Thanks to its low noise level, compact housing, and safety features, it is ideal for service, R&D, and precise power supply of electronic systems. Siglent SPD1305X
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Compact mini computer with quad-core Rockchip RK3328 processor and 1GB DDR4 RAM, ideal for network applications and IoT projects. Equipped with 32GB of built-in eMMC memory and support for microSD cards up to 128GB, it provides flexible data storage. The device supports 1Gbps Ethernet, two USB 2.0 Host ports, two USB-C ports and an optional Wi-Fi module, making it a versatile solution for DIY projects, routers and servers. FriendlyELEC NanoPi R2S Plus
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Ethernet cable featuring a robust M12X connector on one end and a standard RJ45 connector on the other, providing flexibility for connecting to Series 2 PoE cameras. With an IP67 protection rating and compliance with IEC 61076-2-109, it is suitable for demanding applications
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