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LM2577 Step-Up 4-35V 2.5A DC-DC converter with display and voltmeter
The Step-Up converter built on the LM2577 chip is an efficient solution for supplying any circuit with a voltage lower than required. Thanks to its precise regulation, it allows the output voltage to be set from 4V to 35V. The LM2577 module is a better replacement for the XL6009 chip, offering higher performance and reliability. It is ideal for electronic design applications where voltage boost is required.
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LM2596 DC-DC Step-Down 3.2-35V 3A Buck Converter, 1.25-32V Output
The LM2596 DC-DC Step-Down is a reliable buck converter module. It accepts 3.2V - 35V input and provides smoothly adjustable 1.25V - 32V output. Maximum output current is 3A with a heatsink, and conversion efficiency reaches up to 92%. It is ideal for powering logic circuits, including Arduino, ESP32, and Raspberry Pi. The module is widely used in DIY projects, robotics, LED lighting systems, and stable power for sensitive audio circuits.
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LM2596 Step-Down Buck Converter 3A DC-DC with Display and Voltmeter
LM2596 Step-Down Buck Converter is a universal step-down voltage module with a built-in voltmeter. It allows precise adjustment of output voltage in the range of 3.2-35V at a maximum current of 3A. The device lets you conveniently monitor input and output voltage using an integrated switch.
The module works well for powering electronic circuits such as Arduino, Raspberry Pi, or ESP32. It has short-circuit protection, making it a safe choice for prototyping and for automation and robotics projects.
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LM35DZ precision temperature sensor 0-100°C - Arduino compatible
The LM35DZ temperature sensor is a precision thermometer with a supply of 4V to 30V, whose output voltage is proportional to the measured temperature in the range from 0°C to 100°C. Thanks to the voltage signal, the sensor is easy to operate and read values. Compatible with Arduino, it is ideal for a variety of electronic projects.
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LM39 soil moisture sensor with potentiometer and cables for Arduino
The LM39 sensor is a precise module for measuring soil moisture, compatible with popular microcontrollers. The device is powered from 3.3V to 5V and has two outputs: digital D0 and analog A0. A built-in potentiometer allows easy sensitivity adjustment.
The kit includes a measuring probe, a detector module, and the necessary cables. The product is ideal for automatic irrigation systems, greenhouse monitoring, and weather station projects. It offers straightforward integration and quick installation.
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LoRa 868MHz Antenna for Meshtastic Helium LoRaWAN 5.5dBi N 40cm TX868-BLG-40
Outdoor 868 MHz LoRa antenna with a length of 40 cm and 5.5 dBi gain is a reliable solution for signal transmission. Made of durable fiberglass, it offers resistance to harsh weather conditions-operating in temperatures from -40 to +80 degrees. It has a male N connector and ensures connectivity over 360°. The product is ideal for building Meshtastic nodes, Helium miners, and IoT systems based on LoRaWAN. It works well with ESP32, Arduino, and Raspberry Pi microcontrollers.
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Magnetic base 9 cm UC-1 with 3m SMA-F cable for Baofeng UV-5R
The UC-1 magnetic base with a diameter of 9 cm is a robust accessory equipped with a very strong neodymium magnet, which guarantees a stable attachment to metal surfaces such as car sheet metal. The underside of the magnet is padded with velvet to prevent scratches on the paintwork and an additional rubber pad increases protection. The product has a 3-metre cable terminated with an SMA-F connector , making it ideal for connecting the antenna to Baofeng UV-5R, UV-5R HT and Baofeng UV-82 radios.
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MAX44009 I2C GY-49 1.7-3.6V light intensity sensor module for Arduino
The MAX44009 is a state-of-the-art light sensor dedicated to mobile devices such as phones, tablets and laptops, where it automatically adjusts the brightness of the LCD display depending on the lighting conditions, increasing user comfort and reducing energy consumption. The sensor is distinguished by a very low current consumption of 0.65 µA and an advanced 22-bit A/D converter, which enables precise measurements in the range of 0.045 to 188,000 lux without the need for manual range setting. Communication is via the I2C bus, and an additional interrupt line allows a brightness threshold to be signalled when the power supply is in the 1.7V to 3.6V range.
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MAX4466 microphone amplifier with microphone 20-20kHz MAX4466
The MAX4466 microphone amplifier with an electret microphone delivers high-quality sound in the 20 Hz - 20 kHz range. The module features smooth gain adjustment from x25 to x125. It is fully compatible with popular platforms such as Arduino, ESP8266, ESP32, and Raspberry Pi.
The product is ideal for sound detection systems, music-reactive lighting, audio recorders, and noise level meters. It ensures a stable output signal and excellent sensitivity in any professional or hobby electronics project.
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MC-38 reed switch magnetic door and window open sensor for Sonoff Shelly
The magnetic MC-38 reed switch is a reliable solution for monitoring doors and windows in Smart Home systems. It is an NO (normally open) sensor that closes the circuit at a distance of 15-25 mm. The device works seamlessly with Sonoff, Shelly, Arduino, and Raspberry Pi modules.
The product is well suited to alarm installations, cabinet security, and home automation projects. Maximum operating voltage is 200 V DC, and current is 100 mA. The compact housing allows quick and easy mounting.
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MEGA ATmega2560 CH340 Module Compatible with Arduino + FREE USB Cable
The MEGA ATmega2560 CH340 module is a high-performance mainboard fully compatible with the Arduino ecosystem. At its heart is the reliable ATmega2560 microcontroller, offering 54 I/O ports and 16 analog inputs, enabling very advanced electronic projects. The device has a built-in CH340 interface, pre-installed bootloader, and 256 KB of Flash memory. The kit includes a dedicated USB cable for quick and trouble-free startup with the module.
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Meshtastic Heltec V3 868MHz kit + HOW-TO GUIDE CASE ACUMULATOR VIBRATOR
The Meshtastic Heltec V3 868MHz kit is a complete package for creating your own standalone IoT communication node. The kit includes Heltec's innovative WiFi LoRa 32 V3 module (868MHz), a dedicated 3D printed enclosure, a powerful Li-Po battery, and a vibration motor for notification signaling. Thanks to the included step-by-step guide with photos, even people with no experience in IoT projects will easily assemble and launch their kit.
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MH-Z19B NDIR high-resolution CO2 sensor on UART PWM
TheCO2 MH-Z19B high-resolution sensor allows precise and stable measurement of carbon dioxide concentration in the air, using the proven NDIR method (non-dispersive infrared sensor). This method ensures the reliability and accuracy of the measurements.
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Micro SD memory card reader module SPI interface for Arduino STM32 at 5V
Introducing the micro SD card reader module, which provides fast and stable communication through the use of the SPI interface. This compact module, with a 5V supply voltage, is ideal for integration into a wide range of electronic and microcontroller projects. It has a standard micro SD card slot, allowing easy connection and reading of data. With its compact dimensions,41x23 mm, this reader is an excellent choice for projects where space is limited and reliability is critical.
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Micro USB 5 Pin socket soldered to PCB + 2.54 mm pin header strip
Compact module with a soldered Micro USB 5 Pin PCB socket. The kit includes a 2.54 mm pin header strip for self-assembly, providing easy connection to breadboards. Ideal for powering electronic circuits, prototyping, and building custom adapters. Compatible with platforms such as Arduino and Raspberry Pi. Ready-made connections-no need to solder SMD parts-offer stability and significant time savings when building projects.
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Microcontroller module Digispark ATTINY85 Micro USB
The compact AtTiny85 microcontroller module is often used in projects where not many leads are required. The device has 8kb of Flash memory and 6 I/O ports. A MicroUSB connector is built onto the board. The module is compatible and programmable in the Arduino IDE environment. The supply voltage is 5V or from 7V to 35V, thanks to the 5 V / 500 mA regulator.
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MicroUSB-OTG Raspberry Pi Zero adapter
A cable to connect another device with aUSB-A plug to the Raspberry Pi Zero board. The length of the adapter is15cm.
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MIFARE 125 kHz UNIQUE RFID key card reader for USB + cable FREE
The JT308 is a state-of-the-art RFID card reader with a USB interface for easy and fast reading of NFC/RFID card data using a computer. Thanks to its USB power supply, it does not require an external power supply, making it a convenient and easy-to-use device. A reliable solution for anyone who needs a simple and efficient way to read RFID cards. With support for EM cards at 125 kHz and reading from up to 8 cm away, it is the ideal choice for offices, access control systems, libraries and many other applications.
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