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DHT11 temperature and humidity sensor with wires, module for Arduino
The compact DHT11 sensor is a module for precise measurement of temperature and humidity, compatible with Arduino, Raspberry Pi, and ESP32. The device measures temperature in the range of 0-50 °C and humidity 20-90% RH. Thanks to 3.3V-5V power supply and low current draw of 0.2 mA, it is ideal for energy-efficient home automation systems as well as control and measurement equipment. Its small size and included wires make integration easy in any project.
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DigiSpark ATTINY85 USB microcontroller module
A miniature module based on the AtTiny85 microcontroller fully compatible with the Arduino IDE. It is equipped with 6 I/O ports of which 3 can act as PWM outputs. The supply voltage is 5V from the USB port or 7-12V DC from the VIN port. The circuit is clocked with a 8 MHz clock signal. The board has a built-in voltage regulator that allows power supply from an external source. The module has a bootloader preloaded, which implements USB port support without the need for additional converters.
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DIGITAL BATTERY TESTER RECHARGEABLE BATTERIES VOLTMETER WITH LCD 9V AA AAA C D
A compact digital battery tester with a clear LCD display is a universal tool for precisely checking cell condition. The device supports popular formats, including AA, AAA, C, D, 9V and button cells. The tester requires no separate power supply, as it draws power directly from the cell under test. It is ideal for checking power in household devices, sorting used batteries and for workshop tasks. This practical voltmeter saves time and helps prevent throwing away good batteries.
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Digital tachometer for measuring rotational speed + blue LED CF5135C-Z
Digital LED tachometer CF5135C-Z is a precision device for measuring rotational speed in the range 10-9999 RPM with 0.1% accuracy. It features a clear blue display and an NPN Hall sensor that works with a magnet. Powered by DC 8-24V. Ideal for motor diagnostics, monitoring industrial fans, and controlling spindles in CNC machine tools. This reliable measuring tool is also used in agricultural machinery and transport systems.
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Digital tachometer for rotational speed measurement + green LED CF5135C-Z
Digital tachometer CF5135C-Z with a green LED display is a precise device for measuring rotational speed in the range 10-9999 RPM. It uses an NPN Hall effect sensor working with a magnet. The module is powered by DC 8-24V and offers measurement accuracy of 0.1%.
It is ideal for motor diagnostics, monitoring fans, drive shafts, and CNC spindles. An excellent choice for automation systems and projects using Arduino or Raspberry Pi.
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Digital tachometer for speed + red LED CF5135C-Z
Digital tachometer for measuring rotational speed, displaying the speed on an LED screen in revolutions per minute (RPM). The device uses an NPN Hall sensor working with a magnet mounted on a rotating component. Ideal for measuring the speed of shafts, fans and other rotating components.
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Digital voltmeter 0-100V LED meter with red 0.28" display 5-24V
Presenting a high quality 0.28" LED voltmeter in red, ideal for accurate voltage measurement in various electronic applications. With a wide supply voltage range from 2.5V to 30V, it is extremely versatile and compatible with many systems.
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Dimmer for LED strips 12-24V 8A Manual On/Off smooth PWM control
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Display Blue OLED 1.3 I2C SH1106 ARDUINO
The Blue OLED 1.3 I2C SSH1106 display is a state-of-the-art electronic component compatible with Arduino, Raspberry Pi and other systems. It offers a supply voltage in the range of 3-5V and uses the SH1106 driver. It is a 1.3" OLED display with a resolution of 128x64 pixels, presenting an image in blue. It supports communication via I2C, 3-Wire SPI and 4-Wire SPI for connection versatility. Its dimensions are 40.5mm x 37.5mm x 4mm, making it compact and easy to integrate into various projects. In addition, it is equipped with D/C and RST pins for easy programming and use. Recommended for building interactive projects where a clear and aesthetically pleasing display of information is required.
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Display OLED LCD blue 128x32 0,91' I2C
The blue OLED display is 0.91'' diagonal and has a resolution of 128x32. It is based on a SSD 1306 controller. It communicates via an I2C interface and is powered by 3.3V or 5V.
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DRV8825 stepper motor stepstick controller for CNC 3D printer + heat sink
The DRV8825 stepper motor controller is one of the most advanced devices for controlling motors in 3D printers. It offers features such as reduced motor noise and increased printing precision. It allows the division of one motor step into as many as 32 intermediate steps, which significantly improves the quality of detailing. The controller is compatible with RAMPS 1.4 and Mega2560 electronic control boards, making it ideal for CNC machines, 3D printers and a variety of robotic systems.
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DS18B20 1-Wire TO92 Dallas temperature sensor resolution up to 12 bits
The DS18B20 in a TO92 housing is an advanced digital temperature sensor, compatible with voltages 3.3V and 5V. Equipped with a built-in ADC converter, it provides precise temperature readings with an accuracy of 12 bits, which translates to a resolution of 0.0625°C and a measurement accuracy of ±0.5°C.
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DS18B20 temperature sensor waterproof metal probe - 2m cable
Waterproof DS18B20 temperature sensor with a metal probe and 2m cable. Delivers precise measurement from -55°C to +125°C with accuracy up to 0.5°C. Uses the 1-wire interface, allowing multiple sensors on one bus. Powered from 3.3V - 5V, it is compatible with popular microcontrollers. Ideal for aquariums, weather stations, smart home systems, and industrial automation.
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DS3231 module, real-time RTC clock, AT23C32 memory, 32 kHz, for Arduino
A precision DS3231 RTC clock module with built-in AT23C32 memory and an integrated crystal. The device is versatile and works excellently with Arduino, ESP32, and Raspberry Pi. It provides accurate time readings-seconds, minutes, hours, and the full date. Communication is via the popular I2C bus, and the supply voltage is from 3V to 5.5V.
The module is ideal for smart home systems, weather stations, data loggers, and electronic clocks. When powered at 5V, a suitable battery must be used.
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DT830D digital current meter
The DT830D universal digital meter is a practical device for domestic use. It allows you to check the voltage of integrated circuits, charging levels in cars and motorbikes. Allows you to locate faulty wires. The multimeter measures DC voltage up to 1000V, AC voltage up to 750V, DC current up to 10A and resistance up to 2MΩ. Powered by a 9V battery.
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Durable 1x 18650 1S 3.7V cell holder with 22AWG wires + contact strips
A durable holder for one 18650 cell at 3.7V is a reliable solution for powering electronic circuits. Made of rigid plastic, it features built-in contact strips and sturdy 22AWG wires for a firm, stable connection. It works well in embedded systems and DIY projects-including powering Arduino, ESP8266, ESP32, and Raspberry Pi modules. The thoughtful design allows quick installation and safe removal of batteries.
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Durable 2x 18650 2S 7.2V series cell holder with wires and contact tabs
High-quality 2x 18650 cell holder in 2S series configuration with stable 7.2V output. Made of durable plastic, it includes integrated wires and springy mounting tabs for secure battery retention.
It works well as a power supply for Arduino, Raspberry Pi, and ESP32 modules. A reliable choice for DIY projects, robotics, portable measuring devices, and emergency power systems.
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