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Description This is a great little RFID Reader Module from Innovations, simillar to the ID models (the difference being no silicone protection on the back). If you need an inexpensive way to get started with RFID, this is a great little module. Just power the module, and it will read any RFID card within range. 1. Reading distance : 100mm 2. Frequncy:125Khz 3. Card format : EM4100 or compatible chip It will output the cards ID in a serial string, which can easily be read by any microcontroller. The spacing on the pins is 2.54 mm, which means the module will directly fit on a breadboard.Note: This Module will not work the Atmega32u2 Developement Board. Technical Specifications 1. 5V supply 2. 125kHz read frequency 3. EM4001 64-bit RFID tag compatible 4. 9600bps TTL and RS232 output 5. Magnetic stripe emulation output 6. 100mm read range 7. Interface: Wiegand 26 , RS232 8. Output: RS232 and WG26 9. Range of power supply: 4.6V to 5.4V 10.Encoding: Manchester 64-bit,modulus 64
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HC-06 RF Wireless Bluetooth Transceiver Slave Module RS232 / TTL to UART converter and adapter. This module is an Upgrade from the older HC-05 and has better stable Firmware. Features: Bluetooth Serial Transceiver Module with backboard. This module includes key interface and state interface compared with Smart Bluetooth Module Baseboard. The Bluetooth Module Baseboard can be compatible with slave mode. Works for Bluetooth TTL transceiver module which allows your target device to both senders receive the TTL data. The key interface on the baseboard is the master mode button and can be controlled by high level from external MCU, and then this module will search again automatically. Built in antenna Bluetooth version: V2.0 EDR
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Sensitive material of MQ-9 gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature (heated by 1.5V). The sensor’s conductivity is more higher along with the gas concentration rising. When high temperature (heated by 5.0V), it detects Methane, Propane etc combustible gas and cleans the other gases adsorbed under low temperature. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration. MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor could be used to detect different gases contains CO and combustible gases, it is with low cost and suitable for different application.
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Description: Here we have a Joystick shield that sits atop your Arduino and turns it into a simple controller. 7 momentary push buttons (4 big buttons, 2 small buttons, and a joystick select button) and a two-axis thumb joystick gives your Arduino functionality on the level of the old Nintendo controllers.
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This development board uses the ATmega48 microcontroller for convenient interfacing with the NRF24L01 module. It also features an I2C communication interface that can be used for communication with other microcontrollers such as Arduino or for connecting other peripherals directly to this board. This module comes programmed with an I2C to SPI bridge which implements a convenient RF communication solution. With this module, users do not need to understand the NRF24L01 communication protocol which makes the building of NRF24L01 wireless application easier. This improves the efficiency of the project development process. This module is perfect for robots, remote controls, and remote sensing applications. Specifications Operating Voltage: 5 V (No short-circuit protection) Transfer Rate: 50 Bytes/second I2C/TWI Address: 0x47 (decimal 35) NRF24L01 Address: 0x34, 0x43, 0x10, 0x01, (from low to high)
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Feature: Internal with logic level conversion circuit. No need external 5V level to turn into a 3.3V level The power input port with anti-anti-circuit. To avoid accidental power plug reversed, leading to the module burned HM-10, HM-11 series Bluetooth module using TI CC2540 chip, configuration 256Kb space, support AT commands, you can change the role (master and slave mode) and the baud rate, the device name, Pairing password and other parameters, convenient and flexible.
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Sale!
- All primary ports (including micro-SD) accessible
- Anti-slip feet keeps your Raspberry Pi 4 stable
- Removable side plate allows access to those wonderful GPIO pins
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Dynamo Hand Crank Charger E-874 Maximum Output Voltage: DC5.5V/Maximum Output Current: 600mA/Interface type: USB It is better than a solar charger because you can use it even without the heat of the sun It is great for emergency situations, for trekking, fishing, camping, mountain climbing, and even just for everyday use
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Description: Description: Description: Description: RHT02 output calibrated digital signal. It apply exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing elements is connected with 8-bit single-chip computer. Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of program in OTP memory, when the sensor is detecting, it will cite coefficient from memory. Small size & low consumption & long transmission distance(100m) enable RHT02 to be suited in all kinds of harsh application occasions.
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'-U-BLOX NEO-6M module with high-gain active antenna; -TTL level, compatible with 3V/5V systems; -Baud rate: 9600kbps (default), adjustable by u-center; -Provided IPX interface for different active antennas; -Provided rechargeable battery backup, enabling to save ephemeris data on power down; -Support hot start.