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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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This sensor takes a continuous reading of any obstacle and settles it at output in TTL form within 2ms. The sensor provides easy interface of 3-wire with power, ground and the output voltage. The sensor works on 5V input Features -Very Small in size -Less influence on the color of reflected objects, reflectivity -Industrial grade quality -Can detect colour difference from certain range -TTL output high whenever sensor senses a obstacle -Detecting distance of 3cm to 80cm -External control circuit unnecessary -Low cost -Has inbuilt lenses assembly and potentiometer to set range of the module -Output indication LED
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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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Supports Full and Half-Duplex modes Automatic Programmable Retransmit on Collision Programmable Padding and CRC Generation Automatic Rejection of Erroneous Packets SPI Interface with Clock Speeds Up to 20 MHz The board 25MHZ crystal. The network interface board HR911105A. 5 V power supply pin. Stable performance. For Arduino SPI, AVR, PIC, LPC, STM32.