Description: ID card reader is a plug and play RFID reader with 125kHz frequency. Its reading speed is very high
The MF522-AN module is the original Philips MFRC522 chip design circuit card reader, easy to use, low cost, and applies to the
PN532 NFC Precise RFID IC Card Reader Module 13.56MHz for Arduino Raspberry PI Overview PN532 NFC module, as its name
Proximity RFID ID Card Door Access Control Keypad
Access Control Keypad
The 4040 is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve fully buffered outputs (Q0 to Q11). The counter advances on the HIGH-to-LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs LOW, independent of CP. Each counter stage is a static toggle flip-flop.
4028 is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. 4028 is a BCD to DECIMAL or BINARY to OCTAL decoder consisting of buffering on all 4 inputs, decoding logic gates, and 10 output buffers.
The 4022 is a 4-stage divide-by-8 Johnson counter with 8 decoded outputs and a carry-out bit.
The 4011 is a quad 2-input NAND gate. The outputs are fully buffered for the highest noise immunity and pattern insensitivity to output impedance. It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input
LED Light Bar Green
7 segment display(2x1)
temperature and humidity sensor
This is a digital temperature and humidity sensor module that works with all of the Arduino micro-controllers. Because it is
4-pin temperature sensor
Pressure & Temperature Sensor
3D printer stepper motor driver CNC shield V4 needs to work with Nano board. It can be used as driver