1×4 Keymatrix Key Matrix Membrane Switch Control Panel Keypad Keyboard in Pakistan

DFPlayer Mini MP3 Player Module is suitable for Arduino UNO Music Audio Voice Board.DFPlayer Mini is a compact and inexpensive MP3 module that can be connected directly to the speaker. Module with battery, speaker, the keyboard can be used alone, or through serial port control, such as the Arduino UNO or any microcontroller with a serial port module. The module itself seamlessly integrated MP3, WAV, WMA hardware decoding. While the software supports TF card drivers to support FAT16, FAT32 file systems. It can be done through simple serial commands specified music player, as well as how to play music and other functions, without the heavy
the underlying operation, easy to use, stable, and reliable.

R307 R-307 R 307 fingerprint Sensor module For Arduino is a fingerprint sensor with a TTL UART interface. Professional optical technology, precise module manufacturing technic. The good image processing capabilities of Finger Print Reader can successfully capture an image up to resolution 500 dpi Finger detection function. The user can store the fingerprint data in the module and can configure it in 1:1 or 1: N mode for identifying the person. The FP module can directly interface with a 3.3 or 5v Microcontroller. A level converter (like MAX232) is required for interfacing with a PC serial port. R307 Fingerprint Scanner consists of a high-speed DSP processor, high-performance fingerprint alignment algorithm, high-capacity FLASH chips, and other hardware and software composition, stable performance, simple structure, with fingerprint entry, image processing, fingerprint matching, search and template storage, and other functions. The optical fingerprint detection device can be embedded into a variety of end products, such as access control, attendance, safety deposit box, car door locks.