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Interface Protocol: Standard UART serial interface TTL level）
home automation
Working voltage: 3
of Gates:4
DS1302 chip is also commonly used as DS1302 RTC module which comes with a 32 kHz crystal and on-board battery backup all in a small SIP module that is compatible with a breadboard
NFC Wristband (Silicon Bracelet - NTAG215) (Φ) 65 mm 74 Interface Protocol: Standard UART serialNFC NTAG215 silicone bracelet wristband is suited for NFC access control applications such as conferences, sports club, member management, payment tracking and also waterproof applications. It is 13. 56 MHZ frequency NFC , lightweight and waterproof. Chip: NTAG215 (compatible with all NFC enabled smart phones) Frequency: 13. 56 MHz (High Frequency) Reading time: 1 2 ms Storage capacity: 144 bytes Read and write times:> 100,000 times Reading distance: