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Any 7 voice commands in the library could be imported into recognizer
74HC125N (Quad 3-State Buffer)
a robot can be designed to be a master connected to a slave Bluetooth module or as a slave board to make a wireless connection with a PC and smart phones
USB RFID Card Reader
the higher the concentration
Real Time Clock (DS1307) switch Any 7 voice commands inIntroduction: The module based on DS1307, The DS1307 serial real time clock (RTC) is a low power, full binary coded decimal (BCD) clock calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an IC, bidirectional bus. The clock calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for
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