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And of course it is also compatible with all other controller boards
RFID USB Reader (125khz ) can read RFID card serial number and output to your computer according to specified format
Low voltage and power consumption
LM317 can be used as a precision current regulator
Drive channels : Dual ( 2 way)
74HC165 (8-Bit Parallel-in/Serial out Shift Register) Stepper Driver Shield And of course it isIntroduction : 74HC165 is an 8 bit serial or parallel in serial out shift registers. The devicefeatures a serial data input (DS), eight parallel data inputs (D0 to D7) and two complementaryserial outputs (Q7 and Q7). When the parallel load input (PL) is LOW the data from D0 to D7 isloaded into the shift register asynchronously. When PL is HIGH data enters the register serially atDS. When the clock enable input (CE) is LOW data is shifted on the LOW to