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SIM800L GPRS GSM module quad-band TTL serial port – pins as ESP module
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Prototype PCB hole distance hole board (7.5*10)cm
Serial Cable DB9 RS232 Femal-Female Cross 1.5Meter
pin header female 8pin 2.54mm
Adapter Board For NRF24L01 3.3v
pin header female 5pin 2.54mm 








