M590E GSM GPRS Frequency Module Board SMS Message Diy kits M590 Standard AT Instruction Set CPU MCU For TTL Test 5V 1A
$3.69
This Module is a standard AT instruction setSupport at 900M-1800M, GSM frequency bandCan be connected: MCU for TTLIf you need datashee, please leave the mailbox, I will send mail to you.If you test after ,no TCP connection,Please try to send:AT+XISP=0Voltage:5vVurrent:1AFrequency:900/1800Size50mm*50mm
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