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I'm interested in this fieldm, using Radar for detecting the obstacles. But I don't know how much does it cost? Is it expensive?
Ps: I'm gonna use: 76GHz Millimeter Wave Automobile Radar using Single Chip MMIC
The problem is because of my typing habit, I type double quotes "" first and then I type the phone number between them....for more explicit, I must type each letter in turn left to right until end of a ATcommand.......that must be like that......
Sometimes I can make a call successfully, sometimes It doesn't response.
---------- Post added at 13:35 ---------- Previous post was at 13:31 ----------
of course, I must use a working sim card
I'm a student under Automation control Faculty;therefore, some telecommunications knowledges, I don't know actually. Can you give me some more concrete? thanks
[SIM900 Problem] I can't send a sms message from SIM900
I use usb-uart FT232 to communicate with SIM900......i tried to send a sms, but i didn't work......when I type a command: AT+CMGS="+841224470861"......Return ...>error. I don't know this matter.....who knows, please help me!!!! thks
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