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Part Number: tm4c123gh6pm
I have a requirement where i need to send messages from one microcontroller to another within 100kms radius. Is it possible to achieve this using any tm4c development board? If not possible what are my best options and other development boards to achieve this?
Would it not (perhaps) ease the job of your audience if you included "any/all" Power, Cost, Antenna, Data Rate & Physical Size specifications? 100Km - directly from "board to board" - is not the intent of (any) low power, wireless device...
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Best Regards,Bob Crosby
In reply to Bob Crosby:
In reply to cb1_mobile:
In reply to Charles Tsai:
Charles TsaiWhat about pairing the TM4C with your phone via bluetooth and use your phone as a gateway to send the data
This may work - yet has the following limitations:
"Real" radio links have (long) existed - just for this purpose. Depending upon the season, signal propagation, even weather - a (proper/REAL) radio link may determine the best/clearest frequency & will "punch thru."
You may note that during the "World Trade Center" attack (9-11) in NYC - such radio gear - from my firm & others - was the ONLY (wireless) means of communication - all cells were DOWN!
Minus those (real/business-side) specifications (NONE provided) - post borders upon (pardon) fantasy/chronic over-reach.
About 10 years past - from just outside Chicago (USA) - I "worked" (communicated with) another radio ham - on 144MHz - who was 7 miles from my tech office. Seven MILES - C'mon cb1 - anyone can do that!
Except that we both designed & built our own equipment - and "BOUNCED OUR SIGNALS OFF THE MOON!" (thus avoiding a "high hill" - and "Line of Sight!" - as earlier proposed...)
This effort required more than 20 re-designs & antenna orientations - months worth of effort - & kilo-bucks, prior to success. Somehow - it never occurred to either of us - to "post upon a forum..."
Charles TsaiI think the Willis tower is blocking your signal.
That (may) explain why I located "near, yet just outside of Chicago." Hams have power restrictions (1KW) enforced by FCC. Without admitting (any) "breach of law/rules" - it was noted that, "Every light w/in my office complex DIMMED" as I keyed the Quad Eimac Tetrodes (TX AMP) - powered by 220VAC - and we "Got Thru!"
Thanks guys for replying...
I understand now that from board to board sending messages at such low power not possible. Will it be possible to interface a tm4c series microcontroller with a gsm module which can be used for sending messages over gsm network.
if yes: which development board(tm4c123g/tm4c129x) will be better for gsm interfacing and please mention which gsm module (part no)can be used. It will be of big help if someone can provide some start code as i am completely new to gsm interfacing.
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