Two arduinos communicating, one in LEO and one on the ground

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how 2 arduinos communicate, 1 in leo (about 250 miles up) , 1 on ground. have heard lora modules work, doppler shift mess up, have heard use iridium satellite phones, not sure how code them communicating or how done. aware arduinos communicate 2 minutes every 12 hours, not problem.

frankly, if can put in orbit, don't waste money spend put there on basic arduino. find money in multi-thousand dollar budget decent controller.


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