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6 years, 2 months ago.
How to connect Adafruit Fona808 (https://www.adafruit.com/product/2542) and STM32F401RE?
I tried this great library but I could not make my circuit work. (https://os.mbed.com/users/marcpl/code/Adafruit_FONA_Library_FONAtest/) Which pins should I use? What changes should I make to the library for my circuit to work properly?
Thanks so much.
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