05-12-2023, 12:25 AM
just RXD and TXD by ESP32 or by SIM800L, TXD->RXD, RXD->TXD.
if sometimes can't work, just exchange the pin define will be ok.
if sometimes can't work, just exchange the pin define will be ok.
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Sample code for SIM800L and schematics
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Sample code for SIM800L and schematics - by ebelingtec - 05-10-2023, 04:00 PM
RE: Sample code for SIM800L and schematics - by admin - 05-10-2023, 10:16 PM
RE: Sample code for SIM800L and schematics - by ebelingtec - 05-11-2023, 07:05 PM
RE: Sample code for SIM800L and schematics - by Anthonio - 06-25-2023, 09:46 PM
RE: Sample code for SIM800L and schematics - by admin - 05-12-2023, 12:25 AM
RE: Sample code for SIM800L and schematics - by ebelingtec - 05-12-2023, 10:24 AM
RE: Sample code for SIM800L and schematics - by admin - 05-12-2023, 10:40 AM
RE: Sample code for SIM800L and schematics - by ebelingtec - 05-16-2023, 09:03 AM
RE: Sample code for SIM800L and schematics - by admin - 05-16-2023, 10:50 AM
RE: Sample code for SIM800L and schematics - by ebelingtec - 06-27-2023, 10:21 AM
RE: Sample code for SIM800L and schematics - by ktmustafa - 07-12-2024, 05:12 PM
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