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Xinyuan-LilyGO / LilyGo-T-Call-SIM800

https://www.aliexpress.com/item/33045221960.html
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SPI SD card module and SIM800L module together don'T work. #171

Closed marmou-fritzing closed 3 years ago

marmou-fritzing commented 3 years ago

Good afternoon. I have an problem with simultaneously function of SIM800L and SPI SD module together. Because standard SPI pins (18,19,23,5) and pins for SIM800L controls (26,27,4,5,23) are shared (23 and 5), then I try redirect SPI to different pins. I use SPI.begin(18,19,0,2); and on these pins I have connected SD. module. When i have commented SD.begin(); then SIM800L works perfectly. Starting sequention is without problems. When i uncomment SD.begin(); then I got from SIM800 an text "1: 5004 0000;0: 102C 0001;1: 1005 0000;0: 0000 0001 [0000];0: 0000 00A3;ystem halt!". SD card works perfectly. When i comment SD.begin(); then SIM800L works again without problems. Have You any experiences about this issue ? Thank You.

marmou-fritzing commented 3 years ago

Already solved - reconnected to another pins: 18,19,14,25. All works.

afriansy4h commented 1 year ago

@marmou-fritzing you are my Superstart ! Thanks