Activity › Forums › Questions & Troubleshooting › Hardware › Trouble connecting SIM800L to controllino MAXI › Reply To: Trouble connecting SIM800L to controllino MAXI
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Hi Marco,
Thanks for your reply!
1) I have two SIM800L’s available for testing, the small red 800L core board and the RoHS SIM800L EVB 2.0. I guess they are both plane boards.
2) I tried different power supplies. I tried some battery stacks and a Meanwell HDR-15-5, 2.4 amps with a 100N capacitor. Both SIM-modules mentioned above are running steady now on the MINI.
3) Which pins on the X2 do you exactly mean for UART communication? I tried pin 16 (TXD2) and 17 (RXD2) and pin 18 and 19 on the MAXI, neither of them were succesfull.
Thanks agian!
Best regards,
W. Mets