legacy wiki page - https://w.electrodragon.com/w/Category:SIM800
- https://w.electrodragon.com/w/SIM800_HDK
modules
SIM808-dat - https://www.electrodragon.com/product/sim808-dev-board-gsmgprsgps-replacing-sim908/
SIM800-dat - https://www.electrodragon.com/product/sim800c-dev-breakout-board-antenna/
Note
- 2G service are slowly shut down in more and more countries, you should consider you SIM7020-dat - NGS1094-dat - NGS1095-dat - NGS1096-dat instead