Place the SIM800L library folder into your \Documents\Arduino\libraries folder ... If you define and pass reset pin of your board you can reset GSM by external reset pin of the SIM800l GSMTime(time) ...

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👍Support WIFI and GSM dual network(you can use GSM if there is no WIFI, The WIFI only can work with 2.4G, not work with 5G), Different alarm status: away arm, home arm, delay arm and timely arm ...

That message read: “#REL1=ON”. The message was sent from mobile number 99684366 to 99683752, the latter connected to a GSM module placed in the car. Based on cellular tower data, the sender's phone ...

CrowPi 3 is a Raspberry Pi 5-powered all-in-one portable AI learning and development platform with a 4.3-inch touchscreen display, plenty of plug-and-play electronic modules, a breadboard area, and ...

Learn how to send SMS alerts from NodeMCU using Wi-Fi and Circuit Digest’s free SMS API, without a GSM module. A simple and cost-effective solution for real-time IoT notifications. Free SMS API for ...