Example of GSM 900A use cases in cellular IoT
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Updated
Aug 13, 2022 - C++
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gsm900a
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Real-time ammonia gas monitoring system using ESP32, MQ gas sensor, and DHT22. Streams live NH3, temperature, and humidity data to an Android app over BLE. Triggers SMS alerts via GSM900a when levels exceed a configurable threshold.
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Updated
Mar 20, 2026 - Kotlin
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