ESP32-SMS-SRV
ESP32 SMS gateway using W5500 Ethernet, GSM modem, web UI, MQTT, and OTA for reliable wired field alerts.
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Components
Hardware components
WIZnet - W5500
x 1
Espressif - ESP32
x 1
Project description
What the Project Does This project turns an ESP32 into a network-managed SMS gateway that can be used for equipment alarms, facility notifications, machine status messages, remote maintenance alerts, and caller ID logging. The core idea is simple: the system separates network control from cellular messaging. The W5500 Ethernet side connects the ESP32 to the local network. Through that connection, an operator can open a browser dashboard, configure the device, send SMS messages, check SMS history, review caller logs, configure MQTT topics, test broker connectivity, and perform OTA updates. A…
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