Build an ESP32 Interactive Voice Response System Using GeoLinker

https://circuitdigest.com

Learn how to build an ESP32 Interactive Voice Response System that works offline. Call a number, press keys, control appliances. Full circuit, code & block diagram.

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ESP32-CAM Attendance System with WhatsApp Alerts

https://circuitdigest.com

Step-by-step ESP32-CAM attendance system tutorial with OLED display, rotary encoder, and WhatsApp notifications using CircuitDigest Cloud. Includes wiring, full source code, and FAQs.

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