Read Schneider PM2100 Power Meter Data with ESP32 (Modbus RS485 Tutorial)
Learn how to connect a Schneider PM2100 power meter to an ESP32 using an RS485-to-TTL module and Modbus RTU. Read …
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ESP32 CO₂ Monitoring: How to Interface the Sensirion SCD30 NDIR Sensor
Learn how to interface the Sensirion SCD30 NDIR CO₂ sensor with an ESP32 using I2C and Arduino IDE. Measure real-time CO₂ concentration, temperature, and humidity while building a foundation for IoT-based indoor air-quality monitoring.
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ESP32 SIM800L Fire & Gas Alarm with SMS Alerts (No WiFi)
An ESP32 + SIM800L system that detects fire and gas, sends SMS alerts, and answers "status" texts — no WiFi …
ESP32 MQTT Tutorial: Send Sensor Data & Control an LED with MQTT Bhai
Learn how to connect an ESP32 to an MQTT broker and use MQTT Bhai to monitor sensor data and remotely …
How to Connect ESP32 to AWS IoT Core Without Wi-Fi Using SIMA7670G (Full Tutorial)
Learn how to connect your ESP32 to AWS IoT Core over 4G LTE using the SIMA7670G module — no Wi-Fi …
Chapter 4: Hardware and Tools Buying Guide | Phase 1
Bridge the gap between software and the physical world. Discover the exact ESP32 starter kit, expansion modules, and "forever" engineering …
How to Get GPS Data with LILYGO T-A7670G (ESP32 4G LTE)
Learn how to extract precise GPS location data using the LILYGO T-A7670G. This step-by-step tutorial covers hardware setup, active antenna …