https://sudonull.com/greenhouse-automation-on-esp32-sensors-and-hidden-pins
How to Set Up ESP32 for Home Farm Monitoring: Pin Selection, Sensor Calibration, Data Sending to the Cloud. Avoid ADC2 Errors.
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https://sudonull.com/acoustic-drone-detection-on-esp32-s3
Implement local quadcopter detection with ESP32 and ICS-43434 microphone. Goertzel algorithm for real-time frequency analysis. Instructions for developers: schematic, calibration, comparison with ML. Start your prototype for 15$.
https://sudonull.com/esp32-s3-internet-radio-code-and-schematic
Assemble internet radio on ESP32-S3 with UDA1334 and OLED. Full code, I2S connection, web interface. For middle/senior IoT developers.
https://sudonull.com/meshtastic-build-on-esp32-s3-lora-e22
Step-by-step build Meshtastic node on ESP32-S3 with LoRa E22-900M30S, GPS and OLED. Firmware adaptation, pinout, PlatformIO. For middle/senior dev.
https://sudonull.com/soil-sensor-data-compensation-on-esp32-scientific-models-and-agro-recommendations
How to Implement Scientific Compensation of IoT Soil Sensor Data on ESP32. Rhoades, Nernst, Delgado Models, Integration with Home Assistant, MQTT. Developer's Guide.
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