Make an accurate, low power, cloud-connected ESP32 decibel meter using any ESP32 devkit, Arduino IDE and ThingsBoard. Includes demoArduino sketch.
Using ethernet with ESP32 is very easy, thanks to the built-in RMII PHY. In this article, a simple ESP32 ethernet example is outlined.
Notes on the ESP32-C3 GPIO usage – strapping pins, RTC domain pins, flash pins and tips on how to get maximum GPIOs for your design.
Notes on how to port ESP32 code to ESP32-C3. Based on ESP-ADF ES8388 driver code ported to work with ESP32-C3 audio applications.
Using Winbond W25N01 with ESP32 and STM32 can be tricky given how much it differs from regular NOR flash like W25Qxx.
Here is a tiny, low power and accurate I2C sound level sensor module for Arduino, ESP32, and others. Read sound level in A-weighted decibels.
Detailed notes on which ESP32 ethernet PHY options are supported by the most recent ESP32 Arduino releases and ESP-IDF.
With example code, this article covers ESP32 SIM7600 4G LTE cellular modem interfacing using Arduino IDE. Hardware used is ESP32 Gateway.
News and Updates on the ESP32 4G Gateway Gen.1 which features a 4G LTE modem, ethernet, RS485 and solar power with a battery charger.
ESP32 PPPoS modem “esp_modem_dte_send_cmd(): process command timeout” error, causes, and some solutions that work with SIM7600 and A7670.