Using ethernet with ESP32 is very easy, thanks to the built-in RMII PHY. In this article, a simple ESP32 ethernet example is outlined.
Some notes on using LVGL with ESP32 to create GUI. Here are some lessons learned when trying to run LVGL with a new ST7789 based LCD.
Using the built-in GPS, ESP32 Gateway can obtain a fix on its current location and also acquire current time. This makes IoT asset tracking easier.
The ESP32 crashes on esp_netif_internal_dhcpc_cb() when being used as a NAT router with cellular modem and Wi-Fi or ethernet – SOLVED!
ESP32 4G hotspot demo using Simcom SIM7600 modem (based on PCB Artists 4G Gateway), including source code and detailed explanation.
The ESP32 4G Gateway Hardware Guide for Gen.1 devices guides you through the process of identifying and programming key features.
Tutorial on how to connect ES8388 with ESP32-C3 for quickly developing and prototyping audio applications. Uses PCB Artists ES8388 module.
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.