GPIO initialization on the ESP32 in ESP-IDF
Why explicit GPIO configuration in ESP-IDF is preferable to setting pin direction while assuming the rest of its state.
ESP32
FreeRTOS stack size on ESP32 - words or bytes?
Clarifying the difference between standard FreeRTOS and ESP-IDF stack-size units when creating tasks and interpreting stack measurements.
ESP32, DS18B20, TM1637 integration: Displaying temperature data
Combining an ESP32, a DS18B20 temperature sensor, and TM1637 LED displays to show temperature measurements.
Interfacing an ESP32 to an MCP23017 GPIO expander
Connecting an MCP23017 GPIO expander to an ESP32 over I2C with a reusable component for configuration, reads, and writes.
Using TM1637-based LED displays with ESP32
Extending an ESP32 component for TM1637 LED displays to show positive and negative floating-point values with appropriate rounding.
Serving sensor data via ESP32
Serving Si7021 temperature and humidity readings from an ESP32 web server, with URL-based control of an LED.
ESP32 reading Si7102 temperature and humidity data via I2C bus
Developing a reusable ESP-IDF component to read Si7021 temperature and humidity measurements over the ESP32’s I2C bus.
Setting up Arduino IDE with Heltec ESP32 module for macOS
Setting up the Arduino IDE on macOS for a Heltec WiFi Kit 32, including workarounds for installation and SSL errors.