This guide explains the ESP32-C6 DevKitC-1 v1.2 pinout, showing which GPIOs are safe ,which affect boot or native USB and how to pick pins for ADC, I²C, SPI, UART, and the RGB LED. The ESP32-C6-DevKitC-1 v1.2 is Espressif’s entry-level board…
(LCD, encoder, RGB LED, audio, IR, “safe” pins) The ESP32-C3-LCDkit is a small all-in-one dev board with: It’s perfect for small GUI gadgets, knobs, thermostats, timers – but many GPIOs are already “spoken for” by the LCD and other peripherals.…
(Safe pins, ADC, I²C, SPI, UART, RGB LED) The ESP32-C3-DevKitM-1 is Espressif’s tiny RISC-V dev board based on the ESP32-C3-MINI-1 / MINI-1U module – a very compact Wi-Fi + BLE module with 4 MB flash. It’s designed to plug into…
(Safe pins, ADC, I²C, SPI, UART, LED) The ESP32-C3-DevKitC-02 is Espressif’s small RISC-V dev board based on the ESP32-C3-WROOM-02 module (4 MB flash, Wi-Fi + BLE). Almost all useful GPIOs are broken out on the two headers J1 and J3.…
(Safe Pins, ADC, I²C, SPI – and why there is no touch) ESP32-C2 is the small brother in the ESP32 family: Wi-Fi 4 + BLE 5, RISC-V core at up to 120 MHz, and only 14 GPIOs – the ESP8684…
ESP-NOW is a proprietary low-power, low-latency wireless protocol by Espressif that allows ESP32 boards to talk directly to each other without creating full Wi-Fi connections. It’s ideal for building a fast sensor network that reports into Home Assistant through a…
A “smart” bathroom fan should: Below is a complete Home Assistant implementation that uses: The logic is split into three parts: 1. Prerequisites: Entities Used Assumed entities: If the fan is a switch, just replace fan.bathroom_fan with switch.bathroom_fan in the…
When an ESP32 randomly resets, freezes, or shows a “Guru Meditation Error”, one of the simplest and most effective ways to find the problem is to log progress to the Serial Monitor. The idea is very basic: Add Serial.println(“Line X”);…
This project shows how to do a simple LoRa “Hello World” send & receive test using two TTGO LoRa32 (SX1276) boards with built-in 0.96″ SSD1306 OLED displays. We’ll configure one board as a sender, which sends a counter every second,…
This guide focuses on pinout and GPIO selection for the DevKitC-1, so you can safely connect sensors, relays, USB, displays etc. without running into weird boot issues. The ESP32-S3-DevKitC-1 is Espressif’s entry-level development board for the ESP32-S3-WROOM-1 / 1U /…