This guide compares the ecosystem and helps you pick the right S2 option quickly, using Espressif’s official docs. ESP32-S2 is the “USB + Wi-Fi” ESP32: single-core, Wi-Fi only (no Bluetooth), and designed for USB devices, low-cost IoT, and HMI-style projects…
This guide maps the whole ecosystem and helps you pick the right S3 board in 60 seconds. ESP32-S3 is the “modern classic” ESP32 for USB, AI/DSP workloads, and display/camera projects. But “ESP32-S3” can mean a lot of different things: Sources…
The ESP-01 (and ESP-01S) is the smallest, most annoying, and most misunderstood ESP8266 module. It can be incredibly useful (Wi-Fi bridge, tiny sensor node, UART→Wi-Fi device), but only if you wire it correctly and respect its boot pins. This guide…
The ESP8266 is the chip that kicked off the Wi-Fi microcontroller revolution. Even today it’s still a great choice for simple IoT devices: cheap, small, and supported everywhere. But it has quirks (boot pins, one ADC input, weak power rails…
The ESP32-DevKitC V4 is the “classic ESP32” dev board most tutorials assume. But the internet is full of half-truths: pinout posters without context, ADC guides ignoring Wi-Fi conflicts, and “use GPIO0” recipes that break boot. This guide is meant to…
This guide explains the most common ESP8266 variants (ESP-01, ESP-12E/F, NodeMCU and D1 mini) and shows their pinouts, safe GPIOs, and boot-sensitive pins to avoid. The ESP8266 started life as a tiny Wi-Fi module but quickly became a full microcontroller…
This guide compares ESP32 and STM32 to help you choose the right MCU for your project based on connectivity, real-time needs, power use, and tooling. When people say “ESP32 vs STM32”, they’re really comparing a Wi-Fi SoC (ESP32) with a…
Both ESP32-S2 and ESP32-S3 are “second-wave” ESP32 chips: they add native USB and more modern security features compared to the original ESP32. But they target slightly different use cases: If you’re deciding what to base a new board or project…
This guide compares ESP32 (original, ESP32-WROOM / WROVER) vs ESP32-S3, and ends with practical “choose this if…” scenarios. Espressif’s ESP32 family has exploded with variants, but for most makers and IoT projects the real question is simple: Should I use…
The ESP32-P4-EYE is one of Espressif’s newest dev kits: a tiny “camera-in-a-box” based on the ESP32-P4 SoC, with a built-in LCD, 2 MP camera, microphone, MicroSD and dual USB-C ports. It’s designed as a ready-made platform for AI vision and…