ESP

The ESP8266 and ESP32 are highly popular, low-cost Wi-Fi microcontrollers developed by Espressif Systems. While the ESP8266 is ideal for budget-friendly, Wi-Fi-only IoT projects, the ESP32 is a much more powerful powerhouse featuring dual-core processing, Bluetooth, and extensive hardware interface.

Feature Breakdown & Comparison
The ESP32 vs ESP8266 comparison highlights clear differences in computing power, wireless capability, and hardware interfaces:
Feature  ESP8266 ESP32
Processor Single-core 80 MHz Dual-core up to 240 MHz
Wireless Wi-Fi (802.11 b/g/n) Wi-Fi & Bluetooth (BLE / v4.2)
General Purpose I/O (GPIO) ~17 pins ~36 pins
Analog Input (ADC) 1 pin (10-bit resolution) Up to 18 pins (12-bit resolution)
Analog Output (DAC) None 2 pins (8-bit resolution)
Security Basic SSL/TLS Hardware accelerated AES, SHA, Secure Boot
ESP
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