Difference Between ESP32 and ESP8266

Last Updated on May 11, 2024

ESP32 and ESP8266 are popular microcontrollers developed by ESpressif Systems. These two are holding important position in the simple and small level IoT (Internet of Things) and Embedded Systems applications. Due to its compact size and different communication interface and data processing speed, both ESP32 and ESP8266 standout from the mircrocontroller crowd., Let’s know the Difference Between ESP32 and ESP8266 Microcontroller based development boards, so that we can effectively use those boards in our projects.

These two are cost effective boards with Wi-Fi communication ability and it is very important for IoT based applications. ESP32 and ESP8266 Microcontroller comes under 32 bit size processors with GPIO, SPI, I2C and UART. So that its getting more attention in the development board category.

Before analyzing the difference between ESP32 and ESP8266, look at the physical view of these two and pinout details.

ESP32 Board

ESP32 Pinout

Read Here for Getting Started with ESP32 Board.

ESP8266 Board

ESP8266 Pinout

Comparison Table

ESP32 ChipESP8266 Chip
Processing PowerDual-core processorSingle-core processor
Clock SpeedHigher clock speeds
80MHz to 240MHz
Lower clock speeds
up to 80MHz
Wireless ConnectivityWiFi (HT40) and Bluetooth
Bluetooth 4.2 and BLE
WiFi only (HT20)
Peripheral Interfaces
General Purpose Input Output
MemoryMore Flash memory and RAMLess Flash memory and RAM
Power ConsumptionAdvanced power management featuresBasic power management
Operating Temperature-40°C to 125°C-40°C to 125°C

each board costs less than $6 and it is very cheap when compared to others. You can use any of these two for Wi-Fi based IoT projects and if you looking for Bluetooth together then ESP32 will be the winner.

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