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Comparing 2 of 3 boards
| Spec |  Espressif NodeMCU ESP8266 |  Espressif ESP32-DevKitC V4 | |
|---|---|---|---|
| Compute | |||
| MCUDiffers | ESP8266EX | ESP32-D0WD-V3 | |
| ArchitectureDiffers | Tensilica L106 | Xtensa LX6 (dual-core) | |
| Clock (MHz)Differs | 80 | 240 | |
| Memory | |||
| RAMDiffers | 80 KB | 520 KB SRAM | |
| Flash | 4 MB | 4 MB | |
| Connectivity | |||
| WirelessDiffers | Wi-Fi | Wi-Fi, Bluetooth, BLE | |
| InterfacesDiffers | UART, SPI, I2C, ADC | UART, SPI, I2C, I2S, CAN, ADC, DAC | |
| I/O | |||
| GPIO pinsDiffers | 17 | 34 | |
| Power | |||
| Voltage | 3.3 V | 3.3 V | |
| Physical | |||
| DimensionsDiffers | 58 × 31 mm | 55 × 28 mm | |
| Form factor | DevKit | DevKit | |
| Weight (g)Differs | 10 | 9 | |
| Price & availability | |||
| PriceDiffers | ₹329 | ₹649 | |
| AvailabilityDiffers | In stock | In stock | |