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| Spec |  Espressif NodeMCU ESP8266 | ||
|---|---|---|---|
| Compute | |||
| MCU | ESP8266EX | ESP8266EX | |
| Architecture | Tensilica L106 | Tensilica L106 | |
| Clock (MHz) | 80 | 80 | |
| Memory | |||
| RAM | 80 KB | 80 KB | |
| Flash | 4 MB | 4 MB | |
| Connectivity | |||
| Wireless | Wi-Fi | Wi-Fi | |
| InterfacesDiffers | UART, SPI, I2C, ADC | USB, UART, SPI, I2C, ADC | |
| I/O | |||
| GPIO pinsDiffers | 17 | 11 | |
| Power | |||
| Voltage | 3.3 V | 3.3 V | |
| Physical | |||
| DimensionsDiffers | 58 × 31 mm | 34.2 × 25.6 mm | |
| Form factorDiffers | DevKit | D1 Mini | |
| Weight (g)Differs | 10 | 3 | |
| Price & availability | |||
| PriceDiffers | ₹329 | ₹299 | |
| AvailabilityDiffers | In stock | In stock | |
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