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| Parameter | Specification |
|---|---|
| Module | ESP-12E (ESP8266EX based) |
| Wi-Fi Standard | IEEE 802.11 b/g/n |
| Frequency Range | 2.4 GHz – 2.5 GHz |
| Operating Voltage | 3.0V – 3.6V DC (3.3V typical) |
| Logic Level | 3.3V Only (Not 5V Tolerant) |
| CPU | 32-bit Tensilica L106 MCU |
| Clock Speed | 80 MHz (up to 160 MHz) |
| Flash Memory | Typically 4 MB SPI Flash |
| SRAM | 64 KB Instruction + 96 KB Data RAM |
| GPIO Pins | Up to 11 usable GPIOs |
| ADC | 1 × 10-bit ADC |
| Communication Interfaces | UART, SPI, I²C (software), I²S, PWM, GPIO |
| Wi-Fi Modes | Station (STA), Access Point (AP), STA+AP |
| Security | WEP, WPA, WPA2 |
| TCP/IP Stack | Built-in |
| Antenna | On-board PCB Antenna |
| Output Power | Up to +20 dBm |
| Deep Sleep Current | <10 µA |
| Operating Current | ~80 mA average |
| Operating Temperature | -40°C to +125°C |
| Dimensions | Approx. 24 × 16 × 3 mm |
