Wireless module integrates an ESP32 dual-core 32-bit LX6 microprocessor for 2.4 GHz Wi-Fi, Bluetooth BR/EDR, and Bluetooth LE connectivity. The module supports up to 240 MHz CPU operation, up to 26 GPIOs, and common embedded interfaces including UART, SPI, SDIO, I2C, I2S, ADC, DAC, PWM, and TWAI. External antenna connection is provided through a compatible U.FL, MHF I, or AMC connector. Supply operation is specified from 3.0 V to 3.6 V, with operating ambient temperature options from -40 °C to 85 °C or -40 °C to 105 °C depending on suffix. Green certification includes REACH and RoHS compliance.
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| Processor core | Xtensa dual-core 32-bit LX6 |
| Maximum CPU clock frequency | 240MHz |
| Wi-Fi standard | IEEE 802.11 b/g/n |
| Maximum 802.11n data rate | 150Mbps |
| Wi-Fi operating frequency | 2412 to 2484MHz |
| Bluetooth protocol | Bluetooth v4.2 BR/EDR and Bluetooth LE |
| Bluetooth LE operating frequency | 2402 to 2480MHz |
| GPIO count | Up to 26 |
| Module pins | 38 |
| SPI flash options | 4, 8, or 16 Quad SPIMB |
| PSRAM option | 2 Quad SPI on R2 variantsMB |
| Antenna connection | External antenna connector |
| Supply voltage | 3.0 to 3.6V |
| External supply current capability | 0.5 minimumA |
| Operating ambient temperature | -40 to 85 or -40 to 105, suffix-dependent°C |
| Dimensions | 18.0 × 19.2 × 3.2mm |
| Typical Wi-Fi transmit power | 19.5 at 802.11b 1 MbpsdBm |
| Typical Wi-Fi receive sensitivity | -97 at 802.11b 1 MbpsdBm |
| Moisture sensitivity level | MSL 3 |
| ESD human body model | ±2000V |
| RoHS | Compliant |
| REACH | Compliant |
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