The Wi-Fi and Bluetooth MCU module integrates an ESP32-D0WDQ6 dual-core Xtensa 32-bit MCU running up to 240 MHz with 4 MB SPI flash and a 40 MHz crystal oscillator. It supports 2.4 GHz IEEE 802.11b/g/n Wi-Fi up to 150 Mbps plus Bluetooth v4.2 BR/EDR and Bluetooth LE. The PCB-antenna module operates from a 3.0 V to 3.6 V supply over a -40 °C to 85 °C ambient temperature range. It provides up to 32 GPIOs and interfaces including UART, SPI, SDIO, I2C, I2S, PWM, ADC, DAC, capacitive touch, IR, pulse counter, and TWAI/CAN-compatible functions. The 38-pin module measures 18 mm by 25.5 mm by 3.1 mm and is RoHS and REACH compliant.
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| Core MCU | ESP32-D0WDQ6 |
| CPU architecture | Xtensa dual-core 32-bit LX6 |
| CPU maximum frequency | 240MHz |
| ROM | 448KB |
| SRAM | 520KB |
| RTC SRAM | 8KB |
| SPI flash | 4MB |
| Crystal oscillator frequency | 40MHz |
| Wi-Fi standard | IEEE 802.11b/g/n |
| Wi-Fi maximum bit rate | 150Mbps |
| Wi-Fi operating channel center frequency | 2412 to 2484MHz |
| Bluetooth specification | Bluetooth v4.2 BR/EDR and Bluetooth LE |
| Antenna type | On-board PCB antenna |
| GPIO count | Up to 32 |
| Pin count | 38 |
| Operating supply voltage | 3.0 to 3.6V |
| External supply current | 0.5 minimumA |
| Operating ambient temperature | -40 to 85°C |
| Module dimensions | 18 x 25.5 x 3.1mm |
| Moisture sensitivity level | MSL 3 |
| RoHS | Compliant |
| REACH | Compliant |
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