Wi-Fi and Bluetooth MCU module integrates an ESP32 dual-core processor with embedded flash and PSRAM for memory-intensive IoT applications. The module supports 2.4 GHz 802.11 b/g/n Wi-Fi up to 150 Mbps plus Bluetooth v4.2 BR/EDR and Bluetooth LE. It operates from a 3.0 V to 3.6 V supply across a -40 °C to 85 °C ambient temperature range. The module uses a 38-pin surface-mount form factor measuring about 18.0 mm by 31.4 mm by 3.3 mm.
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| Processor | ESP32-D0WD dual core |
| Maximum CPU frequency | 240MHz |
| Flash memory | 4MB |
| PSRAM | 4MB |
| Wi-Fi standard | 802.11 b/g/n |
| Wi-Fi frequency band | 2.4GHz |
| Maximum Wi-Fi data rate | 150Mbps |
| Bluetooth | Bluetooth v4.2 BR/EDR and Bluetooth LE |
| Operating supply voltage | 3.0 to 3.6V |
| Operating ambient temperature | -40 to 85°C |
| Antenna option | PCB antenna |
| Module dimensions | 18.0 x 31.4 x 3.3mm |
| Pin count | 38 |
| Interfaces | SD card, UART, SPI, SDIO, I2C, I2S, GPIO, ADC, DAC, PWM, IR, pulse counter, capacitive touch |
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