2.4 GHz Wi-Fi MCU module integrates an ESP32-S2 single-core Xtensa LX7 processor running up to 240 MHz. The module includes 4 MB SPI flash, 2 MB PSRAM, 37 GPIOs, USB OTG, ADC, DAC, touch sensing and other peripheral interfaces. It operates from a 3.0 V to 3.6 V supply over a -40 °C to 85 °C ambient temperature range and uses an external antenna connector. The module is RoHS and REACH compliant and is designated end-of-life.
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| Wireless protocol | IEEE 802.11b/g/n |
| Operating frequency | 2412 to 2484MHz |
| Maximum data rate | 150Mbps |
| CPU core | Xtensa single-core 32-bit LX7 |
| Maximum CPU frequency | 240MHz |
| Embedded flash | 4MB |
| PSRAM | 2MB |
| GPIO count | 37 |
| Supply voltage | 3.0 to 3.6V |
| Recommended supply current capability | 0.5 minimumA |
| Operating ambient temperature | -40 to 85°C |
| Antenna type | External antenna connector |
| Antenna connector compatibility | U.FL, MHF I, AMC |
| Module dimensions | 18.0 x 31.0 x 3.3mm |
| TX power at 802.11b 1 Mbps | 19.5 typicaldBm |
| RX sensitivity at 802.11b 1 Mbps | -96 typicaldBm |
| Light-sleep current | 750 typicalµA |
| Moisture sensitivity level | MSL 3 |
| RoHS | Compliant |
| REACH | Compliant |
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