DFRobot DFR0809 多协议模块 ESP32-C3-MINI-1-N4 模块（PCB 天线）
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ModelDFR0809
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Frequency: 2.4 GHz
Interface Type: I2C, I2S, SPI, UART
Supply Voltage - Max: 3.6 V
Supply Voltage - Min: 3 V
Antenna Connector Type: PCB
Operating Supply Voltage: 3 V to 3.6 V
Protocol - WiFi - 802.11: 802.11 b/g/n
Maximum Operating Temperature: + 85 C
Minimum Operating Temperature: - 40 C
Protocol - Bluetooth, BLE - 802.15.1: Bluetooth 5.0
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