DFRobot Beetle Microcontroller, BLE and Beetle

<P>The Beetle-ESP32 Microcontroller is only 35 x 34mm (1.38 x 1.34in.) in size and is a simplified version of FireBeetle-ESP32, specially designed for electronic engineering fans and DIY lovers. It is equipped with 4 analogue ports, 4 digital ports, UART and I2C interfaces, making it a perfect replacement for many physically larger boards.</P><P>The microcontroller enables users to directly burn programs via the on-board USB interface and has Bluetooth and WIFI integrated in the microcontroller for supporting more applications.</P><UL><LI><STRONG>Features:</STRONG></LI><LI>Small size: only 35 x 34mm</LI><LI>Directly download and debug programs via Micro USB without a programmer</LI><LI>Large-scale I/O ports with gold plating, easy to twist wire on it or sew on to clothes with wires, no need to solder</LI><LI>A group of gold plated power interfaces of honeycomb type, convenient to use</LI><LI>Integrated WIFI and Bluetooth</LI></UL>
  • Specification:
  • USB supply voltage: 5.0V
  • VIN supply voltage: DC 3.5 to 6.5V
  • Processor: Tensilica LX6 dual-core processor (One for high speed connection; one for independent programming)
  • Frequency: 240MHz
  • SRAM: 520KB
  • Flash: 16Mbit
  • Wi-Fi standard: FCC/CE/TELEC/KCC
  • Wi-Fi protocol: 802.11 b/g/n/d/e/i/k/r (802.11n, high speed can reach to 150Mbps), converge A-MPDU and A-MSDU, supporting 0.4us protecting interval
  • Frequency range: 2.4 to 2.5GHz Bluetooth protocol: complies with BR/EDR/BLE standard of Bluetooth v4.2
  • On-chip Clock: 40MHz crystal and 32.768kHz crystal
  • Digital interface: D2, D3, D4, D7
  • Analogue interface: A0, A1, A2, A3
  • I2C: 1
  • Serial port: 1
  • Dimensions: 35 x 34mm

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