ESP32 Beetle microcontroller.
Did exactly what we needed it to do. (Bluetooth proximity sensors, with 0.96" OLED displays) Installing and using MicroPython on the board made development "easy" We had the project completed within a week.
Mark Venz
DFRobot
Beetle ESP32 Microcontroller
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Arduino Wireless and IoT
$18.75
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Is FireBeetle-ESP32 too big for your projects? Why not try our newly launched Beetle-ESP32. This Beetle-ESP32 Microcontroller of 1.38”×1.34”small size is a s...
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Is FireBeetle-ESP32 too big for your projects? Why not try our newly launched Beetle-ESP32. This Beetle-ESP32 Microcontroller of 1.38”×1.34”small size is a simplified version of FireBeetle-ESP32 and specially designed for electronic engineering fans and DIY lovers. It is equipped with 4 analog ports, 4 digital ports, UART and I2C interfaces, which would be a perfect replacement of FireBeetle-ESP32.
You may also check Bluetooth microcontrollor selection guide to get more information.
This microcontroller enables users to directly burn programs via the on-board USB interface. Meanwhile, Bluetooth and WIFI are integrated in the microcontroller for supporting more applications. With this Beetle-ESP32, you can easily build up your dreaming project.
Installing the ESP32 Board in Arduino IDE - DFRobot
FEATURES
- A small size of 35mm×34mm
- Enable users to directly download and debug programs through Micro USB, free from programmer.
- Large-scale I/O ports with gold plating, easy to screw wire on it or to sew the board on the clothes with wires, no need to solder.
- A group of gold plating power interfaces of honeycomb type, convenient to use.
- Integrate WIFI and Bluetooth
SPECIFICATION
- USB Supply Voltage: 5.0V
- VIN Supply Voltage: DC 3.5-6.5V
- Processor: Tensilica LX6 dual-core processor (One for high speed connection; one for independent programing)
- 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 150 Mbps), converge A-MPDU and A-MSDU, supporting 0.4us protecting interval.
- Frequency Range: 2.4~2.5GHz
- Bluetooth Protocol: comply with BR/EDR/BLE standard of Bluetooth v4.2.
- On-chip Clock: 40MHz crystal and 32.768 KHz crystal
- Digital Interface: D2, D3, D4, D7
- Analog Interface: A0, A1, A2, A3
- I2C: 1
- Serial Port: 1
- Dimension: 35×34mm/1.38×1.34"
DOCUMENTS
Jargon buster
Plain-language definitions for the technical terms used above.
- BLE
- BLE stands for Bluetooth Low Energy, a Bluetooth mode designed for low power use and broad compatibility with modern phones and computers. It connects well to battery-powered and mobile devices, including Apple hardware, though it behaves differently from Bluetooth Classic and its serial-style profiles.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- ESP32
- ESP32 is a family of low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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Supplier page — dfrobot.com
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DFR0575 beetle esp32 wifi bluetooth board schematics v1
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