There are 16 channels from 0 to 15. Install the Bluetooth helper LightBlue from the app store on the phone and establish a BLE connection with the ESP32-E module. All GPIO pins broken out from the FireBeetle 2 ESP32-E development board, except those that are already occupied or have specific functions, can be used as external interrupt pins. This document introduces the hardware specifications of ESP-WROOM-02D and ESP-WROOM-02U. This document introduces the specifications of ESP32-S3-MINI-1 & ESP32-S3-MINI-1U hardware, including overview, pin definitions, functional description, and electrical characteristics, etc. Project 2. Syntax: file.write(data) and file.write(buf, len). FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips.. The guidelines outline recommended design practices when developing standalone or add-on systems based on the ESP32-C3 series of products. ESP32-DevKitS reference design resources, including schematics, PCB layout, gerber files, and BOM list. ESP32, more powerful than any other Arduino, Project 4. Configuration. DFR0654-F supports WiFi and Bluetooth dual-mode communication and features a small size, ultra-low power consumption, onboard charging circuit, and easy-to-use interface, which can be conveniently used for smart home IoT, industrial IoT applications, wearable devices, and so on. This chapter starts with blinking an LED to demonstrate the usage of FireBeetle 2 ESP32-E. It's easily programmable via Arduino IDE, and ideal for smart home IoT, industrial IoT applications, wearable devices . One ESP32 board will send data to the other ESP32 board, which is the most basic model for using Bluetooth wireless communication. DAC circuit is composed of built-in resistors in series and a buffer. This user guide shows how to get started with the ESP32-PICO-KIT V4 mini development board. This document introduces to users the ESP32-LyraTD-DSPG development board, focusing on specifications, flashing the firmware, network configuration,and interactive function. ESP32, ESP32-S2, ESP32-S3, ESP32-C2, and ESP32-C3. Click to enter the official Arduino website. The led is a WS2812. In this lesson, we'll learn about the principle of serial communication. This document introduces the specifications of ESP32-S3-WROOM-1 and ESP32-S3-WROOM-1U hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. Refer to the GDI part of this page. This document introduces the specifications of ESP-WROOM-02 hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. Currently, it is widely recognized as one of the most popular LED control libraries for Arduino developers. This document describes known errata in ESP32-S3 series of SoCs. The demo is the AT command set based on uart. Then, set the PWM signal frequency. The guidelines outline recommended design practices when developing standalone or add-on systems based on the ESP32-S2 series of products. The manual provides detailed and complete information on how to use the ESP32 memory and peripherals. Turn your worthy ideas into fantastic reality with this FireBeetle series board! libat_core.a is AT Command Core, and it is the core of AT command, including the default AT instruction set, the AT command parsing, execution and responding. The demo is the AT command set based on uart. Select it as the way shown below. We have learned how to light up the LED through the IO port before. The GDI on the expansion shield only supports ESP32-E. Function: Establish a BLE server that can provide data and send notifications to clients. MPDU and A-MSDU, supporting 0. Schematics, PCB layout, Gerber and BOM files of ESP32-DevKitC-V4. Program function: Light up the on-board RGB LED and make it show red, green, blue and a randomly-mixed color in sequence repeatedly. This document introduces the specifications of ESP8684-WROOM-02C and ESP8684-WROOM-02UC hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. It is a quick-way to get started into your product development process. It can be observed that when the sensor value is 4095, the detected voltage is about 3.3V. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard. 2.Click to download esptool Flash burning tool. Please enter your details below and we will send you an email when this item is back in stock. The dimension of mounting hole: inner diameter 3.1mm; outside diameter 6mm. - Return value: The number of bytes sent. 2. This is a IoT solution development guide. The pin list for using GDI camera interface is shown below: When using FPC to connect the screen, please configure the corresponding pin numbers according to the GDL demo. This document introduces how to use EspRFTestTool to conduct an RF performance test. I accidentally saw a VFD fluorescent screen before, it was green-blue when it was lit, and it glowed with white light, which makes the whole screen a mottled beauty. If you find that the driver is not automatically installed when you plug in the device, you can manually install it yourself: For any other questions, advice or cool ideas to share, please visit the DFRobot Forum. IFTTT aims to help people use the open API of various websites to monitor the triggers set by users. One of the things I didn't like about the HiLetGo/NodeMCU board was the pins. Click to enter "Webhooks", and select "Receive a web request". This open source board of high-flexibilty could bring you infinite possibilities! Common ground for all power supplies and logics, When powered by 5V-USB, VCC outputs about 4.7V and 3V3 outputs 3.3V; When powered by 4V li-ion battery, VCC outputs about 4V and 3V3 outputs 3.3V(Actual measurement), Occupied when using USB power supply and serial printing, For controlling onboard LED by outputting digital signal, DAC_1Range: 0-255; Output Voltage: 0-3.3V, DAC_2Range: 0-255; Output Voltage: 0-3.3V, IO2/D9 (Connected to the on-board LED, and can't be used to test the touch sensing function), Compatible with DFRobot FireBeetle V2 Series, ESP32 Dual-core low power maincontroller, WiFi+BT4.0, Onboard Charging Circuit and PH2.0 li-ion Battery Port, Input Voltage: 3.3V-5.5V (Support USB Charging), Processor: Tensilica LX6 dual-core processor (One for high-speed connection; one for independent application development), Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (802.11nspeed up to 150 Mbps), A-MPDU and A-MSDU Aggregation, support 0.4us guard interval), Bluetooth Protocol: Bluetooth v4.2 BR/EDR and BLE standard compliant, On-chip Clock: 40MHz crystal, 32.768KHz crystal, Connector: FireBeetle V2 series compatible. FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips. The getting started guide for ESP-WROVER-KIT. Solar Weather Station Using ESP32, {if(miniCur.show){miniCur.show = false}else{miniCur.show = true}}"> FireBeetle 2 ESP32-E supports Arduino programming, and will support Scratch graphical programming and MicroPython programming very soon. Functional overview, parameter configuration, function description, application demos and other information is included. When the digital pin outputs high, the LED turns on. The on-board LED lights up when the button is pressed, and turns off when released. Great for prototyping, but I had to desolder and resolder for the final build which is a pain . The received data will be viewed on serial port. The manual provides detailed and complete information on how to use the ESP8684 memory and peripherals. The SPI of FireBeetle 2 ESP32-E can be configured to all I/O ports, and you can refer to the underlying code for usage (not recommended for beginners). Function: Drive the onboard LED using PWM to display a breathing light effect. Schematics, PCB layout, gerber and BOM files of ESP32-S3-MINI-1, Schematics, PCB layout, gerber and BOM files of ESP32-S3-MINI-1U, Schematics, PCB layout, gerber and BOM files of ESP32-S3-WROOM-1, Schematics, PCB layout, gerber and BOM files of ESP32-S3-WROOM-1U. This document provides the specifications for the ESP32-WROVER-B and ESP32-WROVER-IB modules with PCB antenna and external antenna connector. The electric current is just 10A in the deep-sleep mode. ESP32-S2-WROVER-I reference design resources, including schematics, PCB layout, gerber files, and BOM list. This document introduces the specifications of ESP32-MINI-1& ESP32-MINI-1Uhardware, including overview, pin definitions, functional description, and electrical characteristics, etc. Controlling Air Conditioner temperature automatically with ESP32, Project 5. This section introduces how to get and print the status of the touch sensor on FireBeetle 2 ESP32-E by Arduino code. This is the FAQ repository for Espressif's products. Now it is not only fully compatible with Arduino development environment, but also comes with abundant hardware and software resources. Change the Lipo battery connecter direction. Firebeetle 2 ESP32-E has an onboard WS2812 RGB LED connected to the pin IO5/D8, which is not broken out from the board, so IO5/D8 is exclusively reserved for the RGB LED, located as shown in the figure below: FastLED is a powerful and easy-to-use Arduino library for controlling LED strips such as WS2810 and LPD8806. The guidelines outline recommended design practices when developing standalone or add-on systems based on the ESP8684 series of products. Next, create our Event Name "message" and click "Create trigger" to complete the setup for "this". When the file is closed, flush() will run automatically. filename, the name of the file to open. Description: Checks if a file or folder exists on the SD card. FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips. You can easily create your own IoT smart home system when connecting it with an IoT platform like IFTTT. This document provides examples of using ESP32 for Bluetooth Networking for IoT devices, and introduces APIs related to networking development. ESP32-S2-WROOM-I reference design resources, including schematics, PCB layout, gerber files, and BOM list. Schematics, PCB layout, gerber and BOM files of ESP32-WROVER-E. Schematics, PCB layout, gerber and BOM files of ESP32-WROVER-IE. Open the serial monitor and you can see the current value from the angle sensor printed in it. Description: Return to the first file in the current directory. Hi, I'm using a DFRobot Firebeetle 2 (ESP32-WROOM-32E) and have been using the 3.3v pin to connect various components. - Return value: A boolean value. ESP8266_RTOS_SDK is the official development framework for theESP8266EXchip. The transmitted data can be viewed. This document introduces the specifications of ESP32-PICO-V3-ZERO hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. Open the serial monitor, set the baud rate to 115200, and you can see the printed value increasing every second. Description: Removes a file from the SD card. Off when fully charged or not charged; 2. This document introduces a downloading protocol for ESP8266 firmware. The ESP32-MeshKit-Sense Hardware Design Guidelines introduces the block diagram, PCB layout and function modules of the development board ESP32-MeshKit-Sense. Document / [DFR0478]FireBeetle Board-ESP32(V1.0).pdf Go to file Go to file T; Go to line L; Copy path Copy permalink; This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. ESP-WHO is a face detection and recognition platform that is currently based on Espressif Systems'. Copyright 2015-2023 Espressif Systems. We provide you with detailed online tutorials and application cases, and there are thousands of sensors with welding-free Gravity interface and actuators to help you get started easily. The binaries the compiler is generating for ESP32 seem to run on ESP32-E unchanged. FireBeetle Board - ESP32 integrates a Dual-Core ESP-WROOM-32 module, which supports MCU and Wi-Fi &Bluetooth dual-mode communication. ESP-Jumpstart is focused on buildingproductson ESP32. This ESP32-E IoT microcontroller operates at 3.3V supply voltage. 305 KB Download. The FireBeetle 2 ESP32-E board overview. This document provides the specifications for the ESP32-SOLO-1 module. Please find it in the "help" folder of the zip file. The FireBeetle ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips. This document provides an introduction to the specifications of the ESP32-PICO-MINI-02 and ESP32-PICO-MINI-02U modules. This document provides the specifications of the ESP8685 chip. This document provides instructions on the manufacturing of the test fixtures for Espressif's Wi-Fi modules, in an effort to avoid problems caused by the lack of standardized fixtures during the module production and testing. This application utilizes two small programs, Webhooks and Email, to achieve sending an HTTP POST request every 10 seconds. STA+AP mode: The coexistence mode of the two modes, which can realize seamless switching between Internet control and local area network control. The driver is not installed automatically after plugging into the device? The esp32 is too big to be in a normal key fob size. This document introduces the specifications of ESP8684-MINI-1 and ESP8684-MINI-1U hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. https://download.dfrobot.top/FireBeetle/package_DFRobot_index.json to http://download.dfrobot.top/FireBeetle/package_DFRobot_index.json and reload it. DFR0478 FireBeetle ESP32 IOT Microcontroller(V3.0) . This user guide will help you get started with ESP32-S3-EYE v2.1 and will also provide more in-depth information. Project 1. ESP-LAUNCHER, ESP-Test Board, hardware downloading resources, manufacturing specifications, BOM, schematics. Make a Home-made Network Clock with ESP32-E. Introduction: This production will be very simple, getting the time from the internet via the wifi of the ESP32, and then you need to find a screen that displays the time. This document introduces the specifications of ESP8684-WROOM-07 hardware, including overview, pin definitions, functional description, and electrical characteristics, etc. The manual provides detailed and complete information on how to use the ESP32-S2 memory and peripherals. - Return value: The object corresponding to the next file. ESP-WROOM-02D and ESP-WROOM-02U module reference design resources, including schematics, PCB layout, gerber files, and BOM lists. Here an 8-bit resolution is used. This documentation helps developers to get started with ESP RainMaker and provides all the related detailed information. When using SD.begin(), the default is to connect the SS pin of the Arduino SPI to the CS enable selection pin of the SD card. It supports Arduino, IDF (linux), micropython etc. You will only be emailed about this product! Function program: Show "DFRobot" and "20220828" on the display. This document introduces the specifications of ESP32-S2-WROOM and ESP32-S2-WROOM-I hardware, including an overview, pin definitions, functional description, peripherals, electrical characteristics, etc. This document introduces the ESP-NOW technology developed by Espressif. FireBeetle was originally designed to be a high-performance and more Mini Arduino open-source development board series. The ESP32-Azure IoT Kit Hardware Design Guidelines introduces the block diagram, PCB layout and function modules of the development board ESP32-Azure IoT Kit. cspin, the Arduino pin connected to the SD card CS pin. The ESP32 series consist of a Tensilica Xtensa LX6 32-bit, dual-core microprocessor(has two processors) running . This document introduces the hardware specifications of ESP-WROOM-S2. There are a large number of detailed tutorials and thousands of easy-to-use Gravity peripherals that provide you with the simplest way to program. on ESP32. True if the file is a directory, false if it is not. The hardware design guidelines give advice on how to integrate ESP32-S3 into other products. 2. . Equipped with 16MB outer SPI flash memory, ESP8266 is available for programs and firmware storage. Return value: the number of available bytes. Note: FireBeetle 2 and FireBeetle pins and sizes are not compatible, and neither are the expansion boards. libat_core.a is AT Command Core, and it is the core of AT command, including the default AT instruction set, the AT command parsing, execution and responding. The following program implements functions such as accessing SD card, manipulating files and folders, including reading and writing files. You may also checkBluetooth microcontrollor selection guide for more information. Return value: None. This user guide provides information on ESP32-C3-DevKitC-02, an entry-level development board based on ESP32-C3-WROOM-02 module. This document provides the specifications of ESP32-C3 chip series. In this section, we will obtain the ambient light intensity by driving LTR390-UV light sensor based on the default I2C configuration. Schematics, PCB layout, gerber and BOM files of ESP32-S2-SOLO-U. And we can use the value between 0 and 255 (2 to the power of 8) to control the LED brightness. [[currency]][[togetherChouseinfo.price]] Copy the key at the position shown below in the diagram. This user guide provides information on ESP8684-DevKitM-1, an entry-level development board based on ESP8684-MINI-1 module. This document is the API reference for ESP8266_NONOS_SDK_V2.2.0. The number accumulates every time your press the button, as shown in the figure below. There should be one URL for each line. The display shows DFRobot" and "20220828" when all ready. The two DACs can be used as reference voltage. V shaped gilded I/O interface, can be sewn on clothesdirectly. Return value: a boolean value, true if initialization is successful, false if initialization fails. Returns -1 if there is no readable data. FireBeetle ESP32 models include onboard circuitry to monitor battery voltage of a battery connected to its JST-PH2. When using the SD library, the serial monitor does not show any print output or displays a connection failure after uploading the program. This document describes known errata in ESP32-C3 series of SoCs. Step 5. The FireBeetle ESP32-E supports Arduino programming and will support Scratch graphical programming and MicroPython programming. Program function: Burn the routine, use the pin IO4/D12 as a touch button, and return the touch value through the serial monitor. About how to use the LTR390-UV light sensor, please refer to the LTR390-UV Ultraviolet Light Sensor Wiki. FireBeetle-ESP32. This user guide provides information on ESP32-S2-DevKitM-1(U), an entry-level development board based on ESP32-S2-MINI-1(U) module. If triggers are triggered, actions set by users will be executed. Improvement: Changed the minimum baud rate supported by the CAN module from 25 kHz to 12.5 kHz. This user guide provides information on ESP32-S2-Saola-1, a small-sized ESP32-S2 based development board produced by Espressif. Otherwise, it will not be possible to open two serial ports. The power consumption can be reduced to 13 A after controlling the maincontroller to enter the sleep mode through the program. Quick flash when powered by USB, and no battery connected. This document provides the specifications of the ESP32-S3 series of chips. An ESP32 and 2.9", 4.2" or 7.5" ePaper Display reads weather station data from 433MHz module and displays it on E-paper Display - ESP32-e-Paper-Weather-Display-433MHz-weather-station. This application note describes the recommended placement of the antenna on a host board to ensure optimal RF performance. Hardware . PWM (Pulse Width Modulation) is a very effective technique to control analog circuits using the digital output of MCU. Please find it in the "help" folder of the zip file. V3.2-r1.0 You should get a result similar to figure 8 after the upload is finished. When the program is uploaded, press down the button connected to pin D7, the on-board LED turns on; Release, it goes off. The default configured pins can be seen in the pinout diagram. This document introduces the specifications of ESP32-WROVER-E and ESP32-WROVER-IE hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. The following example code defaults to STA mode. Not much battery capacity being used. This document introduces the specifications of ESP8685-WROOM-01 hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. [[miniCur.nowCur]], Bluetooth microcontrollor selection guide, ESP32 Deep Sleep Tutorial for Low Power Projects, ESP32, more powerful than any other Arduino, Controlling Air Conditioner temperature automatically with ESP32. And both USB and external DC can charge the Lipo battery directly. After the program is successfully uploaded, the on-board RGB LED switches between red, green, blue and randomly mixed colors every second. This digital representation can then be processed, manipulated, computed, transmitted or stored. Practically, the difference between previous Firebeetle ESP32 (SKU:DFR0478) and ESP32-E (SKU:DFR0654) did not matter, because I looked up the GPIO / Pin definitions from the DFRobot schematic and Wiki and did not use the Pin numbers like D<number>. Return value: a boolean value, true if the file is successfully removed, false if the file removal fails. Schematics, PCB layout, gerber and BOM files of ESP32-S2-MINI-1. Cannot retrieve contributors at this time. The board supports WiFi and Bluetooth dual-mode communication and features an onboard charging circuit with easy-to-use . The new ESP32-E FireBeetle supports WiFi and Bluetooth dual-mode communication, has ultra low power consumption and even includes an on-board charging circuit so you can power it with a lipo battery (and charge it over USB-C). . Schematics, PCB layout, gerber and BOM files of ESP8266-DevKitC-V1. This user guide provides information on ESP8266-DevKitS-development board. To obtain the GPIO status of the touch sensor, just need to call the touchRead function, whose function prototype is: uint16_t touchRead(uint8_t pin). A: First off all, make sure the Network connection is in good condition. You can also use begin(cspin) to specify a pin to connect to the CS enable selection pin of the SD card, but you need to ensure that the SS pin of the SPI is in output mode, otherwise the SD card library will not work. This document introduces the specifications of ESP32-S2-WROVER and ESP32-S2-WROVER-I hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc. In DTIM10, the full power consumption to maintain WiFi connection reached to 1.2mW. When the program is uploaded, open serial monitor and you can see that the UV sensor is constantly collecting the current light intensity value. data, the data to be written (can be of type char, byte, int, long, or String). The electric current is just 10A in the deep-sleep mode. AT Instruction Set based on ESP8266_RTOS_SDK. This document introduces how to use the DownloadTool. setCallbacks() Description: Set callbacks for characteristic, setValue() Description: Set the value of the characteristic, getValue() Description: Get the value of the characteristic. Return value: returns an object corresponding to the opened file. Integrate a Dual-Core ESP-WROOM-32 module. Now make it blink by programming. So, I am going to use it here. -.02V). This document introduces the specifications of ESP8285, including pin definitions, functional description, electrical specifications, package information, etc. - Return value: The next byte or character. - data, the data to be written (can be of type char, byte, int, long, or String). This document provides the specs of ESP-PSRAM64 & ESP-PSRAM64H. Smart Compost Bin Monitoring System -Based on 4G IoT and SHT20. 5. The guidelines outline recommended design practices when developing standalone or add-on systems based on the ESP32-C6 series of products. 1.Click to download microPython firmware. The guidelines outline recommended design practices when developing Audio products based on the ESP32. You can install FastLED by referring to the method for installing the SDK of FireBeetle 2 ESP32-E before, as shown below, click "Install". This user guide provides information on ESP32-S2-Kaluga-1 kit, a small-sized ESP32-S2 based development board produced by Espressif. Schematics, PCB layout, gerber and BOM files of ESP32-MINI-1, Schematics, PCB layout, gerber and BOM files of ESP32-MINI-1U, Schematics, PCB layout, gerber and BOM files of ESP32-PICO-MINI-02, Schematics, PCB layout, gerber and BOM files of ESP32-PICO-MINI-02U. Here, we will demonstrate the operations provided by Light Blue on an iPhone. Schematics, PCB layout, Gerber and BOM files of ESP32-Sense Kit, the touch sensor development kit based on ESP32. FireBeetle 2 ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth), Smart Compost Bin Monitoring System -Based on 4G IoT and SHT20, ESP32 Dual-core low power main controller, 10uA power consumption, Onboard Charging Circuit and PH2.0 lithium Battery Interface, Processor: Tensilica LX6 dual-core processor (One for high-speed connection; one for independent application development), Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (802.11nspeed up to 150 Mbps), A-MPDU and A-MSDU Aggregation, support 0.4us guard interval), Bluetooth Protocol: Bluetooth v4.2 BR/EDR and BLE standard compliant, On-chip Clock: 40MHz crystal, 32.768KHz crystal, Connector: FireBeetle V2 series compatible, FireBeetle 2 Board ESP32-E with Header x1. After that, connect your FireBeetle 2 ESP32-E to your computer. It supports WiFi and Bluetooth dual-mode communication and features a small size, ultra-low power consumption, on-board charging circuit, and easy-to-use interface, which can be conveniently used for smart home IoT . FireBeetle 2 ESP32-E supports Arduino programming and will support Scratch graphical programming and MicroPython programming very soon. Its member functions are as follows: Description: Initializes the SD card library and SD card. The ESP-EYE development board reference design resources, including schematics, PCB layout, gerber files, and BOM lists. 4.Select the ESP32-S3 main controller, than Press Boot, press RST and release both, then try burning again. 690 Bibo Road Block 2 Suite 204, Zhangjiang Shanghai, China, This document introduces the specifications of ESP32-MINI-1. This document introduces the specifications of ESP32-S3-WROOM-2 hardware, including overview, pin definitions, functional description, and electrical characteristics, etc. Espressif ESP-SR helps you build AI voice solution based on ESP32 or ESP32-S3 chips. Features ESP32 dual-core low power maincontroller with 10A power consumption; WiFi+Bluetooth 4.0 dual-mode module . Description: Read the current byte but does not move to the next byte. Description: Closes the file and ensures that the data has been completely written to the SD card. It is recommended not to multiplex the pin IO0/D5, IO1/TXD and IO3/RX since they will be occupied when using USB-related function. When disconnected, static power consumption can be reduced by 500 A. I had some ideas for other sensors like a leak monitor, current monitor for a freezer, and some garden sensors. Hope this post from Arduino helps. mode (optional), the mode to open the file. A: Press RST button to reset and try again. FireBeetle will support the various development environment like MakeCode, Mind+, Pingpong and MicroPython (to be improved soon), which allows you to program your hardware by graphical programming, C language, Python or JS. It is required to install ESP32 board in Arduino IDE for using FireBeetle 2 ESP32-E for the first time. Syntax: file.print(data) or file.print(data, BASE). Description: Output data to a file and add a newline. This document provides information on ESP32-S2-DevKitC-1 development board. When the angle sensor is rotated, the printed value changes accordingly. - Configure Parameters in Arduino Code. Frequency range: 2.4~2.5 GHz. This document introduces the ESP32 BT&BLE dual-mode bluetooth. Enable external interrupt(attachInterrupt(pinfunctionmode)), the parameters are as follows: STA mode: The ESP32 module connects to the Internet through a router, and remote control of the device is achieved through the Internet via a mobile phone or computer. If This Then That (commonly known as IFTTT, /ft/), is a web-based service that allows users to create chains of conditional statements triggered by changes that occur within other web services. This is documentation of ESP-ADF, the framework to develop audio applications for ESP32 chip by Espressif.