Microcontroller With Wifi And Bluetooth

Controlling Led Using Bluetooth Mobile Application:

M5Stamp C3 Review: RISC-V based ESP32-C3 WiFi and Bluetooth Enabled Microcontroller Board

Now let us get our Android application ready. Download the application called Bluetooth Terminal from the App store or use this link. Once the application is downloaded and installed, turn on your PIC perf board which we are using since beginning. The small LED light on your Bluetooth Module should be flashing to indicate that it is powered on and is actively looking for a phone to establish a connection.

Now get into the Bluetooth Settings of your phone and search for new Bluetooth device you should be able to see the name HC-05 or HC-06 based on your module. I am using HC-06 hence my phone shows the following display. Then try paring with it and it will ask for a password. Enter the password as 1234 and click OK as shown below.

After the paring is successful, open the Bluetooth Terminal application that we just installed. Get into the settings option and select Connect a device Secure as shown below. This will open a pop box where all our paired devices will be listed as shown below. Select the HC-05 or HC-06 module.

Once the connection is established, the light on the Bluetooth module which was flashing so far must have become constant to indicate that it has successfully connected to your mobile. And we should get the introductory message from our Program like shown below.

Now press 1 to turn on the LED light and press 0 to turn off the light. The complete working will be shown in the Video. Your mobile screen will look something like this shown below.

Hc05 Bluetooth Module With Pic Microcontroller

Bluetooth module HC 05 interfacing with pic microcontroller: Hi Everyone, In this article I will explain you how to interface Bluetooth module HC 05 with pic16f877a microcontroller or any other microcontroller like 8051, AVR and Arduino. It is very easy to communicate with android mobile through Hc 05 Bluetooth module. It has many applications and this Bluetooth module Hc 05 is very popular inengineering students. Many students use this module in their microcontroller based projects. Examples of most popular Bluetooth based project are robot control through android mobileand home automation system. You can also use it to measure solar energyon your sell phone through android application.

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Using Serial Bluetooth With A Microcontroller

In a previous article, I developed microcontroller-based hardware and software to control a matrix of 8×8 RGB LEDs. I thought since I still had that hardware laying around, I would use it as a test bed for experimenting with Bluetooth. I had never done anything with Bluetooth before, so I thought it was about time I did.

As you may know, Bluetooth is a standard for the short-range wireless interconnection used in cell phones, computers, and other electronic devices. According to Wikipedia, It was originally conceived as a wireless alternative to RS-232 data cables. Of course, today, Bluetooth is used for many purposes, including:

  • Hands-free control and use of cell phones.
  • Streaming of music for the home, in cars, and even for wireless headphones.
  • Streaming of data for file transfers between phones and PCs, and PC to PC.
  • For wireless keyboards, mice, and printers.
  • For wireless tethering, where tethering is the act of sharing a devices network connection with another device. Most tethering is done via Wi-Fi, but it can also be done with Bluetooth. An advantage of Bluetooth tethering is that it requires much less power than the equivalent Wi-Fi connection.
  • And yes, streaming of serial data as an alternative to RS-232 cables.

It is this last purpose that we will be experimenting with in this article.

Code Of Bluetooth Module Interfacing With Pic Microcontroller

Beetle ESP32 WiFi Bluetooth Microcontroller

Below is code to send different strings to BT module every one second.

int voltage, current, power void main }

So this is how we can interface HC-05 Bluetooth module with pic microcontroller. you can easily use it in your embedded systems projects. If you have any issue let me know with your comments. thanks.

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Introducing Microchip’s Wfi32 Wi

This video introduces Microchips first Trust& GO Wi-Fi® 32-bit MCU, which has market leading MCU functionalities and is pre-provisioned for cloud platforms.

Curiosity Board Garage Door Demo

WFI32 Garage Door Demo

This garage door demo with voice commands is based on our WFI32 Out-of-the-Box Curiosity Board Demo developed with MPLAB® X IDE and MPLAB Harmony v3.

WFI32 Wi-Fi® MCU Module Development Tools Introduction

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Our highly integrated WFI32 Wi-Fi® MCU module is a safe, powerful and reliable IoT platform that can be used to design industrial IoT systems that require high-performance MCU capabilities and a robust and safe IoT connection.

WFI32 Out of the Box Curiosity Board Demo

Can Communication Via Wi

June 28, 2021 By Redding Traiger

Since its launch five years ago, the Anybus Wireless Bolt has provided thousands of industrial applications with wireless Ethernet access. With a rugged and unique form factor for bolt-on-machine mounting, it is today proven and trusted in the most demanding industrial applications. Use cases vary from warehouse installations and AGVs to the manufacturing of food, underground mining, or rough outdoor applications. Building on the success, HMS now launches the Anybus Wireless Bolt CAN, featuring CANbased communication to the host equipment.

The new Anybus Wireless Bolt for CAN enables CAN-based, heavy-duty machinery and applications to transfer CAN data over a robust wireless link. Wireless communication is established either over a fast Wi-Fi connection or a reliable Bluetooth link. The CAN data is transported over a TCP/IP link which enables other standard Wi-Fi infrastructure to also connect to the wireless link if desired.

A typical use case is wireless access to CAN data from an industrial vehicle, such as a bulk material transport truck. For example, with the Anybus Wireless Bolt CAN, J1939 CAN data is easily communicated to a handheld tablet which gives the operator full control and visibility of the ongoing bulk material fillingprocess.

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Developing Applications For The Esp32

The usual way to develop any embedded system is to first choose the proper microcontroller, or microcontroller module, that fits the desired hardware requirements and, just as importantly, has the proper software development support.

A prototype hardware platform to test the application code is developed. Then, the application software development process can begin.

Assuming that the ESP32 has been chosen as the microcontroller module, the next step is to actually set up an environment where application code can be developed and tested.

Developing an application for an embedded system is an iterative process that usually requires a setup on a cross-development platform whereby the code can be written, complied, linked, and loaded into the processor.

After hardware testing, the whole process is repeated until you achieve the final performance requirements.

The entire process is usually carried out in an Integrated Development Environment that, at a minimum, should provide the following: A text editor to write the application code a compiler/linker/locater and a loader to download the compiled binary code to the proper physical address segments in the target processor.

The IDE also typically includes some kind of feature that automates the whole cycle.

The official way of setting up this environment, as recommended by Espressif, and named IDF for IoT Development Framework, is given in this link.

void setup

void loop

// Simple LED flash functionvoid ledFlash}

Applications Of Bluetooth :

ESP32 Wireless Microcontroller – with added GUI

There are many applications of Bluetooth modules but major applications of Bluetooth is given below :

  • In mobiles , computers , laptops and all other smart computers.
  • wireless Audio and video controllers
  • wireless mouse and keyboards
  • Wireless head phones and Microphones
  • there are man other applications of Bluetooth, Just Google to know more about applications of Bluetooth.

Bluetooth module is work as master or slave. There are many Bluetooth modules available in market which are either master/slave or both. Master Bluetooth module can send or receive data from other Bluetooth modules. But slave Bluetooth can only listen to master Bluetooth module. It depends on your application which Bluetooth module you need for your project.

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Use In Commercial Devices

  • Alibaba Group‘s IoT LED wristband, used by participants at the group’s 2017 annual gathering. Each wristband operated as a “pixel”, receiving commands for coordinated LED light control, allowing formation of a “live and wireless screen”.
  • DingTalk’s M1, a biometric attendance-tracking system.
  • LIFX Mini, a series of remotely controllable, LED based light bulbs.
  • Pium, a home fragrance and aromatherapy device.
  • HardKernel’s Odroid Go, an ESP32 based handheld gaming device kit made to commemorate Odroid’s 10th anniversary.
  • Playdate, a handheld video game console jointly developed by Panic Inc. and Teenage Engineering.

Circuit Diagram And Hardware Setup:

Circuit connections for this project is very simple, we simply have to power up the Bluetooth module and connect the Tx to the 26th pin of PIC and Rx to the 25th pin of PIC as shown in the circuit diagram below:

Now let us proceed to the hardware. Once the connection is done it should look something like this.

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Bluetooth Module Hc 05 Interfacing With Pic Microcontroller

Bluetooth module interfacing with pic microcontrollers, in this article I explained how to interface Bluetooth module with microcontrollers, What is Bluetooth ? Types of Bluetooth? How Bluetooth communicate with other devices? and How to select most suitable Bluetooth module for your project in which you want to use Bluetooth for wireless communication. Many of you are already familiar with Bluetooth and its working. Because you use Bluetooth daily for sending and receiving data from one device to another in your mobile phones or computers. But Bluetooth have many other application in wireless audio and video controllers.

  • Code of Bluetooth module interfacing with pic microcontroller
  • Key Specifications And Features:

    FireBeetle ESP32 IOT WiFi Microcontroller (Wi

    Main processor: Tensilica Xtensa 32-bit LX6 microprocessor

    Cores: All versions of the ESP32 series are dual-core except for ESP32-S0WD, which is single-core.

    Clock frequency: up to 240 MHz

    Performance: up to 600 DMIPS

    Ultra low power co-processor: allows you to do ADC conversions, computation, and level thresholds while in deep sleep.

    Figure 5 is a functional block diagram of this SoC taken from its datasheet, which is available on the Espressif Website.

    Figure 5 Functional block diagram of the ESP32 from the datasheet

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    Bluetooth Module Hc 05 Pin Out

    pin out of Hc 05 module is given below. As you can see it has six pins. All these pins has specific functions. You can check data sheet of this module to know more about functionalities of these pins. you will need to use only Vcc, ground, TXD and RXD pin of this Bluetooth module HC 05 to interface it with pic microcontroller. Explanation of all these pins are given below:

    • KEY pin: This pin is used to enter AT commands. If this pin is connected with ground or no connection, you can simply use it pair it with devices. if it is connected with high logic, it will use to enter in AT commands.This pin is used to remove information stored in hc 05 bluetooth module about paired devices.
    • State pin: It is of no use. It just shows the status of device.
    • Vcc pin: It is a power supply pin. You should connect 5 volt with this pin.
    • Ground pin: Connect ground pin of power supply to this pin.
    • TXD pin: This is data transmission pin. You should connect RXD pin of microcontroller with this pin.
    • RXD pin: This is data receiver pin from microcontroller. you should connect TXD pin of microcontroller with this pin.

    Wireless And Mcus: Bluetooth Wi

    July 24, 2017 By Scott Thornton

    Most of the things in the Internet of Things will include processors, sensors, and a wireless communication path to the Internet, and all likely will be limited to a small power budget. Which one should you use? Bluetooth, Wi-Fi, and ZigBee are different wireless communication protocols that are often accessible as modules for easy MCU interfacing. Compare them in the table below to best fit project needs. The longer reach of Wi-Fi is the reason why Wi-Fi is a dominant choice.

    Its easier to find Wi-Fi either built-in to a development board for your favorite MCU or modules that can be used with a dev board. Bluetooth is next in terms of ecosystem abundance, and Zigbee is last. If you must connect to a smartphone you should use Wi-Fi or Bluetooth. Zigbee modules are well-loved by those who use them due to ease-of-use and reliability, but Zigbee has a smaller market, therefore fewer projects, tools, and other devices out in the wild.

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    Use In Industrial Devices

    • TECHBASE’s Moduino X series X1 and X2 modules are ESP32-WROVER / ESP32-WROVER-B based computers for industrial automation and monitoring, supporting digital inputs/outputs, analog inputs, and various computer networking interfaces.
    • NORVI IIOT Industrial Devices with ESP32-WROVER / ESP32-WROVER-B SOC for industrial automation and monitoring with digital inputs, analog inputs, relay outputs and multiple communications interfaces. Supports LoRa and Nb-IoT as expansion modules.

    Simplify Your Design & Development Process

    Adafruit’s Bluefruit EZ-Key – Easy Bluetooth for makers!

    Whether you are working on a simple design or building a complex system, you should have confidence in your designs. Our extensive and easy-to-use hardware and software tools, design resources and exepert engineers are here to help you get to market quickly with your Wi-Fi-connected application.

    Hardware design reviews for SimpleLink Wi-Fi devices

    The CC3XXX Wi-Fi hardware design review process provides a way to get in touch, one-on-one, with a subject matter expert that can help review your design and provide valuable feedback. Before requesting a review, it is important to review the technical documentation and design &

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    Introduction To Bluetooth Module Hc 05

    So lets start with basic introduction of Bluetooth module Hc 05. It has single chip on board integrated circuit based on CMOS technology.It has upto +4dBm transmission power.It has wide operating voltages between 3.6 to 6 volt. Default baud rate of this device is 9600. But you can change it according to your requirement by using AT commands. I will explain later how to use AT commands of this bluetooth module. HC 05 work on serial communication. It communicates with microcontroller through UART communication. So you should know how to use serial communication of pic microcontroller. If you know serial communication programming of pic16f877a controller you can easily interface this module and write a program in C.

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    A Deep Dive Into Low Power Wifi Microcontrollers

    The Internet of Things is eating everything alive, and the world wants to know: how do you make a small, battery-powered, WiFi-enabled microcontroller device? This is a surprisingly difficult problem. WiFi is not optimized for low-power operations. Its power-hungry, and theres a lot of overhead. That said, there are microcontrollers out there with WiFi capability, but how do they hold up to running off of a battery for days, or weeks? Thats what is exploring in a fantastic multi-part series of posts delving into low-power WiFi microcontrollers.

    The idea for these experiments is set up in the first post in the series. Basically, the goal is to measure how long the ESP8266 and ESP32 will run on a battery, using various sleep modes. Both the ESP8266 and ESP32 have deep-sleep modes, a sleep mode where the state is preserved, a CPU only mode that turns the RF off, and various measures for sending and receiving a packet.

    The takeaway from these experiments is that a battery-powered ESP8266 cant be used for more than a week without a seriously beefy battery or a solar panel. Run times are much longer with an open network as compared to a secured network, and that security eats up a ton of power: connecting to a secure network every now and again means your ESP might only run for a day, instead of a week.

    Rakstore W801 Microcontroller 32 Bit Wifi Bluetooth Dual

    NETduino 3 WiFi (.NET

    4-16 days

    • W801 chip is a WiFi Bluetooth dual-mode SoC chip, supports IEEE802.1 1b/g/n WiFi and BT/BL.E4.2 Bluetooth protocol, supports TEE security engine and a variety of hardware encryption and decryption algorithms.
    • W801 built-in DSP float Point operation unit, support code security authority setting, support firmware encryption storage, firmware signature, security debugging, security upgrade and other security measures to ensure product security features.
    • It is suitable for the Internet of Things fields such as smart home, smart toys, industrial control, and medical monitoring.

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    Development And Other Boards

    Development & break-out boards extend wiring and may add functionality, often building upon ESP32 module boards and making them easier to use for development purposes .

    ESP32 SoC incorporated directly onto development board no module board used.

    Programming languages, frameworks, platforms, and environments used for ESP32 programming:

    • Visual Studio Code with the officially supported Espressif Integrated Development Framework Extension
    • Arduino IDE with the ESP32 Arduino Core
    • MicroPython A lean implementation of Python 3 for microcontrollers
    • Espruino JavaScript SDK and firmware closely emulating Node.js
    • Lua Network/IoT toolkit for ESP32-Wrover
    • Mongoose OS an operating system for connected products on microcontrollers programmable with JavaScript or C. A recommended platform by Espressif Systems, AWS IoT, and Google Cloud IoT.
    • mruby for the ESP32
    • Zerynth Python for IoT and microcontrollers, including the ESP32

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