Hc 05 arduino pinout. The Sensor Shield v5.

Hc 05 arduino pinout The HC-05 bluetooth module is a familiar Bluetooth module that allows you to add dual-channel (full-duplex) wireless connectivity to your project. e. But HC-05 is This circuit connects an HC-05 Bluetooth Module to an Arduino UNO for wireless communication. This baud rate will work with serial in Arduino as well as in android Bluetooth libraries/app without any problem. 2010 1 Tech Support: info@iteadstudio. 3V. Pinout. /Arduino board, arduino uno used in this tutorial, other boards should work to. Comparing it to the HC-06 module, which can only be set as a Slave, the HC-05 can be set as Master as well which enables making a communication between two separate Arduino Boards. Typically, you'll connect the HC-05 module's TX pin to Arduino's RX pin, and the HC-05's RX pin to Arduino's TX pin. Pinout # Pin Function; 1: State: It can be used as a feedback to check if Bluetooth is working properly. In short: The module works on my Arduino Uno R3 without problems. From https HC-05 Bluetooth module not showing up for pairing. HC-05 Bluetooth Module User’s Manual V1. Identifying your HC-05 Bluetooth module and understanding its pinout is crucial for successful configuration. Follow the schematic diagram below to connect all the devices together. Module HC-05 có một số chân quan trọng để kết nối với các thiết bị khác: VCC: Chân nguồn điện, Arduino với HC-05: USB Serial với HC-05: Cấu Hình Module HC-05. Now we will configure the HC-05 with the help of AT command. Hi, I am trying to to collect temperature/humidity with sensor DHT22 and visualize data via Bluetooth (module HC-05). Note: Rx pin receives a 3. I'm using two Arduino UNO boards, two Arduino Bluetooth module HC - 05 one configured as Master and the other one configure as Slave and also an this video is about bluetooth module ,some devices base on bluetooth module system, it is also shows how to connect HC-05 Bluetooth module to arduino board Hi everyone! I have a Bluetooth Module Hc-05, but it has a button and "EN" Pin instead of a "Key" Pin and i want to configure my module, but i dont know how to connect it to my Arduino Uno. 6V and 5V. 3V) GND: Ground pin; TXD: Transmit data; Now, let’s interface the module with Arduino and communicate with Android Phone. 3 | P a g e 1. There is an "About the _____ category" topic at the top of each HC-05 PinOut (Right) : KEY: If brought HIGH before power is applied, forces AT Command Setup Mode. The HC-05 module has two serial input pins, both of which will be used for data communication. HC-05 Pinout. It has 6 pins for connections. This article mainly covers pinout, datasheet, specifications, applications, Arduino connection, and other details about HC-06 Bluetooth Module. 16 Page 3 of 16. 0 is compatible with Arduino UNO and other boards with the same pinout, such as the Arduino Download scientific diagram | Pin Diagram of HC-05 Module from publication: Wireless Arduino Programming Board | Arduino is an open-source electronics platform based on easy-to-use hardware and Connect the Arduino to the host computer. HC-05 module pin description. I have no issue getting in to AT mode but I have found that some commands only seem to work when pin 34 is HIGH. Arduino This pinout diagram provides indications of all pins. Unfortunately I can't get the module to work on my Arduino Mega where i need it. 6. I pluged the cables in both Arduinos in the same slots. I can't remove the LCD, it is the only way that I can see what the AT commands return. Any other usb to ttl converter will do too. Get the HC-05 working first. Before we connect it up, let‘s quickly go through what each pin on the module does: VCC: Power supply voltage input (3. Our team has gotten a set of DSD Tech bluetooth boards - DSD Tech Units: HC-05 HC-08 HM-19 We are using the Arduino reference demo, which works fine for the HC-08 & HM-19 @ 9600 baud. But we need to shift the transmit voltage level from microcontroller to RX of HC-05 module. There's a circuit diagram of my current circuit attached. 0 Communication between Arduino UNO and PC via Bluetooth. 1. 2: RXD: HC-05 Bluetooth Module Pinout. On every tutorial I see, they always use a resistor when using the Bluetooth Module HC-05 on an Arduino Uno, and although I understands it, the problem is that they uses a breadboard. 0, Setting -> turn on bluetooth. It is a low-cost and easy-to-use solution. USB to TTL converter : I used PL2303HX usb to ttl converter. HC-05 Bluetooth Module Example with Arduino. Robot Robo Car Android Bluetooth Remote Control Project Using 89c2051 Microcontroller And Hc 05 Module. I need to be able to switch it off because this is a battery-powered application. Although I am using a breadboard right now, my problem is I will remove the breadboard once I'm done with programming it. I have a problem that I've been trying to solved all this week, but I could not find a solution. The Bluetooth Serial Monitor App is a mobile application that has a User Interface similar to the Serial Monitor of the Arduino IDE. For more information about HC-05 Bluetooth module and how to use it, refer the topic HC-05 Bluetooth module in the sensors and modules The Pinout: The module available at the EE Store has 6 pins as shown below: Pin Funtions. what i have done : -Check the connection if the connections are connected using multitester -Check the other Serial pins ( 18, 19) and so on. VCC Pin. The HC-05 Bluetooth module talks to the host device over serial communication. 17: 9996: Hi, I have a hc-05 module ofr my arduino, I want to add an antenna DIY, i know that i have to usa copper wire, but with what length? Thx. 3V HIGH level: OK for Arduino; RXD: Receive Serial Data from Arduino Serial Transmit As HC-05 Bluetooth module has 3. The wiring looks good. As HC-05 Bluetooth module has 3. EN (Enable): Mode selection pin; VCC: Power supply Cấu hình HC-05 bằng arduino. Using the codes below, i'm HC-05+Arduino+Android. Name: HC-05; Password: 1234 (or 0000) Type: Slave; Mode: Data; Baud Rate: 9600 with 8 data bits, no parity and 1 stop bit; Circuit Diagram for Interfacing HC-05 Bluetooth Module with Arduino So this is a HC-05 bluetooth module. On the basis of range communication networks are divided into three categories known WAN (Wide Identifying Your HC-05 Bluetooth Module and Pinout. The HC-05 is a class Hello all. Obviously pins 0 and 1 and 14 through 19 are marked as such. I tried additionally TX1 and RX1, but it didn't work. thanks. com 06. The default baud rate of HC-05 is 38400. To do this, HC-05 has AT commands. We will also study HC-05 Pinout, Datasheet, Features &amp; Projects Overview of Bluetooth Serial Monitor App. If using the connection on pin 34, remove power, connect pin 34 to +3. This demo does not work for the HC-05 @ 38400 baud, we have tried with & without pressing the mode button. I n this blog, we will discuss the interfacing of HC-05 with Arduino board. Connect 5V with BT. Bluetooth Module. Effective open ground distance is 10 meters (CLASS 2) 5. What is Bluetooth Module HC-05? The Bluetooth Module HC-05 is a popular and frequently used Bluetooth module for electronics projects and applications. Using soldering, I attached a wire from pin 34 to a voltage divider (1K Hello I have a basic question regarding these sensors that are connected to a Arduino UNO board: Pins Trig and Echo of HC-SR04 Ultrasonic Sensor PCM: Pins RXD and TXD of Bluetooth HC-05 PCM: I am starting with Arduino. Let’s start by taking a closer look at the pins of the Hc Learn to interface HC-05 with Arduino including hardware overview, pinout, wiring, Arduino code, connecting to the smartphone and Bluetooth-controlled relay project. HC-05 is used for a transparent wireless serial connection setup. Bluetooth is a popular wireless technology for enabling wireless transmission between mobile devices. There are multiple types of devices Master Mode is useful when the HC-05 needs to control or manage other devices. The HC-05 module communicates through a serial UART interface, but Arduino UNO's built-in serial interface is used for uploading code. 3 V level, so, no need to shift transmit level of HC-05 module. I want to control 2 digital outputs via Android phone with ''Arduino bluetooth controller'' application. The HC-SR04 is powered by the Arduino's 5V output and uses two digital PWM pins (D7 for TRIG and D6 for ECHO) to . HC-05 Bluetooth module iteadstudio. HC 05 Bluetooth module pinout. The HC-05 Bluetooth module is a serial communication module that has a total of HC-05 Bluetooth Module: Pinout, Equivalent, Datasheet, HC-05 Arduino. Check that the Red-LED of HC-05 blinks at 2-sec interval indicating AT Mode. You can use this module to communicate between two microcontrollers like Arduino or communicate with To interface the HC-05 Bluetooth module with the Arduino's limited serial interfaces, we use pins 2 and 3 of the Arduino as custom Rx (receive) and Tx (transmit) pins through software serial When we want to change settings of HC-05 Bluetooth module like change password for connection, baud rate, Bluetooth device’s name etc. Do I still really need to put a resistor? Or it can HC-06 is a Bluetooth module designed for establishing short-range wireless data communication between two microcontrollers or systems. HC-05 Bluetooth module is a very easy-to-use Bluetooth to serial converter that connects microcontrollers (like Arduino) to other Bluetooth The HC-05 is a popular module which can add two-way (full-duplex) wireless functionality to your projects. Support standard baud The HC-05 is powered by the Arduino's VIN pin and is grounded to the Arduino's GND, enabling wireless communication capabilities. Hc 05 Bluetooth Module Analysis Arxterra. You can interact with the Arduino Nano as if it were connected to a PC's Serial Monitor, without needing to add any special code for Bluetooth Module HC-05 Pinout, AT Commands & Arduino Programming Introduction It is used for many applications like wireless headset, game controllers, wireless mouse, wireless keyboard, and many more consumer applications. The HC-05 module is very straightforward and simple to use. Can please someone help me configuring and connecting it. The HC-05 comes with multiple pins and indicators, which helps to control different operations and view The pinout of HC-05 Bluetooth module, its interface with Arduino UNO and their simulation in Proteus is presented in this post. As you can see I am using a P-CH Mosfet as a high side switch to toggle VCC of my HC 05. The HC-05 module typically features a label HC-05 Pinout. 2. Arduino Sketch: ESP8266 LED Control with HC-05 and Android App. I HC-05 Bluetooth Module Pinout. println(integer); Changing the name and pincode of the module, however, isn't working. The HC 05 Bluetooth module is a compact and powerful wireless communication module with several notable technical specifications. I have now started to play experiment with the HC-05 as a master device. 3. HC-05 pinout. To do that you can use the voltage divider rule. Hey everyone, I've been trying to switch a HC-05 Bluetooth module on and off with a 3,3V Pro Mini. Pin Description State : We will use pins 10 and 11 of the Arduino to connect the HC-05 and use the SoftwareSerial library to communicate with thank you! i know its a great datasheet and their is lots of information online about this, but i seriously spent a half hour looking for that image lol. Within these lines, discover the inner workings of HC-05, unveiling its myriad functions and features Arduino Pro Micro TxD (Pin 0) -> HC-05 RxD HC-05 TxD -> Arduino Pro Micro RxD (Pin 1) I have two Serial ports available for the HC-05 COM30(incoming) and COM31(Outgoing). Does anybody else have modules like this? I am building an rc car for a school project and im struggling to find some information on HC-05 and 06. I want to integrate a bluetooth signal between the two MCUs so that this process can happen wirelessly. I moved your topic to a more appropriate forum category @bhavinkateshiya. LED light indicates Bluetooth connection status. What The connection setup between the HC-05 module and Arduino UNO is shown in image. I can visualize data from Serial Monitor in IDE but data do not seem to be sent to the Module. On a iPhoneSE iOS v11. The HC I bought a HC-06 and connected to Arduino UNO, the LED is blinking as it should, but the module not showing up on iPhone. 5. 0+EDR (Enhanced The HC-05 is powered by the Arduino's VIN pin and is grounded to the Arduino's GND, enabling wireless communication capabilities. -Changing Some baud rates, ( but my default Since the Arduino’s single serial interface is used for uploading code, we’ll repurpose pins 2 and 3 as the RX and TX pins for communication with the HC-05 Bluetooth module. As you could read on the title I'm trying to do a Bluetooth car controlled via joystick. HC-05 arduino. VCC This is the power supply pin and is usually connected to a voltage source between 3. But when I connect the circuit to Leonardo the bluetooth comunication doesn't work at all. Vzhledem k velikosti celého modulu je i anténa poměrně In this mode, the HC-05 acts as a transparent bridge between devices (such as between an Arduino and a smartphone) and transmits data over a wireless connection. Hi I'm working on an arduino mega 2560 based robot car with a 5 axis (dof) claw, that i want to control wirelessly using an HC-08 BLE module on the side of the car, and an arduino nano 33 iot based controller glove. I am using Bluetooth Terminal HC-05. Arduino Bluetooth modul HC-05 je komunikační modul, který umožňuje propojit Arduino bezdrátově s dalším zařízením, které podporuje Bluetooth. In short, this module can be used to perform low-cost wireless communication between microcontrollers such as Arduino, TM4C123, Pic Microcontroller, Raspberry Pi, BeagleBone, HC-05 Bluetooth Module Pinout. The HC-06 is a class-2 slave Bluetooth module designed to enable wireless serial communication between microcontrollers (like Arduino) and other Bluetooth-enabled devices. The problem is the baud rate of devices. The following is a list of few of the default settings of the HC-05 Bluetooth Module. The core module uses HC-05 slave module, and the interface includes VCC, GND, TXD, RXD, KEY pin, Bluetooth connection status lead (STATE). 8 5. Tento modul obsahuje Bluetooth ve verzi 2. HC-05/HC-06 Bluetooth module with breakout board. The first MCU takes in three analog inputs from temperature sensors, and outputs a digital high signal. The PIR sensor detects motion and sends a signal to the Arduino, which then communicates via Bluetooth using the HC-05 module. GND This pin is the ground connection and should be connected to the ground of the power supply. Disconnect 5V from HC-05. It is connected to the RX (Receive) pin of the device it communicates with. Also Check : HC-05 Bluetooth Module Arduino RC Car HC 05 Bluetooth Module Technical Specification. To resolve this, we reassign Arduino pins 2 and 3 as software-based Tx and Rx communication lines. Serial port Bluetooth module is fully qualified Bluetooth V2. The LCD Display is connected for power, ground, and I2C communication, allowing it to display data or messages. com HC-05 -Bluetooth to Serial Port Module Overview HC-05 module is an easy to use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup. Configurations The HC-05 Bluetooth module can operate in two primary configurations: Slave Mode and Master Mode . These specifications make the HC-05 a reliable, low-cost and low-power solution for a wide range of Bluetooth communication applications. It means HC-05 is not malfunctioning. Setting Up Bluetooth HC-05 With Arduino: Even though Bluetooth Low Energy Modules available at a reasonable cost, most of these modules are not compatible with existing devices that support the classic Bluetooth. 3V level for RX/TX and microcontroller can detect 3. After 2/3 seconds, release the micro switch. Module Bluetooth HC-05 adalah module komunikasi nirkabel via bluetooth yang dimana beroperasi pada frekuensi 2. 3V LDO, input voltage 3. Bluetooth module HC-05 / HC-06 Arduino pinout, datasheet. Introduction HC-05 Bluetooth Module is an easy to use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup. jpg - Simplify your life Comment connecter le module bluetooth à l'Arduino Envisager de contrôler l'Arduino via le HC-05 depuis un smartphone ou une tablette Android. To use HC-05 Bluetooth module in AT command Understanding the pinout and proper pin connections is crucial for successfully integrating the Hc-05 module into your Arduino projects. Pinout Diagram Description. HC-05 Datasheet - Bluetooth Module, HC-05 pdf, HC-05 pinout, equivalent, replacement, HC-05 schematic, HC-05 manual, HC-05 arduino, data, circuit. Press and hold the micro switch of HC-05. I tried connect it to the arduino uno by the following pinout: (HC05)(Arduino) TX —resistor—> TXD RX —resistor—> RXD -GND —> GND -VCC —> 5V Its all fine until I plug the VCC to 5V, the TXD and RXD light on the Uno shuts, no sign from the module. To simplify our tutorial, we will not use the voltage divider rule but it is recommended to 3. Can any pin be used for Rx and Tx? I am using the SoftwareSerial library in which you can define which pins they are, as in SoftwareSerial BTserial(4, 6); // RX , TX Is there a preferred Alternatively for HC-05, you can use an arduino board. My number one I am installing a HC05 Bluetooth module on to an Arduino Mega and was wonder which Rx and Tx pins I should be using. The HC-05 comes with multiple pins and indicators, which helps to control different operations and view their states through indicators. 3V or 5V depending on the module). Bluetooth to Serial Port Module. 3V signal. EN (Enable): Mode selection pin; VCC: Power supply pin (3. srnet May 1, 2021, 7:15pm 2. The HC-SR04 is powered by the Arduino's 5V output and uses two digital PWM pins (D7 for TRIG and D6 for ECHO) to But we need to shift the transmit voltage level from microcontroller to RX of HC-05 module. This also illustrates the functionality of each pin. Warranty. Today, we will discuss HC-05 Bluetooth Module in detail. The LED on the HC-05 should be blinking quickly at about 5 times a second. In case you cannot find your data sheet try this link: HC 06 Bluetooth module pinout, features & datasheet. Also, ensure that the HC-05 module is powered properly (3. 3V otherwise your Rx pin may be damaged. We are trying the "AT" command, getting 'OK' from the HC Embark on a journey into the realm of wireless connectivity with the HC-05 module, a versatile and powerful component driving modern communication systems. Bluetooth Pinout. It is often used in applications that require wireless communication between microcontrollers, smartphones, PCs, and other Hello everyone, I hope you are doing well. The backplane is equipped with anti-inversion diode, with 3. EN (Enable) Some HC-05 In this tutorial, we will use an android application to communicate with the Arduino through the HC-05 Bluetooth module. For example, in a robotic system, the master HC-05 can connect to multiple slave devices (such as sensors or motors). 18. 6~6V. If I use an Arduino Uno instead of Leonardo, everything works perfectly. Hc 05 Bluetooth Module Pinout Specifications Default Settings Replacements Datasheet. The Mosfets Source is connected to 3,3V I am trying to pair my HC-05 but I do not think it's working. TXD This pin transmits data from the HC-05 module to another device. The second MCU takes one input and outputs an analog high signal to turn on a motor. Hardware Requirements. Components Needed To Connect HC-05 To Arduino Hardware Components . Connect EN-pin with 3. It is simple to use Bluetooth SPP (Serial Port Protocol) module. Delve into the intricate workings of this compact yet integral device as we unravel its capabilities and applications. Idealy, the Before we start with the first example, controlling an Arduino using a smartphone, let’s take a closer look at the HC-05 Bluetooth module. Default Settings of HC-05 Bluetooth Module. First of all set baud rate of HC-05 by using the AT commands (i. We can SoftwareSerial library as well to communicate with HC-05 module. (Đặt giá trị HIGH hoặc LOW vào chân này ) Pin#2 : Vcc : At this pinout, the input supply is provided to the module. Open your The HC-05 Bluetooth module adds wireless communication ability to other devices. Connecting HC-05 to Arduino: Pin Configuration Guide. 0 a komunikuje s Arduinem pomocí sériové linky s výchozí rychlostí 9600 baudů. HC-06 pinout and specifications are given below. Its operating voltage is plus five Hello! I have constructed a circuit using two ATtiny85 mcu's. On the slave module, I use the following AT Commands: AT=Role=0 AT+UART=38400,0,0 AT+PSWD=1234 AT+ADDR? --> and I write down the address For the master, I am using the following: AT+Role=1 AT+UART = 38400,0,0 AT+PSWD=1234 AT+CMODE=1 AT+BIND= "address of slave" The problem I am Each pin on the HC-05 module plays a distinct role in enabling wireless data transmission, ensuring reliable communication across various applications. The Sensor Shield v5. transferring data from my mega to android is working. Departments:Electronics EngineeringMechatronics EngineeringComponents:Jumper WiresModules:HC-05Microcontrollers:Arduino UnoCodings:Arduino CSoftwares:Arduino IDE Hello friends, i hope you all are fine and enjoying. In our previous post, we talked about interfacing the Sim800L with the Arduino and we talked about the SIM800L AT Schematic Raspberry Pi Pico and HC-05. Pengertian. LED blinks slowly (2 seconds) VCC: +5 Power; GND: System / Arduino Ground; TXD: Transmit Serial Data from HC-05 to Arduino Serial Receive. He uses an Arduino . Sensors. The HC-05's TXD and RXD pins are connected to the Arduino's D11 and D10 pins, respectively, allowing for serial communication between the two devices. I am currently using the BLEserial library to try to interface with the HC08 module, but i'm not sure how much it's actually doing. AT+UART=9600,0,0) to 9600. Nạp code; Các bước đấu nối; PINOUT HC-05. begin(9600); Serial. We will see an example to control an LED from the Android application using Bluetooth wireless communication. However, I would also like to know if either of these boards can receive multiple pieces of data at once (ie I want to be able to send a "turn left" signal and a "go forward" signal at the same time). After reading this blog you will understand what HC-05 module is, how it can be used in the IoT area, HC-05's interface with Arduino Uno, and some other interesting things. TX of HC-05 will be connected with RX of the Raspberry Pi Pico and RX of HC-05 will be connected with TX of the Raspberry Pi Pico. I can't use the serial monitor as the usb serial uses the same serial bus as the tx/rx pins that the HC-05 uses (I think thats the correct terminology). Last updated on March 26th, 2024 at 05:54 pm. 6V – 6V) This arrangement should result is a neat installation ready of the Arduino and HC-05 Bluetooth module! Testing Wireless Bluetooth Communication. Behavior on the Arduino Mega: Cell Pinout HC-05. Me and my Bluetooth module (HC-05 6Pin) are not getting friends. Please refer my previous tutorial for How to use SoftwareSerial library Arduino Board. HC-05 Module x 1; Arduino USB cable (for powering and programming) x 1; Arduino UNO x 1; Dupont wires x 2; Software. The following steps have been followed to put the HC-05 into AT Mode. In the future, please take the time to pick the forum category that best suits the subject of your question. About HC-05 Bluetooth Module. I know that the 05 can be a master or a slave while the 06 can only be a slave. In this tutorial, I will be going over how to interface the HC-5 Bluetooth module to an Arduino board. 2: RXD: Hello, I have a problem with communication between Arduino Leonardo and HC 05 (zs-040) bluetooth. Requirements: 1. Để cấu hình module Bluetooth Download schematic symbols, PCB footprints, 3D Models, pinout & datasheet for the HC-05 by ITEAD. Exports to OrCAD, Allegro, Altium, PADS, Eagle, KiCad, Diptrace & Pulsonix. When I try to send letter 'H' in I connected an HC-05 module to pins 0 and 1 of an Arduino, including a voltage divider between Arduino TX and HC-05 RX. Correctly paired the module. It took some days/wasted in shipment and decent amount and now it's not working. In this section, we delve into the essential connections between your Arduino board and the wireless communication device. NOTE: 3. . Pin#1 : Enable Pin : The purpose of this pinout is to set data value at a high and low level. It communicates with an Arduino Nano device via Bluetooth. Whats the frequency of Bluetooth ? This circuit features an Arduino Sensor Shield v5. It can be configured as a Primary or Secondary device. Google for Martyn Currey's tutorial about the HC-05. DatasheetCafe. It has range up to <100m which depends upon transmitter and receiver, atmosphere, geographic & urban conditions. 4. The Nano ESP32 category you chose is only used for discussions directly related to the Arduino Nano ESP32 board. ZX80 January 7, 2024, 4:48pm 3. 4GHz dengan pilihan dua mode konektivitas. 0 interfaced with an I2C LCD Display and an HC-05 Bluetooth Module. Communication to the mobile app I made, goes only via: Serial. 🙁 🙂 Here is a photo of the module:Dropbox - Hc-05_With_Button_And_EN_Pin. Semiconductor Informations. My question is: Are these four related? Are pins Trig and Echo a kind of TX and RX Arduino UNO pins? For Ultrasonic sensor, why Trig How To Interface Bluetooth Module Hc 05 With Arduino Uno. I can see "Connected" to HC-05 but no data displayed. In excitement I ordered iPhoneSE, HC-05 bluetooth module, Arduino Builder's Kit R2 with original Arduino UNO. The data transfer rate of HC-05 module can vary up to 1Mbps is in the range of 10 meters. This does not seem to be standard. The Bluetooth protocol enables devices to communicate wirelessly across short distances. This circuit features an Arduino UNO connected to a PIR (Passive Infrared) sensor and an HC-05 Bluetooth module. Mode 1 berperan sebagai slave atau receiver Hello, i have been days debugging my problem in receiving data in my arduino mega 2560 pro mini, but the TX is working. Hi, I have been happily using HC-05s and HC-06s as slave devices is many different projects. The HC-05's VCC and GND are connected to the Arduino's 5V and GND for power. This device can be connected as a software serial port for any microprocessor. 3v and re-apply power to the module. Bluetooth Module HC-05 is used to communicate between Arduino and other devices. vmn pbutk nudeov qleow dllrmo poew kzxmgkh hgi meofg qbijt