Sound sensor nodemcu Leave a Reply Cancel reply. Prototype Sound Sensor: Sound Sensor detects the sound intensity of This tool consists of hardware (hardware) including NodeMCU ESP8266, PIR Sensor, LCD 16x2 I2C, Sound Sensor, DF Player Mini Mp3, Speaker, and Android application software. Projects Contests Teachers Interface PIR Sensor With NodeMCU. Given that this device measures whether or not sound has exceeded a threshold, fritzing parts. Featured. GPL-3. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with ESP8266. There are 3 kits available at Robo India to learn NodeMCU wifi module on Arduino IDE. Analog Sound Sensor Module High Sensitivity Microphone Sensor Module for Arduino จำนวน 1 ชิ้น Tags : Sound Sensor Module Arduino Arduino Sound Sensor Module. Detecting the sound intensity of the surrounding environment, Caution: This sensor is only identify whether the size (according to the vibration principle) does not recognize the specific sound or sound frequency sound. Suryana, Taryana (2021) Membaca Masukan Dari Sensor Getar (vibration Sensor) Sw-420 Dengan Tags : Sound, sound sensor, Analog Sound Level Meter. This is first version – Robo India Basic NodeMCU starter Kit. If your are new to Internet of Things (IoT), learn about IoT by visiting our Internet of Things tutorial for beginners. Programming NodeMCU with the Arduino IDE will hardly take 5-10 minutes. If you have not read those articles yet, please read them. It samples audio from a digital I2S microphone, analyses it into sub-bands, My initial prototype used an NodeMCU ESP32. NodeMCU. OK let’s go to today’s post. Here’s how it works: The ultrasound transmitter (trig pin) emits a high-frequency sound (40 kHz). This allows for communication between the two components. 0 forks. Prototype Sound Sensor: Sound Sensor detects the sound intensity of สินค้า 1 ชุดประกอบด้วย - Analog Sound Sensor Module High Sensitivity Microphone Sensor Module for Arduino จำนวน 1 ชิ้น ช้อป Analog Sound Sensor Module High Sensitivity Microphone Sensor Module For Arduino Nodemcu Esp8266 ESP32 (เก็บเงินปลายท HC-SR04 Ultrasonic Sensor Pinout. The working principle is that if the decibel value exceeds the predetermined value, the room user will hear a warning sound and send an informational text in the form of an email Learn how a sound sensor works, how to connect the sound sensor to Arduino, how to program Arduino to detect the sound. 52465/joetex. By CodeChamp in Circuits Sensors. Sound Sensor Module (Condenser on side of PCB) Sound Sensor Module for Arduino Description: 1. KY-038: Microphone sound sensor Buy this sensor or 37 in 1 kit. All tips and help are much appreciated. Finger Print Sensor 2; Motors & Drivers 13; NodeMCU on Arduino IDE 38; NodeMCU Starter Kit – Basic 13; NodeMCU Starter Kit – Neo 13; NodeMCU Starter Kit – Professional 14; Raspberry Pi 10; distance to an object = ((speed of sound in the air)*time)/2. Fig. This module is Learn how to use motion sensor to control MP3 player. The “WaveShare Sound Sensor” is using this op-amp and also you can use the suggested schematics in the manual file of the project. io application. NodeMCU ESP8266; USB B type Data Cable; PIR (Passive Infrared) Sensor; Piezo buzzer; Jumper Wires; Breadboard; The KY-038 sound sensor module consists of capacitance sensitive microphone (50Hz-10kHz) and an amplification circuit. or a smartphone power bank. The best type of microphone for sound level meters is the condenser You will need to connect the signal pin of the sound sensor to one of the analog pins on the Arduino board. The detail instruction, code ESP8266 produces a sound when the object is near the ultrasonic /* * This ESP8266 NodeMCU code was developed by newbiely. เซนเซอร์เสียง Sound Sensor Microphone Head Noise Module WiFi NodeMCU ESP8266 [15] WiFi NodeMCU ESP32S [2] WiFi ESP8266 [33] WiFi ESP8285 [2] WiFi ESP32 [41] WiFi ESP32-S3 [6] WiFi ESP32-C6 [6] WiFi WeMos [18] WiFi LinkIt [5] WiFi CC3000 [1] WiFi EMW3165 [1] MicroPython [2] ness/sound sensor and a NodeMCU (ESP8266) module, every-thing powered from a single 5V smartphone DC wall adopter. ness/sound sensor and a NodeMCU (ESP8266) module, every-thing powered from a single 5V smartphone DC wall adopter or a smartphone power bank. The logged data that is collected can then be used to carry out researches regarding sound pollution in targeted areas. I already had two sound modules that I bought a couple of years ago in the 37 modules kit. A sound level meter is used for acoustic (sound that travels through the air) measurements. I have it placed in my garage. Suryana, Taryana (2021) Implementation Ds18b20 1-wire Digital Temperature Sensor With Nodemcu Ideal Temperature For Brewing Coffee. speed of sound in the air at 20ºC (68ºF) = 343m/s; Schematic – ESP8266 NodeMCU with HC-SR04 Ultrasonic Sensor. This involves some very simple calculations and the ability to detect sound. com/shaikabdulsalam31#nodemcu #sound #soundsensor#esp8266#blynk #reaction Check out full Project: https://www. WiFi NodeMCU ESP8266 [15] WiFi NodeMCU ESP32S [2] WiFi ESP8266 [33] WiFi ESP8285 [2] WiFi ESP32 [41] WiFi ESP32-S3 [6] Hi. I've interfaced a LM393 Sound Detection Sensor with my NodeMCU, for push notifications through Blynk. PDF | On Jan 1, 2022, Amperawan Amperawan and others published Hardware Design and Lung Sound Detection Simulation to Analyze Lung Abnormalities Based on Arduino Mega, NodeMCU ESP32 and Internet Let's learn to make an IoT-based Decibel meter with NodeMCU ESP8266 & Sound Sensor then monitor the sound level intensity on the Arduino IoT cloud. While I could use a PIR sensor, the sound sensor would send a notification even if someone unsuccessfully tried to enter the garage. If there is any harmful noise or harmful temperature, these actuators notify that to the user. google. This is Third version – Robo India Professional NodeMCU starter Kit. As a result, we will be able to plot the surrounding sound The microphone based sound sensor is used to detect sound. The part numbers are apparently KY-038 and although the two look slightly different, the documentation says that the only difference is that one is high sensitivity and one is low. . Previous Previous post: Blynk for NodeMCU – Reading DHT-11 sensor data on Blynk App remotely. I've got a NodeMCU ESP8266 board that I'm trying to pair with a Sound Sensor. This is connected to server through MQTT broker. Conecte el sensor ultrasónico HC-SR04 al ESP8266 como se muestra en el siguiente diagrama. #decibelmeter#Iot#iot#iotapplications #arduinocloudlet's start making an IoT decibel meter using a sound sensor to detect ICU room noise. You must be logged in to post a comment. v1i1. Forks. เชื่อมต่ออุปกรณ์ตามด้านล่าง In the above diagram, we have connected the power pins of the sound sensor and LCD display to 3v3 and GND pin of NodeMCU. - cepdnaclk/e18-CO326 Smart home security system built using a NodeMCU, an ultrasonic sensor (HC-SR04), an LED, and a buzzer. Next Next post: Arduino – Tilt Sensor. I will hope to present Nodemcu lessons in the next articles. The sound travels through the air. Almost 10uS of Trigger Input Pulse is required at Trig pin of the sensor. The detail instruction, code Sound Sensor; ESP8266 - LCD; ESP8266 - LCD 20x4; ESP8266 - OLED; ESP8266 /* * This ESP8266 NodeMCU code was developed by newbiely. Here’s a simple circuit with WaveShare Sound Sensor and NodeMCU: And also there is a suggested circuit with a simple capacitive microphone, LM386 and NodeMCU or ESP8266MOD (ESP12) in the manual pdf file. And + and GND pins of sound sensor are connected to the 3v3 and GND pins of NodeMCU respectively. 15. How do I configure this in ESPEasy to send one switch "on" when there is noise triggering the "switch"? I have tried a few alternatives, but ESPEasy dont put the switch back to "0" when silence. We used IoT to solve our problem using these items -. CODE: https://docs. Sound Sensor Module (Condenser on side of PCB) Sound Sensor Module for Arduino Description:1. I wanted digital and simple solution, but I'm thinking I might need a library to make it work? The closes examples I've Nodemcu based decibelmeter using big sound sensor and blynk GitHub: https://www. Sound Sensor FC04 - Proteus Library; Tank Level Sensor - Proteus Library; New Reed Switch Model - Proteus Library; Flex Sensor - Proteus Library; LED Meter (Visual Animated LED Meter) - Proteus Library; Ball Tilt Switch Sensor - Proteus Library; 16-Channel Servo Driver Module - Proteus Library; FSR Sensor (FSR406) - Proteus Library The sound sensor is a sensor that can convert the amount of sound into an electrical quantity where Implementation Ds18b20 1-wire Digital Temperature Sensor With Nodemcu Ideal Temperature For Brewing Coffee. Viewed 711 times 1 . 185 Corpus ID: 265086824; Noise Detection System in The Classroom Using Sound Sensors and NodeMCU ESP6288 @article{Rafiq2023NoiseDS, title={Noise Detection System in The Classroom Using Sound Sensors and NodeMCU ESP6288}, author={Arif Ainur Rafiq and Sugeng Dwi Riyanto and Hera Susanti}, journal={Journal of There are 3 kits available at Robo India to learn NodeMCU wifi module on Arduino IDE. com/project/iot-based-sound-pollution-monitoring-system-measures-and-track-decibels-db-using-nodemcuIn this DOI: 10. It gives a measurement of how loud a sound is. velocidad del sonido en el aire a 20°C (68°F) = 343m/s; Esquema: ESP8266 NodeMCU con sensor ultrasónico HC-SR04. distance to an object = ((speed of sound in the air)*time)/2. I'm very This module ESP8266 is directly implanted on a card NodeMCU on which we load our code. The educational environment is the process of educational activities, so the environment is expected to be comfortable and avoid noise. One of them is a LM393 Sound Detection Sensor Module. A sound level meter is used for Here, I explain the procedure to interface sound sensor with NodeMCU. Installing and Getting Ready. 0340 cm/µs the sound wave will need to tour about 294 u seconds. Search for: It measures sound wave by sending out signal (8 cycles of ultrasonic burst at 40KHz frequency). This instructable will explain how to connect a light sensor and a motion sensor to NodeMCU ESP8266 and push the data to the IoT platform ThingSpeak, with an additional feature of a simple Lux meter. Learn how a sound sensor works, how to connect the sound sensor to ESP32, how to program ESP32 to detect the sound. Follow the series of steps given below to successfully configure the application. 13 stars. iotdesignpro. Robo India offers various kit for learning purpose. Here’s the pinout of the HC-SR04 Ultrasonic Sensor. Noise can be disturbing, such as The audio signal must be between 0-3. Next, make sure to connect the VCC pin of the sound sensor to 5V on the Arduino board and ground pin to GND. The module's main component is a simple microphone based on the LM386 amplifier and an electret microphone. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you Want to give your project the sense of sound! Then follow along because in this project we are interfacing a sound sensor to build some interesting projects with it. A noise detection system in the learning room uses a sound sensor based on NodeMCU ESP8266, which can send email notifications and be monitored through the thinger. WiFi NodeMCU ESP8266 [15] WiFi NodeMCU ESP32S [2] WiFi ESP8266 [33] WiFi ESP8285 [2] WiFi ESP32 [41] WiFi ESP32-S3 [6] WiFi ESP32-C6 [6] WiFi WeMos [18] WiFi LinkIt [5] WiFi CC3000 [1] WiFi EMW3165 [1] MicroPython [2] The Analog output from the sound sensor A0 is connected to the A0 pin on NodeMCU. The system detects motion and alerts by lighting up the LED, sounding the buzzer, If an object is detected within the specified range, the LED will light up, the buzzer will sound, and a notification will be sent to Telegram. Watch this video to Fig -2 Sound sensor with NodeMCU Sound Sensor: The Sound Sensor detects the intensity of the environment's sound and feeds it to the Arduino's ADC. I have attached the code I originally ran, but it pushes notifications several times per seconds. Today we are going to talk about the sound sensor. arduino nodemcu websockets sound-sensor baby-monitor Resources. Sound sensor attached with ESP32. We recommend to follow these in given order-Introduction to NodeMCU on Arduino IDE. The best compatible audio amplifier is LM386. NodeMCU ESP8266; Sound sensor; IR LED; Some wires; Breadboard; Arduino programming (C++) We used our programming talents to build a simple circuit to get input from sound sensor and if a sound is detected at regular intervals, it would signal the IR Led to switch on the AC at a Sound sensor red suara microphone wemos nodemcu uno mega esp32 etc di Tokopedia ∙ Promo Pengguna Baru ∙ Cicilan 0% ∙ Kurir Instan. Modified 6 years, 1 month ago. com * * This ESP8266 NodeMCU code is made available for public use without any restriction * * For comprehensive This helmet device is with sensors that has MQ9 gas sensor, thermistor, and KY-037 sound detection sensor. That’s it, cool our Cheap smart LED Strip with ESP8266 is ready to use. Components Required. LED and Piezo Buzzer are used as actuators. Arduino – Sound Detection Sensor. 5 and 5V and has 3 outputs: NodeMCU ESP 8266 microcontroller. 🎙 Detecting sound level using ESP8266 and ESPHome laying around in the house. It supports UART, SPI, and I2C interface. I'm connecting it to my NodeMCU WiFi board. Here are the projects under this category. The Nodemcu connects to Wi-Fi and sends the data to Thingspeak server. NodeMCU ESP8266 V2 CP2102 LUA based ESP8266-12E; สาย Micro USB Type B to USB 2. Key Words: Surveillance, NodeMCU, Arduino, UltraSonic Sensor, Echo. The sensor takes in ambient sound and provides a voltage I'll be using my favorite module, the ESP8266, as a controller and a KY-038 microphone sound sensor as the sensor. Programming NodeMCU ESP8266 with Arduino IDE. The Fritzing chart wrongfully shows a NodeMCU, but in reality I used a Wemos D1 Mini because it was the first one I could Hi, I'm very new to this world, and trying to hack one of my first projects have proven hard without solid documentation or examples to copy like I usually do. Solution. 0 license Activity. 84. WiFi NodeMCU ESP8266 [15] WiFi NodeMCU ESP32S [2] WiFi ESP8266 [33] WiFi ESP8285 [2] WiFi ESP32 [41] WiFi ESP32-S3 [6] WiFi ESP32-C6 [6] WiFi WeMos [18] WiFi LinkIt [5] WiFi CC3000 [1] WiFi EMW3165 [1] อุปกรณ์ที่ต้องใช้ใน บทความ สอนใช้งาน NodeMCU ESP826 เปิดปิดไฟ LED ด้วยเสียง Sound Microphone Sensor. Wiring. ***** You can even control motors, buzzers, and sensors using it. In this tutorial, we will learn about microphone sound sensor which is used to measure sound intensity. Arduino, and ESP8266 NodeMCU, etc. NodeMCU can be powered using a Micro USB jack and VIN pin (External Supply Pin). The best type of microphone for sound level meters is the condenser microphone, which combines precision with stability and reliability. I'll walk you through what I've tried so far: I tried adjusting the pot and got values between about 17 and 1024, but it wasn't changing with sound. The circuit with "NodeMCU" and "Waveshare Sound Sensor": First open one of the files with Arduino program, then set the settings as the following image (Board, CPU Frequency and Flash Frequency): The “Board” must be set on one of the ESP8266 Modules before doing anything. I'll be using my favorite module, the ESP8266, as a controller and a KY-038 microphone sound sensor as the sensor. Arduino 0 Comments. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino. This tool uses a sound sensor for noise detection and a PIR Sensor for motion detection. 1 watching. INTRODUCTION Surveillance is the way towards observing a situation, an area or a person. [Teaching Resource] 18. Final project of IUST's Embedded Lerne, wie du deine Türklingel mit ESPHome, Home Assistant und einem ESP8266/NodeMCU in eine intelligente Klingel verwandelst. com/document/d/1CrnpbSvnSo_VKsD96Z_ZOZQhDlEEuuE0/edit?usp=sharing&ouid=105014101536221024955&rtpof=true&sd=true A sound sensing system using NodeMCUs and Websockets - GitHub - wrcsubers/Arduino_BabyMonitor: A sound sensing system using NodeMCUs and Websockets. The main component of the module is a simple microphone, which is based on the LM358 amplifier and an electret microphone. The KY-038 sound sensor we are using uses a On the webapp, it plots all the real- time data from the devices over Google maps according to the locations of the node devices. Pemrograman Arduino The sound sensor is a sensor that can convert the amount of sound into an electrical quantity where the value is obtained from the size of the sound wave hitting the membrane Sensor that causes the sensor membrane to vibrate which also has a small coil behind the membrane rising and falling. NodeMCU with digital sound sensor - Can't find examples or good documentation. In processing sound, DF Player Mini is used as a sound file format, the PAM8403+Potentio Module as a sound amplifier, and a display appears on the LCD for output. Here are what my sensor network system is supposed to do and how it functions: Light sensor (LDR) triggers LED 1 ; Key Words: Surveillance, NodeMCU, Arduino, UltraSonic Sensor, Echo. A sound level meter is used for acoustic (sound that travels through the air) measurements. We discussed servo motors in a previous post. Arduino KY-038 Sound Sensor Module (with Analog & Digital Outputs) - Flat Head. Hi all - I have a NodeMCU running ESPEasy with a few sensors. Stars. Suryana, Taryana (2021) Membaca Masukan Dari Sensor Getar (vibration Sensor) Sw-420 สอนใช้งาน ESP32 เซ็นเซอร์ตรวจจับเสียง Sound Sensor Module งาน Arduino เซ็นเซอร์วัดความชื้นในดิน Soil Humidity Detection Sensor V2; บทความ ESP8266 NodeMCU In this tutorial we will make a IoT Based Sound decibel Level Monitoring using Nodemcu ESP826612E and KY-037 high Sensitivity Sound Microphone Sensor Detection Module. 2. These connections provide power supply for your sound sensor. In figure 2 is an image of one. How Does the HC-SR04 Ultrasonic Sensor Work? The ultrasonic sensor uses sonar to determine the distance to an object. Contribute to samik-saha/fritzing development by creating an account on GitHub. This module's output is analog and can be easily sampled and tested by a NodeMCU Projects EV Projects PCB Projects Arduino ESP8266 Projects Home Automation Projects Robotics Projects All Microcontroller Projects Contests IoT & Edge AI Project Challenge 2024 World Energy Sound Sensor with Arduino UNO – Connection Diagram. 11 articles on Arduino basics. The sound sensor must be powered between 3. Schritt-für-Schritt-Anleitung zur Einrichtung und Integration für binary_sensor: - platform: gpio Grove - Sound Sensor can detect the sound strength of the environment. ; Secondly the condenser microphone it can be replaced in case of any damage also you can replace it with some high quality condenser microphone as per your need. In figure 2 is an image of one of the three node-device prototypes built for this project. You must be logged in to post a The sound sensor is a sensor that can convert the amount of sound into an electrical quantity 17. can be monitored us This tutorial of Robo India explains how to use NodeMCU on Arduino IDE. the electricity it produces, Sound Sensors can be SENSOR: When the microphone sensing sound reaches a certain value, this LED lights. Ask Question Asked 6 years, 2 months ago. Previous Previous post: PIR Motion Sensor with Blynk-NodeMCU. สินค้า 1 ชุดประกอบด้วย. 112,583. SYSTEM DESIGN 1. For sound detection Module has two outputs: AO, analog output, real-time output voltage signal of the microphone; DO, when the sound intensity reaches a certain threshold, the output high and low signal Buy Sound Sensor Module | Digital | Compatible for Arduino / ESP8266 / Nodemcu / ESP32 etc online today! Digital Sound Detector Sensor Module The Digital Sound Detector Sensor Module has an on-board potentiometer to adjust sensitivity, the module outputs high when the threshold is reached. If the sound input crosses threshold, LED will glow. Connect the HC-SR04 ultrasonic sensor to the ESP8266 ultrasonic sensor according to the schematic diagram below. com * * This ESP8266 NodeMCU code is made available for public use without any restriction * * For comprehensive instructions Learn how to use ultrasonic sensor to control piezo buzzer. Next Next post: Infrared Tutorial on Arduino. Now plug the power and turn on the circuit and the module in “normal mode”. Readme License. WiFi NodeMCU ESP8266 [15] WiFi NodeMCU ESP32S [2] WiFi ESP8266 [33] WiFi ESP8285 [2] WiFi ESP32 [41] WiFi ESP32-S3 [6] WiFi ESP32-C6 [6] WiFi WeMos [18] WiFi LinkIt [5] WiFi CC3000 [1] Advantages: The main advantage of the Sound sensor is the simplicity of the sensor, which makes it ideal sensor that can be use by the beginners for making a grip in this field. The diaphragm of the microphone responds to changes in air pressure caused by sou In this tutorial, we will learn how to use our capacitor sound sensor to measure sound intensity around the room. The buzzer module is a tool for sending sound signals as information on the condition of gas cylinders. 3v for ESP32 and NodeMCU modules and must be between 0-1v for directly connecting to the ESP8266 modules. HC-SR04 ultrasonic sensor measures distance by using inaudible ultrasonic sound waves of 40KHz frequency. As well as using the sensor microphone as sound detection, and a buzzer as output a warning when the sound sensor detects noise. Report repository In this Instructable we will learn how to interface PIR / HC-SR501 sensor with NodeMCU. The test was carried out using several sound samples (the sound of a baby's cry, the sound of people chatting, the sound of a dog, the sound of a cat and the sound of a chicken). The microphone is connected to the microcontroller as follows (old): INMP441 GND to ESP32 GND; INMP441 VDD to ESP32 3. Like sound waves, Now we know that to interface an HC-SR04 sensor with ESP8266 NodeMCU, we need four pins out of which two are power supply pins and two are digital input output pins. Beli Sound sensor red suara microphone wemos nodemcu uno mega esp32 etc di art techno. Tests have been carried out with samples of the baby's crying sound 30 times with a distance of 3cm – 15 cm in the room. In this article we will learn how to implement Ultrasonic Sensor with NodeMCU ESP8266. Microphone sound detection module. Sound level meter (also known as the decibel meter, noise meter) is a basic noise measurement instrument. Sensors and actuators are controlled by ESP32 module. Introduction: High Sensitivity Sound Microphone Sensor Detection Module เซนเซอร์เสียง KY-037; วิธีการต่ออุปกรณ์ สอนใช้งาน เซ็นเซอร์เสียง High Sensitivity Sound KY-037. How to Use Sound Sensor With Arduino: Welcome back to my blog. Contribute to uc-mani/SoundSensor_HW484 development by creating an account on GitHub. WiFi NodeMCU ESP8266 [15] WiFi NodeMCU ESP32S [2] WiFi ESP8266 [33] WiFi ESP8285 [2] WiFi ESP32 [41] WiFi ESP32-S3 [6] WiFi ESP32-C6 [6] WiFi WeMos [18] WiFi LinkIt [5] WiFi CC3000 [1] WiFi EMW3165 [1] MicroPython [2] I've tried adjusting the sensitivity potentiometer; that seems to only change the value it reads, but the value still doesn't change based on sounds. github. Watchers. 3V; Internet of Things (IoT) based sound level monitoring device with NodeMCU ESP8266, Sound module and OLED display. The sound sensor module is a small board that mixes a microphone (50Hz-10kHz) and a few processing Here, I explain the procedure to interface sound sensor with NodeMCU. Marcel Meek built a sound sensor based on an ESP32 board with built-in LoRa-chip. Keywords: Sound Sensor, NodeMCU, ESP8266, Noise Pollution, Mapping, IoT, Google firebase. Sound sensor SEN 12642 : Our project is based on a sound sensor Gotronics Ref: 32606, this sensor aims to measure the sound noise more or less close to the microphone. Internet of things with NodeMCU ESP8266 for MPX-5700AP sensor-based LPG pressure monitoring. 1. 0 Type A ยาว 1 เมตร Therefore, a noise detection system using a NodeMCU-based sound sensor ESP8266 was designed. Along with that, we have also connected the SCL and SDA pins of the module to D1 and D2 respectively, and the Learn how to use ESP8266 generate audio sound, from a single beep sound to recorded audio, how to program ESP8266 step by step. The KY-038 provides two outputs: one analog A0 to wire up to the ADC pin and measure through In this tutorial we will make a IoT Based Sound decibel Level Monitoring using Nodemcu ESP826612E and KY-037 high Sensitivity Sound Microphone Sensor Detection Module. Conversely, if there is no sound, a 0V (GND) voltage is sent to the Arduino, which can then be used to write a program according to the desired application. if the item is 10 cm far away from the sensor, and the velocity of the sound is 340 m/s or 0. In the design of this tool is the author using the NodeMCU as a hardware device or a microcontroller. The Buzzer will sound as alarm when the sensor mic captures sound which exceeds the tolerance limit. The NodeMCU Development Board can be easily programmed with Arduino IDE since it is easy to use.
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