drmina2023 Posted May 16 Report Share Posted May 16 Hi there Everybody. As I'm New to electronics, I need your advice, I have an idea of a project that includes a mic connected to speaker, the point that I have a small audio sensor board the I'd like to connect directly to a speaker through an analog circuit and without the use of an Arduino board, here is link to the chip I own for the moment, Sound Detector - Analog & Digital Outputs - RAM Electronics (ram-e-shop.com) , I hope somebody help me building such ana analog circuit. Quote Link to comment Share on other sites More sharing options...
HarryA Posted May 16 Report Share Posted May 16 It looks like the unit you have is designed to work with a high impedance load like the input to the Arduino. Typically for a LM386 driving a 8 ohm speaker a 220 to 250 microfarad capacitor is used with the negative lead to the speaker. Try adding one to your unit. see the circuits here: https://www.ti.com/lit/ds/symlink/lm386.pdf?ts=1684218564218&ref_url=https%3A%2F%2Fwww.ti.com%2Fproduct%2FLM386 Quote Link to comment Share on other sites More sharing options...
drmina2023 Posted May 17 Author Report Share Posted May 17 Thanks HarryA For your answer, you mean to connect the LM386 directly to the speaker through using a 220 to 250 microfarad capacitor , and ditching the whole board . Quote Link to comment Share on other sites More sharing options...
HarryA Posted May 17 Report Share Posted May 17 No, just simply add a capacitor to the AOUT terminal ahead of the speaker from your board. Can you trace pin 5 of the LM386 directly to the AOUT terminal ? There may or may not be a small capacitor and resistor connected to pin 5 also. UPDATE: It look like the board already has an output capacitor. The yellow 227C is a 220 microfarad capacitor. So you do not need to add one. see: https://www.ebay.com/itm/391354402991?mkevt=1&mkcid=1&mkrid=711-53200-19255-0&campid=5338766894&toolid=20006& Just connect your speaker to the output terminals. Quote Link to comment Share on other sites More sharing options...
drmina2023 Posted May 19 Author Report Share Posted May 19 Thank You HarryA, Would You Mind, showing me the complete schematic of the sound sensor board connected directly to the speaker and the power supply, as I'm not sure how to do one. Quote Link to comment Share on other sites More sharing options...
HarryA Posted May 19 Report Share Posted May 19 Just for you, anyone else there would be a fee😏 Quote Link to comment Share on other sites More sharing options...
drmina2023 Posted May 19 Author Report Share Posted May 19 Sure, next project ideas will be paid for sure, Really you made my day, I'm gonna test and tell you about the results . Quote Link to comment Share on other sites More sharing options...
loribennms Posted May 21 Report Share Posted May 21 On 5/16/2023 at 11:14 PM, drmina2023 said: Hi there Everybody. As I'm New to electronics, I need your advice, I have an idea of a project that includes a mic connected to speaker, the point that I have a small audio sensor board the I'd like to connect directly to a speaker through an analog circuit and without the use of an Arduino board, here is link to the chip I own for the moment, Sound Detector - Analog & Digital Outputs - RAM Electronics (ram-e-shop.com) , I hope somebody help me building such ana analog circuit. Qui sono elencati diversi approcci per interrompere l'abbonamento a Eolo Distire. Le modalità per cancellare l'abbonamento al servizio internet Eolo possono variare a seconda del tipo di contratto sottoscritto. Di solito, i metodi per terminare il servizio includono: If you're looking to connect a small audio sensor board directly to a speaker without using an Arduino board, you'll need to design a simple analog circuit to amplify and process the audio signal. Here are a few general steps to consider: Study the specifications and documentation of the Sound Detector board you own to understand its input and output requirements. Determine the specifications of the speaker you intend to use, such as its impedance and power handling capabilities. This information will help you design a circuit that matches the speaker's requirements. Research basic audio amplifier circuits that can be used to amplify the signal from the audio sensor board. Look for amplifier designs that fit your project's needs, such as a single-ended amplifier or a class AB amplifier. Choose appropriate components for your analog circuit, including resistors, capacitors, and transistors or operational amplifiers. The specific values and types of components will depend on the amplifier circuit you select. Design the circuit on a breadboard or a PCB (Printed Circuit Board), following the schematic diagram provided by the amplifier circuit design. Take care to ensure proper connections and component placement. Test the circuit using the audio sensor board as the input and the speaker as the output. Make adjustments as necessary to optimize the sound quality and volume levels. Please note that designing and building analog circuits requires a good understanding of electronics and circuit design principles. If you're not familiar with these concepts, it may be beneficial to seek assistance from an experienced electronics hobbyist or consult resources such as electronics forums or books on audio circuit design. drmina2023 1 Quote Link to comment Share on other sites More sharing options...
drmina2023 Posted May 28 Author Report Share Posted May 28 loribennms , thanks sir for your answer . This why I'm Here to discuss such a board. Hi everybody, it seems that I found a better board that is doing exactly what I'm Looking For, please check it here, LM386 Audio Amplifier Module (200 times Audio Amplifier) - RAM Electronics (ram-e-shop.com) and This is the wiring Video, It's also Cheaper. I'd like to know your opinion about it, and in case I'd Like to belt a professional plastic enclosure for it, where to find the right place for designing the enclosure to make a model of parts ready for the injection mold. And If I'd like to run it on AA battery how to calculate the right voltage to run the whole thing, an amplifier board, a mini speaker, and a mic piece. Quote Link to comment Share on other sites More sharing options...
loribennms Posted June 9 Report Share Posted June 9 On 5/19/2023 at 8:05 PM, HarryA said: Just for you, anyone else there would be a fee😏 alos check this out https://ipptcalculator.xyz/ Building an analog circuit to connect the audio sensor board directly to a speaker is possible. However, it's important to note that the specific implementation will depend on your project requirements and the capabilities of the audio sensor board. Here are some general steps to consider: Review the datasheet: Familiarize yourself with the specifications and features of the audio sensor board. Understand its analog and digital outputs, sensitivity levels, and any recommended circuitry. Determine the speaker requirements: Check the specifications of the speaker you intend to use, such as impedance (measured in ohms) and power rating. This information will help in designing the appropriate circuit. Design the analog circuit: Based on the audio sensor board's analog output, you'll need to design a circuit that conditions the signal and amplifies it to a level suitable for driving the speaker. This typically involves using operational amplifiers (op-amps) or audio amplifier chips. Build and test the circuit: Gather the necessary components, such as resistors, capacitors, and op-amps, as per your circuit design. Construct the circuit on a breadboard or a custom PCB, following proper wiring and component placement techniques. Test the circuit using the audio sensor board and the speaker. Adjust and optimize: Fine-tune the circuit parameters, such as gain and filtering, to achieve the desired audio quality and performance. Make any necessary adjustments to meet your project requirements. Please note that designing analog circuits requires a good understanding of electronics and circuit design principles. If you're not familiar with electronics or have limited experience, it might be beneficial to consult with an experienced electronics engineer or seek help from online communities and forums specialized in electronics and DIY projects. Additionally, it's worth considering the limitations and capabilities of the audio sensor board you mentioned. If you find that it doesn't meet your specific requirements or lacks the necessary analog output, you may need to explore alternative sensor options or use additional components to interface with the board. Good luck with your project! Quote Link to comment Share on other sites More sharing options...
bidrohini Posted June 24 Report Share Posted June 24 You need a Sound Detector module, speaker, amplifier, and connecting wires. The Sound Detector module provides both analog and digital outputs. To obtain an analog audio signal, connect the AO (Analog Output) pin of the module to the input of an amplifier circuit. You can use a simple op-amp-based amplifier circuit or an audio amplifier module for this purpose. The amplifier circuit will boost the audio signal to a level suitable for driving the speaker. Connect the output of the amplifier circuit to the input of the speaker. If you're using an audio amplifier module, it may have dedicated inputs and outputs for connecting to speakers. Ensure that the power supply for the amplifier circuit and the speaker is suitable for their requirements. Amplifiers may require a separate power supply or use the same one as the Sound Detector module, depending on the specifications. Adjust the gain of the amplifier circuit, if necessary, to achieve the desired volume level. Once the connections are made, power on the circuit and test it by making sounds near the Sound Detector module. The detected audio signals should be amplified by the circuit and played through the speaker. Quote Link to comment Share on other sites More sharing options...
loribennms Posted June 24 Report Share Posted June 24 1 hour ago, bidrohini said: You need a Sound Detector module, speaker, amplifier, and connecting wires. The Sound Detector module provides both analog and digital outputs. To obtain an analog audio signal, connect the AO (Analog Output) pin of the module to the input of an amplifier circuit. You can use a simple op-amp-based amplifier circuit or an audio amplifier module for this purpose. The amplifier circuit will boost the audio signal to a level suitable for driving the speaker. Connect the output of the amplifier circuit to the input of the speaker. If you're using an audio amplifier module, it may have dedicated inputs and outputs for connecting to speakers. Ensure that the power supply for the amplifier circuit and the speaker is suitable for their requirements. Amplifiers may require a separate power supply or use the same one as the Sound Detector module, depending on the specifications. Adjust the gain of the amplifier circuit, if necessary, to achieve the desired volume level. Once the connections are made, power on the circuit and test it by making sounds near the Sound Detector module polished concrete. The detected audio signals should be amplified by the circuit and played through the speaker. Building an analog circuit to connect your sound detector board directly to a speaker can be a fun project. Here are some general steps to help you get started: Understand the Sound Detector Board: Take some time to study the datasheet and documentation of the Sound Detector board you have. This will provide valuable information about its pinout, voltage requirements, and signal outputs. Determine Speaker Requirements: Identify the specifications of the speaker you plan to use, such as impedance (measured in ohms) and power rating (measured in watts). This information will be crucial in designing the analog circuit. Design an Amplifier Circuit: To amplify the audio signal from the sound detector board and drive the speaker, you'll need to design an amplifier circuit. Depending on the power requirements and complexity of your project, you can choose from various amplifier configurations, such as a basic transistor amplifier or an op-amp-based amplifier. You can find amplifier circuit schematics and tutorials online or consult electronics resources. Connect the Sound Detector Board: Connect the analog output of your sound detector board to the input of the amplifier circuit. Ensure that the voltage levels and impedance are properly matched between the two components. Connect the Speaker: Connect the output of the amplifier circuit to the speaker. Take care to connect the positive and negative terminals correctly to avoid phase cancellation or distortion. Test and Troubleshoot: Power up the circuit and test the audio output. Adjust the volume and gain settings as needed. If you encounter any issues, double-check the connections, component values, and polarity. Remember, working with electronics involves certain risks, such as electrical shock or damage to components. Take appropriate safety precautions and ensure that you have a good understanding of basic electronics principles. If you're new to electronics, it may be helpful to consult an experienced hobbyist, join online forums, or consider seeking guidance from a local electronics club or community. Please note that while I can provide general guidance, it's always recommended to consult specific resources and seek expert advice when working on electronics projects. Quote Link to comment Share on other sites More sharing options...
drmina2023 Posted June 26 Author Report Share Posted June 26 Thank you all for your generous Advices , I've already bought the Components and Soon Gonna connect them and tell you about the result should it Succeed, it will be a great new product. Quote Link to comment Share on other sites More sharing options...
loribennms Posted July 1 Report Share Posted July 1 On 6/26/2023 at 11:20 PM, drmina2023 said: Thank you all for your generous Advices , I've already bought the Components and Soon Gonna connect them and tell you about the result should it Succeed, it will be a great new product. epoxy flooring Salt Lake City my pleasure Quote Link to comment Share on other sites More sharing options...
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