{"product_id":"grove-loudness-sensor","title":"Grove - Loudness Sensor","description":"\u003cdiv data-docx-has-block-data=\"false\" data-lark-html-role=\"root\" data-page-id=\"OF8fdIhkLowYQExTxGBl8nWRgfh\"\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-ZZeJdkUGOoJLz2xHSS0lWljAgJd\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-ICVydnMCGov3i5xaLpflXNTwg2f\"\u003eThe \u003cstrong\u003eGrove - Loudness Sensor\u003c\/strong\u003e is designed to detect the loudness of environmental sound. Based on the LM2904 amplifier and with a built-in microphone, it amplifies and filters the high-frequency signal that is received from the microphone and outputs a positive envelope. This will make for Arduino's signal acquisition. The output value depends on the level of the sound input. In order to avoid unnecessary signal disturbances, the input signal will go through filtering twice inside the module. Lastly, there is a screw potentiometer that enables manual adjustments to the output gain.\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-RDLYdfEVHoC7ijxuUsFltWwqgjf\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-RDLYdfEVHoC7ijxuUsFltWwqgjf\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-UwgudEwX2oZqfAxG3akliQoUg0g\"\u003e\n\u003cstrong\u003eUpgraded Functionality:\u003c\/strong\u003e Based on LM2904 - Dual, 36-V, 1.2-MHz operational amplifier with -40°C to 125°C operation.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-PkJTdUnivo5rHRxVsUil8fYtg8e\"\u003e\n\u003cstrong\u003eWide Supply Voltage Range:\u003c\/strong\u003e In the range of 3.2V~5.2V.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-QlVKdpO8CoXyRtxhA6vlRca9gke\"\u003e\n\u003cstrong\u003eBuilt-in Signal Filtering:\u003c\/strong\u003e Input signals will go through filtering twice inside the module.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-X5e6diz3uoQU9cxkMselD1kUgGb\"\u003e\n\u003cstrong\u003eAdjustable Output Gain:\u003c\/strong\u003e It has a screw potentiometer that enables manual adjustments to the output gain.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-M9epdCFM2ok1xExNYjulrdCGgOh\"\u003e\n\u003cstrong\u003eGrove Unified Socket:\u003c\/strong\u003e The product ensures \"Plug and Play\" and could be versatile for various applications of Grove.\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-H1rRdpzDpoWfE3x41lUlzjacgwh\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-H1rRdpzDpoWfE3x41lUlzjacgwh\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Bgqpd3BRDokG7XxOeEulYWJlgle\"\u003e\n\u003cstrong\u003eVoltage: \u003c\/strong\u003e3.5 ~ 10 VDC\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-UtkqdSBNLoYJBgx7KkFlsDIIgYD\"\u003e\n\u003cstrong\u003eWorking Frequency: \u003c\/strong\u003e50 ~ 2000 Hz\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-LNYzdqCjToDlLBxf3TvlJHNog0d\"\u003e\n\u003cstrong\u003eSensitivity: \u003c\/strong\u003e-48 ~ 66 dB\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SieKdmjQOo6Y3MxjlBBl5ZHygGH\"\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e \u0026gt;58 dB\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-PgcMdQlO5oTPAwxvb5UlDea6gad\"\u003e\n\u003cstrong\u003eOutput Signal Range: \u003c\/strong\u003eAnalog Signal (0 - 1023)\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-CDdjdbPCRoNscRxczf0llq45gu9\"\u003e\n\u003cstrong\u003eMicrophone:\u003c\/strong\u003e Electret Condenser Microphone\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-W3drdA3SYosEucx08DMlec4Bglf\"\u003e\n\u003cstrong\u003eAmplifier:\u003c\/strong\u003e LM2904\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KQLmdzPUVoOC8ZxlzY4llVFKgqV\"\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 24mm x 20mm x 9.8mm\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-CchyduAlWoQugpxcjWJlzakVg6b\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9g\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-JSj2dGRtUoT9OuxPQhJlaQTxgkg\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-JSj2dGRtUoT9OuxPQhJlaQTxgkg\"\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-CoGxddr9Voi8NSxGXhjl9asUgOa\"\u003e\u003ca href=\"https:\/\/files.seeedstudio.com\/wiki\/Grove-Loudness_Sensor\/res\/LM2904DR.pdf\" data-lark-is-custom=\"true\"\u003eLM2904DR Datasheet\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-JVi8dOCI2oOfhoxPLLllXtIdgZb\"\u003e\u003ca href=\"https:\/\/files.seeedstudio.com\/wiki\/Grove-Loudness_Sensor\/res\/Grove%20-%20Loudness%20Sensor%20Eagle%20File_v0.9b.zip\" data-lark-is-custom=\"true\"\u003eGrove - Loudness Sensor Schematic\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-C5tbdeFGZo6vBtxquWslrSzZglh\"\u003e\u003ca href=\"https:\/\/wiki.seeedstudio.com\/Grove-Loudness_Sensor\/\" data-lark-is-custom=\"true\"\u003eWiki of Sound Sensor\/ Noise Detector for Arduino\u003c\/a\u003e\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-GM8rdqtCBohGHmxgrwNl0jpqgUs\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-GM8rdqtCBohGHmxgrwNl0jpqgUs\"\u003e\u003cstrong\u003ePart List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WBcudcGvGocJYAxGnr1l3jDIg0b\"\u003e1x Grove - Loudness Sensor\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Grove","offers":[{"title":"Default Title","offer_id":43418161578175,"sku":"MLE01079","price":379.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE01079.jpg?v=1749087439","url":"https:\/\/makerlab.ph\/products\/grove-loudness-sensor","provider":"Makerlab PH","version":"1.0","type":"link"}