{"product_id":"sc8002b-audio-module","title":"Keyestudio SC8002B Audio Amplifier Module","description":"\u003cstyle\u003e\n  @import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:wght@400;500;600;700\u0026display=swap');\n  .nzn-desc .tagline{font-family:'DM Sans',sans-serif;font-size:17px;line-height:1.7;color:#333;border-left:3px solid #e07e2c;padding-left:16px;margin-bottom:32px}\n  .nzn-desc .section-title{font-family:'DM Sans',sans-serif;font-size:15px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#e07e2c;margin-bottom:14px}\n  .nzn-desc .specs-table{width:100%;border-collapse:collapse;margin-bottom:32px;font-family:'DM Sans',sans-serif;font-size:14px}\n  .nzn-desc .specs-table tr{border-bottom:1px solid #ebebeb}\n  .nzn-desc .specs-table tr:last-child{border-bottom:none}\n  .nzn-desc .specs-table td{padding:10px 8px}\n  .nzn-desc .specs-table td:first-child{color:#888;width:42%;font-size:14px}\n  .nzn-desc .specs-table td:last-child{font-weight:600;color:#1a1a1a}\n  .nzn-desc .uses-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:32px}\n  .nzn-desc .use-item{background:#f7f7f7;border-left:3px solid #e07e2c;padding:12px 14px;font-family:'DM Sans',sans-serif;font-size:13.5px;line-height:1.5;color:#2a2a2a}\n  .nzn-desc .note{background:#fafafa;border:1px solid #e8e8e8;border-radius:4px;padding:14px 16px;font-family:'DM Sans',sans-serif;font-size:13px;color:#888;line-height:1.6}\n  .nzn-desc .note strong{color:#555}\n  .nzn-desc .setup-box{background:#f0f7ff;border-left:3px solid #4a90d9;padding:14px 16px;font-family:'DM Sans',sans-serif;font-size:13px;color:#2c4a6e;line-height:1.7;margin-bottom:32px;border-radius:0 4px 4px 0}\n  .nzn-desc .faq-item{margin-bottom:12px}\n  .nzn-desc .faq-q{font-family:'DM Sans',sans-serif;font-size:13.5px;font-weight:700;color:#1a1a1a;margin-bottom:3px}\n  .nzn-desc .faq-a{font-family:'DM Sans',sans-serif;font-size:13.5px;color:#555;line-height:1.5;padding-left:14px;border-left:2px solid #e07e2c}\n  .nzn-desc hr.divider{border:none;border-top:1px solid #ebebeb;margin:28px 0}\n\u003c\/style\u003e\n\u003cdiv class=\"nzn-desc\" style=\"max-width:1200px;margin:0 auto;\"\u003e\n  \u003cp class=\"tagline\"\u003eCompact mono audio output module built around the SC8002B Class AB amplifier IC. Includes an onboard speaker and adjustable volume potentiometer — ready to add tones, alerts, and sound feedback to any 3.3V or 5V microcontroller project with just three wires.\u003c\/p\u003e\n  \u003chr class=\"divider\"\u003e\n  \u003cp class=\"section-title\"\u003eSpecifications\u003c\/p\u003e\n  \u003ctable class=\"specs-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eKeyestudio SC8002B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAmplifier IC\u003c\/td\u003e\n\u003ctd\u003eSC8002B (Mono, Class AB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSignal Gain\u003c\/td\u003e\n\u003ctd\u003e~8.5×\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e3-pin header (S \/ V \/ G)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVolume Control\u003c\/td\u003e\n\u003ctd\u003eAdjustable potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd\u003e8Ω (±15%)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRated Power\u003c\/td\u003e\n\u003ctd\u003e0.1W (max 0.15W)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e800 – 4000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResonant Frequency\u003c\/td\u003e\n\u003ctd\u003e1500 Hz (±20%)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSound Output\u003c\/td\u003e\n\u003ctd\u003e≥80 dB @ 0.1W, 10cm, 1.5kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e−20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n  \u003chr class=\"divider\"\u003e\n  \u003cp class=\"section-title\"\u003eWiring\u003c\/p\u003e\n  \u003ctable class=\"specs-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003eS — Signal\u003c\/td\u003e\n\u003ctd\u003ePWM signal input from microcontroller (e.g. Arduino tone() pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eV — VCC\u003c\/td\u003e\n\u003ctd\u003e3.3V or 5V power supply positive\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eG — GND\u003c\/td\u003e\n\u003ctd\u003ePower supply ground\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n  \u003cdiv class=\"setup-box\"\u003eConnect S to any PWM-capable digital pin on your Arduino and call \u003cstrong\u003etone(pin, frequency)\u003c\/strong\u003e to produce sound. Always set the onboard potentiometer to minimum volume before powering on — increase gradually once running. The signal input expects a PWM square wave, not a raw HIGH\/LOW or analog audio line.\u003c\/div\u003e\n  \u003chr class=\"divider\"\u003e\n  \u003cp class=\"section-title\"\u003eWhat's Included\u003c\/p\u003e\n  \u003ctable class=\"specs-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1 ×\u003c\/td\u003e\n\u003ctd\u003eKeyestudio SC8002B Audio Amplifier Module (speaker pre-installed)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n  \u003chr class=\"divider\"\u003e\n  \u003cp class=\"section-title\"\u003eCommon Uses\u003c\/p\u003e\n  \u003cdiv class=\"uses-grid\"\u003e\n    \u003cdiv class=\"use-item\"\u003eTones and melodies via Arduino's tone() function\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eAudible alerts for sensor triggers and alarm systems\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eSound feedback in robotics and interactive projects\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eSimple audio output when paired with a DFPlayer Mini\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eInteractive learning kits and STEM education builds\u003c\/div\u003e\n    \u003cdiv class=\"use-item\"\u003eButton click sounds, error beeps and status chimes\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003chr class=\"divider\"\u003e\n  \u003cp class=\"section-title\"\u003eCommon Questions\u003c\/p\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cdiv class=\"faq-q\"\u003eWill this work with a Raspberry Pi or other 3.3V boards?\u003c\/div\u003e\n    \u003cdiv class=\"faq-a\"\u003eYes — the module operates on 3.3V to 5V and is compatible with any microcontroller that can output a PWM signal, including Raspberry Pi, ESP32, and STM32 boards.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cdiv class=\"faq-q\"\u003eCan I play music or voice audio through it?\u003c\/div\u003e\n    \u003cdiv class=\"faq-a\"\u003eThis module handles amplification only and is optimised for PWM square wave input. For MP3 or WAV playback, pair it with an audio source module such as a DFPlayer Mini.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003cdiv class=\"faq-q\"\u003eThe sound is distorted — what should I check?\u003c\/div\u003e\n    \u003cdiv class=\"faq-a\"\u003eTurn the potentiometer down before powering on and increase gradually. Feeding a full-strength signal into the speaker without care can cause distortion or damage the speaker cone.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003chr class=\"divider\"\u003e\n  \u003cp class=\"note\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Signal input expects a PWM square wave — not a raw digital HIGH\/LOW or analog audio line. A basic datasheet is available at nznelectronics.co.nz\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NZN Electronics","offers":[{"title":"Default Title","offer_id":42644996587616,"sku":"MOD-SC8002B-AMP","price":10.25,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/Keyestudio-Pin-Straighton.png?v=1778273430","url":"https:\/\/www.nznelectronics.co.nz\/products\/sc8002b-audio-module","provider":"NZN Electronics","version":"1.0","type":"link"}