{"product_id":"lm358-adjustable-square-wave-signal-generator-module","title":"LM358 Square Wave Signal Generator Module (NE555 Upgrade PWM)","description":"\u003cp data-start=\"473\" data-end=\"808\"\u003eTake your electronics development to the next level with this \u003cstrong data-start=\"535\" data-end=\"577\"\u003eLM358 Adjustable Square Wave Generator\u003c\/strong\u003e, widely regarded as an \u003cstrong data-start=\"601\" data-end=\"627\"\u003eNE555 upgrade solution\u003c\/strong\u003e. Compared to the traditional NE555 oscillator, this module offers higher stability, wider adjustment range, and better output drive—perfect for engineers, students, and DIY makers.\u003c\/p\u003e\n\u003ch4 data-start=\"810\" data-end=\"847\"\u003e\u003cstrong data-start=\"814\" data-end=\"847\"\u003eWhy This Is an NE555 Upgrade:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"850\" data-end=\"985\"\u003e\n\u003cstrong data-start=\"850\" data-end=\"872\"\u003eGreater Stability:\u003c\/strong\u003e LM358 op-amp–based oscillation provides lower distortion and more stable frequency than the classic NE555 timer.\u003c\/li\u003e\n\u003cli data-start=\"988\" data-end=\"1130\"\u003e\n\u003cstrong data-start=\"988\" data-end=\"1016\"\u003eDual Adjustment Control:\u003c\/strong\u003e Independent multi-turn potentiometers (\u003cstrong data-start=\"1056\" data-end=\"1064\"\u003eW103\u003c\/strong\u003e for frequency, \u003cstrong data-start=\"1080\" data-end=\"1088\"\u003eW504\u003c\/strong\u003e for duty cycle) allow precise PWM tuning.\u003c\/li\u003e\n\u003cli data-start=\"1133\" data-end=\"1294\"\u003e\n\u003cstrong data-start=\"1133\" data-end=\"1155\"\u003eHigh Drive Output:\u003c\/strong\u003e Features a built-in \u003cstrong data-start=\"1176\" data-end=\"1195\"\u003e9012 transistor\u003c\/strong\u003e, enabling up to \u003cstrong data-start=\"1212\" data-end=\"1221\"\u003e500mA\u003c\/strong\u003e output current—enough to directly drive relays, LEDs, or mini DC motors.\u003c\/li\u003e\n\u003cli data-start=\"1297\" data-end=\"1414\"\u003e\n\u003cstrong data-start=\"1297\" data-end=\"1320\"\u003eWide Voltage Input:\u003c\/strong\u003e Accepts \u003cstrong data-start=\"1329\" data-end=\"1339\"\u003e5V–12V\u003c\/strong\u003e, making it ideal for Arduino, Raspberry Pi, and laboratory power supplies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1416\" data-end=\"1442\"\u003e\u003cstrong data-start=\"1420\" data-end=\"1442\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1445\" data-end=\"1507\"\u003e\n\u003cstrong data-start=\"1445\" data-end=\"1459\"\u003eMain Chip:\u003c\/strong\u003e LM358 (Op-Amp multivibrator, NE555 alternative)\u003c\/li\u003e\n\u003cli data-start=\"1510\" data-end=\"1536\"\u003e\n\u003cstrong data-start=\"1510\" data-end=\"1522\"\u003eVoltage:\u003c\/strong\u003e 5V – 12V DC\u003c\/li\u003e\n\u003cli data-start=\"1539\" data-end=\"1584\"\u003e\n\u003cstrong data-start=\"1539\" data-end=\"1560\"\u003eOutput Amplitude:\u003c\/strong\u003e Follows input voltage\u003c\/li\u003e\n\u003cli data-start=\"1587\" data-end=\"1641\"\u003e\n\u003cstrong data-start=\"1587\" data-end=\"1607\"\u003eFrequency Range:\u003c\/strong\u003e 0.07Hz – 2kHz (wide adjustable)\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1671\"\u003e\n\u003cstrong data-start=\"1644\" data-end=\"1659\"\u003eDuty Cycle:\u003c\/strong\u003e 0% – 100%\u003c\/li\u003e\n\u003cli data-start=\"1674\" data-end=\"1726\"\u003e\n\u003cstrong data-start=\"1674\" data-end=\"1693\"\u003eOutput Current:\u003c\/strong\u003e ~500mA (with transistor drive)\u003c\/li\u003e\n\u003cli data-start=\"1729\" data-end=\"1765\"\u003e\n\u003cstrong data-start=\"1729\" data-end=\"1744\"\u003eDimensions:\u003c\/strong\u003e 31mm x 11mm x 23mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1767\" data-end=\"1787\"\u003e\u003cstrong data-start=\"1771\" data-end=\"1787\"\u003ePerfect For:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1790\" data-end=\"1825\"\u003eReplacing NE555-based oscillators\u003c\/li\u003e\n\u003cli data-start=\"1828\" data-end=\"1857\"\u003ePWM dimming \/ speed control\u003c\/li\u003e\n\u003cli data-start=\"1860\" data-end=\"1896\"\u003eStepper motor driver pulse testing\u003c\/li\u003e\n\u003cli data-start=\"1899\" data-end=\"1935\"\u003eArduino\/MCU pulse signal injection\u003c\/li\u003e\n\u003cli data-start=\"1938\" data-end=\"1971\"\u003eLaboratory waveform experiments\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":46310374867095,"sku":"21PS001204","price":42.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/adjustable-pulse-frequency-duty-cycle-module-angle.jpg?v=1764236818","url":"https:\/\/scccltd.com\/en-tw\/products\/lm358-adjustable-square-wave-signal-generator-module","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}