{"product_id":"acs712-current-sensor-module-5-a-20-a-30-a-range","title":"4 Pack ACS712 Current Sensor Module – 5 A \/ 20 A \/ 30 A Range","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe KY‑008 5 V Laser Sensor Module is a compact laser diode board that emits a small, intense red laser dot when powered. It integrates the laser diode, current‑limiting resistor, and basic support components on a small PCB, so you can drive it directly from a 5 V supply or a microcontroller pin (within current limits) without designing a constant‑current driver.\u003c\/p\u003e\n\u003cp\u003eWith a typical wavelength of around 650 nm and power in the low‑milliwatt range, this module is popular for Arduino and ESP32 projects such as laser tripwires, optical barriers, alignment markers, and simple laser‑pointer style effects. The three‑pin interface lets you connect 5 V, GND, and a signal pin, making it easy to switch the laser on and off via a digital output or PWM.\u003c\/p\u003e\n\u003ch2\u003eIdeal Uses\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLaser tripwires and optical barriers when paired with a light sensor or photodiode receiver.\u003c\/li\u003e\n\u003cli\u003eDIY alignment tools for CNC\/3D printers, jigs, or fixtures where a visible line\/dot helps positioning.\u003c\/li\u003e\n\u003cli\u003eInteractive projects and displays, such as mini laser light shows or pointing indicators (within safe power limits).\u003c\/li\u003e\n\u003cli\u003eEducational demos for laser diodes, modulation, and basic optics.\u003c\/li\u003e\n\u003cli\u003eSimple status or pointer indicators in control panels and robotics projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWorks with Arduino, ESP32, and other microcontrollers by driving the signal pin from a digital output (with proper current considerations).\u003c\/li\u003e\n\u003cli\u003eDesigned for 5 V operation; many tutorials connect VCC=5 V, GND, and a signal pin for on\/off control.\u003c\/li\u003e\n\u003cli\u003eCan be used in Raspberry Pi projects with a 5 V supply, using a transistor or driver circuit if needed to keep current off the GPIO pin.\u003c\/li\u003e\n\u003cli\u003eFits into standard “37‑in‑1” sensor kits and common KY‑series breakout collections, making it familiar to many hobbyists.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRed laser diode with typical wavelength around 650 nm, producing a visible red dot.\u003c\/li\u003e\n\u003cli\u003eTypical optical power in the 5 mW class, suitable for low‑power indicator and educational use (not for cutting\/engraving).\u003c\/li\u003e\n\u003cli\u003eOperating voltage around 3–5 V, usually used at 5 V for full brightness.\u003c\/li\u003e\n\u003cli\u003eTypical operating current around 20–30 mA, depending on module design.\u003c\/li\u003e\n\u003cli\u003eThree‑pin interface (S, VCC, GND):\u003c\/li\u003e\n\u003cli\u003eSignal (S) – connect to a microcontroller digital output.\u003c\/li\u003e\n\u003cli\u003eVCC – typically 5 V.\u003c\/li\u003e\n\u003cli\u003eGND – ground reference.\u003c\/li\u003e\n\u003cli\u003eIncludes an on‑board resistor to limit current to the laser diode, simplifying direct use with 5 V.\u003c\/li\u003e\n\u003cli\u003eSmall PCB footprint with standard header pins, easy to plug into breadboards or jumper wires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specs (Typical, KY‑008)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExact values vary slightly by manufacturer; verify your specific module:\u003c\/li\u003e\n\u003cli\u003eWavelength: ~650 nm (red).\u003c\/li\u003e\n\u003cli\u003eLaser Power: around ≤5 mW (class 3R\/3A range; check labeling).\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 3–5 V DC (commonly used at 5 V).\u003c\/li\u003e\n\u003cli\u003eOperating Current: ~20–30 mA (laser on).\u003c\/li\u003e\n\u003cli\u003eBeam Type: dot‑shaped focused beam.\u003c\/li\u003e\n\u003cli\u003ePins: 3‑pin header (S, VCC, GND).\u003c\/li\u003e\n\u003cli\u003eModule Size: small PCB roughly a couple of centimeters long (varies by vendor).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × KY‑008 5 V Laser Sensor Module\u003cbr\u003e(Variants may include different pin headers or packaging depending on supplier.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety Note\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a laser device: never point the beam at eyes, reflective surfaces, or towards people or animals; even low‑power lasers can cause eye damage if misused.\u003c\/li\u003e\n\u003cli\u003eUse appropriate enclosures and beam paths if integrating into products, and follow local regulations regarding laser safety and labeling.\u003c\/li\u003e\n\u003cli\u003ePower the module only within its rated voltage and current range; over‑voltage or bypassing the current‑limiting resistor can damage the diode or increase safety risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"sugar","offers":[{"title":"Default Title","offer_id":44922431078535,"sku":null,"price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/7763\/5719\/files\/ACS712CurrentSensorModuletop.jpg?v=1781875953","url":"https:\/\/sugarstore.dev\/products\/acs712-current-sensor-module-5-a-20-a-30-a-range","provider":"sugar","version":"1.0","type":"link"}