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| # | Post Title | Result Info | Date | User | Forum |
| Can you build an automatic light dimmer with Arduino? | 13 Relevance | 11 months ago | Roshan | Arduino | |
| Is it possible to build an Automatic light dimmer using an Arduino? I'm interested in adjusting the brightness of a light based on ambient light levels using a sensor like an LDR. What components would be required, and how would the dimming be controlled, especially for an AC light? Are there any safety considerations I should know when dealing with AC dimming? Any guidance or example circuits would be helpful. | |||||
| SSD Solution Available | 5 Relevance | 6 months ago | laborasphere | Equipments | |
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| @BRAZIL SSD CHEMICAL SOLUTION +27672716140 | 5 Relevance | 6 months ago | popohu | Arduino | |
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| Answer to: How does an LDR work? | 5 Relevance | 1 year ago | Deboojit | Theoretical questions | |
| A Light Dependent Resistor (LDR), or photoresistor, is a passive component that changes its resistance based on light intensity. It is made of a semiconductor material like cadmium sulfide (CdS), which exhibits photoconductivity—its resistance decreases as light exposure increases. In darkness, the resistance is high (megaohm range), while it drops significantly (to hundreds of ohms) in bright light. This property makes LDRs useful in applications such as Automatic lighting, light meters, and alarm systems. They are commonly used in voltage divider circuits to provide a variable output voltage that microcontrollers or analog circuits can read. | |||||
| Answer to: Suggestions for Good ATtiny85 Projects | 5 Relevance | 1 year ago | Admin | Circuits and Projects | |
| Here are 15 amazing project ideas you can create using the ATtiny85 microcontroller: LED Matrix AnimationProgram an LED matrix to display scrolling text or animations using the ATtiny85. Miniature Digital ThermometerBuild a small thermometer using a temperature sensor like LM35 or DS18B20 and display the data on a tiny OLED screen. IR Remote Control SystemDecode signals from an IR remote to control LEDs, fans, or other appliances. Sound Reactive LightsCreate an audio visualizer where LEDs blink in response to sound or music using a microphone module. Capacitive Touch SwitchMake a touch-sensitive button using a conductive surface and the ATtiny85, perfect for smart home switches. Portable Motion DetectorUse a PIR sensor to build a portable motion detection alarm system for security purposes. USB Volume ControllerTurn your ATtiny85 into a USB HID device to control your computer’s volume with a rotary encoder. Tiny Weather StationMeasure temperature and humidity with sensors like DHT11/DHT22 and display the readings on an OLED. Ultrasonic Distance MeterUse an ultrasonic sensor to measure distances and display them on a small display. Blinking Bicycle LightCreate a small, energy-efficient blinking tail light for a bicycle, powered by a coin cell battery. Minimalist USB Game ControllerBuild a simple game controller for retro-style games with buttons connected to the ATtiny85. PWM Fan Speed ControllerControl the speed of a DC fan using pulse-width modulation and a temperature sensor for feedback. ATtiny85 Robot BrainPower a small robot with an ATtiny85, controlling motors and sensors for basic navigation. Night Light with Light SensorCreate an Automatic night light that turns on in low-light conditions using an LDR and LEDs. Tiny Digital StopwatchDesign a simple stopwatch with start, stop, and reset functions using push buttons and an OLED display. These projects highlight the versatility of the ATtiny85 and can help you learn more about electronics, programming, and sensors. This site is hands down the best for projects related to ATtiny85. So, definitely check it out. | |||||
