Ninja Blocks Kit. Temperature & Humidity Use the included Temperature & Humidity sensor to monitor your wine collection from anywhere in the world or use the Ninja Rules Engine to build the world's best thermostat.
Motion Sensor Get peace of mind by using the included wireless motion sensor to build a security system that talks to the web or simply use it to let you know when the kids are at home. Door Bell Never miss a delivery again! Window & Door Sensor The wireless Window & Door sensor takes your security system to the next level. Arduino Compatible If you want to get your coding hands dirty, the Ninja Block contains an Arduino compatible micro-controller, that you can program using the official Arduino IDE.
BeagleBone. How to Analyze Resistive Circuits Using Ohm's Law (with pictures) Ohm's law may be written [1] in 3 equivalent forms depending on what is being solved for: "V" is the voltage across the resistance (the "potential difference"), "I" is the current through the resistance, and "R" is the value of the resistance.
If the resistance is a resistor (a component having a calibrated value of resistance) it is usually labelled with "R" followed by a number, such as "R1", "R105", etc. Light Emitting Diodes (LEDs) Colour | Sizes and shapes | Resistor value | LEDs in series | LED data | Flashing | Displays Also see: Lamps Example LED: Circuit symbol: Function LEDs emit light when an electric current passes through them.
Connecting and soldering LEDs must be connected the correct way round, the diagram may be labelled a or + for anode and k or - for cathode (yes, it really is k, not c, for cathode!). Light Emitting Diodes (LEDs) How To Fix Replace Repair iPhone 4 Broken Glass DIY.
Arduino Electronics projects. Makerbot. Ultraviolet. Portable ultraviolet lamp Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, that is, in the range between 400 nm and 100 nm, corresponding to photon energies from 3 eV to 124 eV.
It is so-named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet. These frequencies are invisible to most humans except those with aphakia. Near-UV is visible to a number of insects and birds. UV light is found in sunlight and is emitted by electric arcs and specialized lights such as mercury lamps and black lights. Although ultraviolet radiation is invisible to the human eye, most people are aware of the effect it has on the skin of fair-skinned people, i.e., the suntan and sunburn. Discovery. Light-emitting diode. Parts of an LED.
Although unlabeled, the flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being forcefully pulled out via mechanical strain or vibration. An LED is often small in area (less than 1 mm2) and integrated optical components may be used to shape its radiation pattern.[5] Appearing as practical electronic components in 1962,[6] the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics. The first visible-light LEDs were also of low intensity, and limited to red. Early LEDs were often used as indicator lamps for electronic devices, replacing small incandescent bulbs. Recent developments in LEDs permit them to be used in environmental and task lighting.
History[edit] Discoveries and early devices[edit] Initial commercial development[edit] DigitalReadSerial. Learning Examples | Foundations | Hacking | Links Examples > Basics Digital Read Serial This example shows you how to monitor the state of a switch by establishing serial communication between your Arduino and your computer over USB.
Hardware Required Arduino Board A momentary switch, button, or toggle switch 10k ohm resistor breadboard hook-up wire Circuit image developed using Fritzing. Connect three wires to the Arduino board. Pushbuttons or switches connect two points in a circuit when you press them. TSL1401 Linescan Imaging Sensor Daughterboard. 3.2" LCD Touch Screen Display Kit. PIR Sensor (Rev B) Item code: 555-28027 What It Can Do Detects motion of humans or animals from as far away as 30 feetSilent operation for alarms, motion activated nightlights, holiday propsAutomatically resets after period of inactivity Passive infrared (PIR) sensors detect motion by comparing the amount of infrared radiation that reaches a pair of detectors.
When the two detectors “see” different values, the sensor indicates it as movement of an object, such as a person or an animal. PIR sensors are often used in driveway security systems, which turn on a light (but only at night) when someone approaches the house. The Parallax PIR Motion Sensor has a simple on/off output: when on, the sensor is detecting movement. A selectable jumper on the sensor lets you set working distance: L (for Long) position, the effective sensor distance is up to 30 feet. For proper operation the sensor should be allowed to warm up for 20 to 60 seconds after first applying power.
Parts List Basic Wiring Program KickStarts.