# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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 arduino× 2302 an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating inte… microcontroller× 1634 A device which includes a central processing unit (CPU), memory, and (generally) an assortment of I/O peripherals (UART, ADC, DAC, general-purpose I/O, I2C, etc.) in a tightly-coupled standalone packa… power-supply× 1056 An electronic device which supplies electrical energy to a load. Can be AC or DC input. Typically DC output. led× 885 a light emitting diode. Lighting a LED is considered the "Hello world" of a circuit design, and it can be as simple as putting a series resistor or can get more complicated, involving PWM and… pic× 826 a brand of 8, 16, and 32 bit RISC microcontrollers manufactured by Microchip. "PIC" originally was an acronym for "Peripheral Interface Controller". power× 796 a primary concern for the design under discussion. Use the "low-power" tag when that applies. voltage× 726 Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be const… transistors× 690 a semiconductor device that can amplify signals and switch power. Most used types are bipolar (BJT, for Bipolar Junction Transistor) and MOSFET (FET, for Field Effect Transistor) batteries× 662 a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy pcb× 653 the acronym to Printed Circuit Board. A PCB is a carrier for the circuit's components and their electrical connections. capacitor× 650 A fundamental electronic component that stores energy in an electric field, commonly used in filtering applications. usb× 609 Universal Serial Bus. If your question relates to a specific chip, please mention it in your question. digital-logic× 605 Digital electronics use a finite number of states, unlike analog electronics that treat continuous signals. Digital logic is used to perform arithmetic operations with electric signals, and constitute… avr× 581 a 8- and 32-bit microcontroller core developed by Atmel. AVR was chosen as microcontroller for the popular Arduino SBCs. sensor× 568 Sensors convert a physical quantity (e.g. temperature, pressure) into an electrical signal. op-amp× 534 a high gain analog voltage amplifier with differential high impedance inputs, and a low impedance output. A basic building block in signal processing, like as ampl… circuit× 510 nearly useless. Consider using more specific tags to narrow your question down. current× 505 Flow of electric charge - typically movement of charge carriers, such as electrons. Measured in amperes (A). fpga× 503 a logic chip that is configured by the customer after manufacturing—hence "field-programmable". resistors× 472 A resistor obeys Ohm's law (V=IR); the current through it is equal to the voltage across it divided by the resistance (equivalently $I=\frac{V}{R}$) mosfet× 460 An transconductance (using voltage to control current) electronic component used for switching and amplification. Acronym for Metal-Oxide-Semiconductor Field-Effect Transistor. (from http://en.wikiped… audio× 451 Questions about designing electronics for measuring, processing, and amplifying audio signals. motor× 434 An electrical actuator converting electrical energy into rotational motion. voltage-regulator× 432 an analog circuit that produces a stable output voltage that doesn't vary with input voltage or load changes. Switching regulators are much more efficient than linear ones. switches× 414 Devices to interrupt or route a signal or power one of several ways. amplifier× 412 adapt the range of the signal to a requirement, to make it more robust for transmission, or to satisfy interface requirement (like input/output impedance) rf× 385 Short for Radio-Frequency. Frequencies at which radiation (intentional or not) plays a role. Typically associated with wireless communications, but also relevant for high-speed PCB design. serial× 369 transmitted as a sequence in time. Main advantage: much less wires needed. Main disadvantage: Higher bandwidth for the same throughput. adc× 360 an Analog to Digital Converter. This device converts analog signals into digital form. It is mainly used by the digital circuitry to take analog measurements. analog× 348 Analog circuits have a range of voltages, rather than just two as in digital logic. integrated-circuit× 338 an electronic circuit built onto a single plate of a semiconductor material, normally silicon. Modern ICs may contain billions of transistors and they have played a major… relay× 322 an electrically controlled switch. Electromechanical relays use an electromagnet to activate mechanical contacts, solid-state relays use semiconductor switches. pcb-design× 322 About designing the boards which carry the components of an electronic circuit. For questions about getting them built instead use PCB-fabrication. If your question is specific to a certain CAD tool, … wireless× 315 Using other than a wired connection to transfer signals or power. Includes optical and (ultra)sound, but most often refers to RF (radio-frequent). Distances can be as low as centimeters (e.g. RFID), t… dc× 312 DC stands for Direct Current, which means the flow of electric charge in a single direction. Examples of a DC source are batteries, solar panels, dynamos. ac× 310 refers to alternating current mains power. It usually applies to voltages with >100V RMS, but can also be used for ex. 24V industrial AC power.