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× 2308
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…
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microcontroller× 1637
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…
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power-supply× 1058
An electronic device which supplies electrical energy to a load. Can be AC or DC input. Typically DC output.
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led× 888
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…
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pic× 831
a brand of 8, 16, and 32 bit RISC microcontrollers manufactured by Microchip. "PIC" originally was an acronym for "Peripheral Interface Controller".
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power× 796
a primary concern for the design under discussion. Use the "low-power" tag when that applies.
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voltage× 729
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…
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transistors× 692
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)
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batteries× 665
a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy
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pcb× 655
the acronym to Printed Circuit Board. A PCB is a carrier for the circuit's components and their electrical connections.
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capacitor× 650
A fundamental electronic component that stores energy in an electric field, commonly used in filtering applications.
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usb× 610
Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.
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digital-logic× 607
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…
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avr× 582
a 8- and 32-bit microcontroller core developed by Atmel. AVR was chosen as microcontroller for the popular Arduino SBCs.
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sensor× 571
Sensors convert a physical quantity (e.g. temperature, pressure) into an electrical signal.
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op-amp× 536
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…
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circuit× 514
nearly useless. Consider using more specific tags to narrow your question down.
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current× 507
Flow of electric charge - typically movement of charge carriers, such as electrons. Measured in amperes (A).
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fpga× 503
a logic chip that is configured by the customer after manufacturing—hence "field-programmable".
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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}\$)
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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…
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audio× 451
Questions about designing electronics for measuring, processing, and amplifying audio signals.
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motor× 435
An electrical actuator converting electrical energy into rotational motion.
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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.
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switches× 414
Devices to interrupt or route a signal or power one of several ways.
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amplifier× 414
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)
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rf× 386
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.
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serial× 369
transmitted as a sequence in time. Main advantage: much less wires needed. Main disadvantage: Higher bandwidth for the same throughput.
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adc× 361
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.
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analog× 350
Analog circuits have a range of voltages, rather than just two as in digital logic.
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integrated-circuit× 340
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…
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relay× 322
an electrically controlled switch. Electromechanical relays use an electromagnet to activate mechanical contacts, solid-state relays use semiconductor switches.
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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, …
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wireless× 316
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…
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dc× 314
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.
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ac× 311
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.
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