Development Board Pinouts & GPIO Reference Netduino Pinout Reference Find Netduino pinouts instantly with this free Netduino Pinout Reference. View GPIO layouts, power pins, communication interfaces, PWM, ADC pins, and pin configurations for Netduino development boards. Open Tool
RF & Microwave Engineering Calculators Noise Figure & Noise Temperature Converter (NF & Te / IEEE) Convert between Noise Figure (NF in dB), Noise Factor (F), and Equivalent Noise Temperature (Te in Kelvin) per IEEE standards. Open Tool
Popular Analog Electronics & Op-Amp Calculators Non-Inverting Op-Amp Resistor Calculator Calculate non-inverting op-amp resistor values, voltage gain, feedback resistor, input resistor, output voltage, input impedance, and amplifier parameters for analog circuit design. Open Tool
Development Board Pinouts & GPIO Reference ODROID Pinout Reference Find ODROID pinouts instantly with this free ODROID Pinout Reference. View GPIO layouts, power pins, communication interfaces, expansion headers, and pin configurations for ODROID development boards. Open Tool
Popular Passive Component Calculators (RLC Circuits) Ohm's Law Calculator (Voltage, Current, Resistance & Power) Calculate Voltage (V), Current (I), Resistance (R), and Power (P in Watts) instantly using the fundamental Ohm's Law and Joule's Law wheel. Open Tool
Development Board Pinouts & GPIO Reference Onion Pi Pinout Reference Find Onion Pi pinouts instantly with this free Onion Pi Pinout Reference. View GPIO layouts, power pins, communication interfaces, expansion headers, and pin configurations for Onion Pi development boards. Open Tool
Analog Electronics & Op-Amp Calculators Op-Amp Slew Rate Calculator Calculate op-amp slew rate, maximum output frequency, output voltage swing, rise time, signal bandwidth, and large-signal performance for analog amplifier design. Open Tool
Analog Electronics & Op-Amp Calculators Op-Amp Voltage and Gain Calculator Calculate op-amp voltage gain, output voltage, input voltage, closed-loop gain, feedback resistor, input resistor, and amplifier parameters for precision analog circuit design. Open Tool
Passive Component Calculators (RLC Circuits) Op-Amp Voltage Summing Circuit Calculator (Inverting & Non-Inverting) Calculate output voltage and feedback resistor values for multi-input inverting and non-inverting op-amp voltage summing circuits. Open Tool
Development Board Pinouts & GPIO Reference Orange Pi Pinout Reference Find Orange Pi pinouts instantly with this free Orange Pi Pinout Reference. View GPIO layouts, power pins, communication interfaces, expansion headers, and pin configurations for Orange Pi single-board computers. Open Tool
Passive Component Calculators (RLC Circuits) Parallel Plate Capacitance Calculator (Area, Distance & Dielectric) Calculate capacitance (pF/nF/µF), electric field strength, and stored charge for parallel plate capacitors based on geometry and dielectric constant. Open Tool
Cable, Wire Gauge & Voltage Drop Calculators Parallel Wire Inductance Calculator (Twin-Lead Transmission Line) Calculate loop inductance, characteristic impedance, and mutual coupling per unit length for two parallel conductors in free space or dielectric. Open Tool
Development Board Pinouts & GPIO Reference Particle Board Pinout Reference Find Particle development board pinouts instantly with this free Particle Board Pinout Reference. View GPIO layouts, power pins, communication interfaces, PWM, ADC pins, and connector configurations. Open Tool
Popular Connector Pinouts & Wiring Diagrams PC Connector Pinout Reference Find PC connector pinouts instantly with this free PC Connector Pinout Reference. View motherboard, power supply, storage, cooling, USB, display, and internal PC connector pin layouts for computer repair, assembly, engineering, and education. Open Tool
Popular PCB Design & Trace Calculators (IPC Standards) PCB Trace Resistance Calculator (IPC-2152 / IPC-2221) Calculate DC resistance, voltage drop, and power dissipation of internal and external PCB copper traces per IPC-2152 standards. Open Tool
Power Electronics & SMPS Design Calculators Peak Voltage (Vp / Vmax) Calculator (RMS, Peak-to-Peak & Avg) Calculate peak voltage (Vp / Vpeak) from RMS voltage, average voltage, and peak-to-peak voltage for standard AC electrical power waveforms. Open Tool
Power Electronics & SMPS Design Calculators Peak-to-Peak Voltage (Vp-p) Calculator (Oscilloscope & AC Power) Convert between Peak-to-Peak voltage (Vp-p), amplitude (Vp), and RMS voltage (Vrms) for sinusoidal, square, and complex AC waveforms. Open Tool
RF & Microwave Engineering Calculators Pi Attenuator Calculator (50Ω & 75Ω RF Impedance) Calculate series and shunt resistor values for symmetrical Pi-pad RF attenuators for 50Ω, 75Ω, or custom characteristic impedance. Open Tool
Analog Electronics & Op-Amp Calculators Pi-Match Impedance Matching Calculator Calculate Pi-match impedance matching network components including inductance, capacitance, quality factor (Q), source impedance, load impedance, and operating frequency. Open Tool
Electronic Color Code Calculators & Charts Polyester Capacitor Color Code Calculator (DIN 44110 / Mylar) Decode 5-band color codes on vintage and modern polyester (Mylar / Tropical Fish) capacitors into capacitance, tolerance, and DC working voltage. Open Tool
RF & Microwave Engineering Calculators Power Added Efficiency (PAE) Calculator (RF Power Amplifiers) Calculate Power Added Efficiency (PAE %) and Drain/Collector Efficiency for RF power amplifiers taking input RF drive power into account. Open Tool
Electrical & Engineering Calculators PPM to Hz & Frequency Offset Converter (Crystal Oscillator / Clock) Convert crystal oscillator and clock frequency tolerance from Parts Per Million (PPM) into absolute frequency deviation in Hertz (Hz). Open Tool
Electronics Engineering Resources, Charts & Tables PT100 Conversion Chart Browse the PT100 conversion chart with temperature-to-resistance values based on IEC 60751 standards for platinum RTD sensors used in industrial process control, instrumentation, and automation systems. Open Tool
Development Board Pinouts & GPIO Reference Pycom Board Pinout Reference Find Pycom development board pinouts instantly with this free Pycom Board Pinout Reference. View GPIO layouts, power pins, communication interfaces, ADC, DAC, PWM, and connector configurations. Open Tool
Electronic Component Packages & Footprint Guide Quad Flat Package (QFP) Quad Flat Package (QFP) guide covering package dimensions, pin layout, thermal characteristics, PCB footprint, SMT assembly, applications, and semiconductor package reference. Open Tool
Passive Component Calculators (RLC Circuits) Quartz Crystal Parameter & Q-Factor Calculator (Butterworth-Van Dyke) Calculate motional inductance (Lm), capacitance (Cm), series/parallel resonance, and loaded Q-factor using the BVD equivalent circuit model. Open Tool
RF & Microwave Engineering Calculators Radar Cross Section (RCS) Calculator (IEEE Std 686) Calculate Radar Cross Section (RCS in m² and dBsm) for spheres, flat plates, and complex targets per IEEE Std 686 radar definitions. Open Tool
RF & Microwave Engineering Calculators Radar Maximum Range Calculator (Standard Radar Equation) Calculate theoretical maximum radar detection range (Rmax) based on transmitter peak power, antenna gain, target RCS, and sensitivity. Open Tool
RF & Microwave Engineering Calculators Radar Target Gain Factor Calculator (Radar Range Equation) Calculate radar target gain factor and received echo power return using the standard monostatic radar range equation. Open Tool
Electronics Engineering Resources, Charts & Tables Radio Frequencies Chart Browse the complete radio frequency spectrum with frequency bands, wavelength ranges, standard RF classifications, wireless communication applications, and engineering reference information. Open Tool