Digital Electronics & Logic Circuit Calculators 1-Bit Controlled Subtract Multiplexer Simulator Simulate a 1-bit controlled subtract multiplexer circuit by selecting control inputs, viewing intermediate logic states, and instantly analyzing subtraction outputs, borrow generation, and digital circuit behavior. Open Tool
Digital Electronics & Logic Circuit Calculators 1-Bit Full Adder Simulator Simulate a 1-Bit Full Adder circuit online by entering binary inputs A, B, and Carry-In. Instantly calculate Sum and Carry-Out while understanding full adder logic, truth tables, and binary addition. Open Tool
Digital Electronics & Logic Circuit Calculators 1-Bit Full Subtractor Simulator Simulate a 1-Bit Full Subtractor circuit online by entering binary inputs A, B, and Borrow-In. Instantly calculate Difference and Borrow-Out while understanding binary subtraction, truth tables, and digital logic. Open Tool
Digital Electronics & Logic Circuit Calculators 1-Bit Multiplier Adder Simulator Simulate a 1-Bit Multiplier Adder circuit online by entering binary inputs and instantly calculating multiplication, addition, carry generation, and output logic. Ideal for learning digital electronics and binary arithmetic. Open Tool
Popular Electronic Color Code Calculators & Charts 3, 4 & 5 Band Inductor Color Code Calculator (MIL-C-15305) Decode 3, 4, and 5-band axial RF inductors into microhenries (µH), tolerance rating, and military identifier per MIL-C-15305 specifications. Open Tool
Popular Electronic Color Code Calculators & Charts 3, 4, 5 & 6 Band Resistor Color Code Calculator (IEC 60062) Calculate resistance, tolerance, and temperature coefficient (TCR) for 3, 4, 5, and 6-band resistors per international IEC 60062 and EIA-RS-279 standards. Open Tool
Digital Electronics & Logic Circuit Calculators 4-Bit Attempt-Subtraction Divider Simulator Simulate a 4-Bit Attempt-Subtraction Divider circuit online by performing step-by-step binary division using the attempt-subtraction method. View quotient, remainder, intermediate subtraction stages, and binary division logic instantly. Open Tool
Digital Electronics & Logic Circuit Calculators 4-Bit Borrow-Propagate Subtractor Simulator Simulate a 4-Bit Borrow-Propagate Subtractor circuit online by entering binary values and instantly calculating Difference, Borrow-Out, and borrow propagation across all four bits. Ideal for learning digital subtraction and binary arithmetic. Open Tool
Digital Electronics & Logic Circuit Calculators 4-Bit Carry-Propagate Adder Simulator Simulate a 4-Bit Carry-Propagate Adder circuit online by entering binary inputs and instantly calculating Sum, Carry-Out, and carry propagation across all four bits. Perfect for understanding binary addition and digital arithmetic circuits. Open Tool
Digital Electronics & Logic Circuit Calculators 4-Bit Carry-Propagate Multiplier Simulator Simulate a 4-Bit Carry-Propagate Multiplier online by entering two binary numbers and instantly calculating the binary product while visualizing carry propagation and multiplication stages. Ideal for learning digital arithmetic and multiplier circuit design. Open Tool
Popular Analog Electronics & Op-Amp Calculators 555 Astable Multivibrator Frequency & Duty Cycle Calculator Calculate 555 timer astable multivibrator frequency, duty cycle, pulse width, ON time, OFF time, resistor values, capacitor values, and oscillator timing parameters. Open Tool
Popular Digital Electronics & Logic Circuit Calculators 555 Timer Astable Circuit Calculator Calculate the output frequency, duty cycle, pulse width, period, and timing intervals of a 555 timer astable multivibrator circuit instantly using resistor and capacitor values. Open Tool
Popular Digital Electronics & Logic Circuit Calculators 555 Timer Monostable Circuit Calculator Calculate pulse width, output time delay, resistor-capacitor values, and timing intervals for a 555 Timer monostable (one-shot) circuit instantly using standard NE555 design formulas. Open Tool
RF & Microwave Engineering Calculators ACPR Calculator (Adjacent Channel Power Ratio / 3GPP) Calculate Adjacent Channel Power Ratio (ACPR / ACLR) to evaluate RF power amplifier linearity and spectral regrowth per 3GPP standards. Open Tool
Development Board Pinouts & GPIO Reference Adafruit Board Pinout Reference Find Adafruit development board pinouts instantly with this free Adafruit Board Pinout Reference. View GPIO layouts, power pins, communication interfaces, onboard peripherals, and pin configurations for Adafruit microcontroller and development boards. Open Tool
Engineering Utility Tools & Converters ADC (Analog to Digital Converter) Calculator (Resolution & LSB) Calculate quantization step size (LSB voltage), ADC digital output code, resolution, and input analog voltage for 8 to 24-bit ADCs. Open Tool
Popular Engineering Utility Tools & Converters Adjustable Voltage Regulator Calculator (LM317, LM338, LM350 & LDO) Calculate output voltage (Vout), program resistors (R1 & R2), and power dissipation for LM317, LM338, and adjustable linear LDO regulators. Open Tool
Popular Power Electronics & SMPS Design Calculators Adjustable Voltage Regulator Resistor Divider Calculator (LM317 / LDO) Calculate output voltage and feedback resistor divider values (R1 & R2) for LM317, LM1117, and adjustable linear LDO regulators. Open Tool
RF & Microwave Engineering Calculators Antenna Azimuth and Elevation Calculator (Satellite Look Angle) Calculate true azimuth angle, elevation angle, and polarization tilt for directional antennas and satellite earth station alignment. Open Tool
RF & Microwave Engineering Calculators Antenna Downtilt & Cell Coverage Calculator (3GPP / Cellular) Calculate mechanical and electrical downtilt angles and ground coverage radius for cellular base station and wireless network antennas. Open Tool
Popular Development Board Pinouts & GPIO Reference Arduino Board Pinout Reference Find Arduino board pinouts instantly with this free Arduino Board Pinout Reference. View GPIO layouts, digital and analog pins, PWM, SPI, I2C, UART, power pins, and onboard peripherals for popular Arduino development boards. Open Tool
Electronics Engineering Resources, Charts & Tables ASCII Table Browse the complete ASCII Table with decimal, hexadecimal, octal, binary, HTML entity, and character values. A quick reference for programmers, embedded developers, electronics engineers, networking professionals, and students. Open Tool
PCB Design & Trace Calculators (IPC Standards) Asymmetric Stripline Impedance Calculator (Offset Stripline) Calculate characteristic impedance (Z0) for offset (asymmetric) stripline traces positioned unequally between two reference ground planes. Open Tool
Popular Connector Pinouts & Wiring Diagrams Audio Connector Pinout Reference Find audio connector pinouts instantly with this free Audio Connector Pinout Reference. View pin configurations, wiring diagrams, signal assignments, and connector layouts for headphones, microphones, speakers, professional audio systems, electronics repair, and engineering. Open Tool
Electronics Engineering Resources, Charts & Tables Automotive Fuse Color Code Chart Browse standard automotive fuse color codes with ampere ratings, blade fuse types, mini, standard, maxi, JCASE, and micro fuse identification for vehicle electrical systems, repairs, and troubleshooting. Open Tool
Electronic Color Code Calculators & Charts Automotive Fuse Color Code Chart (ISO 8820 / SAE J1284) Identify automotive blade fuse amperage ratings and continuous current limits by standard body color codes per ISO 8820 and SAE J1284. Open Tool
Electronics Engineering Resources, Charts & Tables AWG & SWG Wire Size Table Compare AWG, SWG, and metric wire sizes with conductor diameter, cross-sectional area, current capacity, resistance, and electrical specifications. Ideal for electrical wiring, cable selection, electronics, and engineering applications. Open Tool
RF & Microwave Engineering Calculators Balanced Attenuator Calculator (H-Pad & O-Pad / 600Ω Audio & RF) Calculate resistor values for balanced H-pad and O-pad attenuators to achieve precise signal attenuation in balanced audio and RF lines. Open Tool
Development Board Pinouts & GPIO Reference Banana Pi Pinout Reference Find Banana Pi pinouts instantly with this free Banana Pi Pinout Reference. View GPIO layouts, power pins, communication interfaces, board connectors, and pin configurations for Banana Pi single-board computers used in embedded systems, IoT, robotics, and education. Open Tool
Popular RF & Microwave Engineering Calculators Bandpass Filter Calculator (Butterworth & Chebyshev / LC & Active) Calculate component values (L, C, R), center frequency (f0), bandwidth, and Q factor for passive and active Butterworth and Chebyshev bandpass filters. Open Tool