Electronics Calculators & Tools

Interactive T568A/B pinout tool for creating straight-through or crossover Ethernet cables. Includes cable category guides and use-cases.

Find and verify JTAG and SWD pinouts instantly. Select your target connector and debugger (like ST-Link, J-Link, or Picoprobe) to get an interactive wiring diagram and prevent connection errors.

Interactive reference and configuration tool for the 24‑pin USB Type‑C connector. Select common use-cases to see exactly which pins you need to connect.

Calculate skew between differential pair traces and determine required length adjustments for timing alignment.

Calculate the characteristic impedance (Z₀) of a microstrip PCB trace using Wheeler's or Hammerstad & Jensen's approximations based on your PCB stackup parameters.

Create and visualize cable harness diagrams directly by describing them in YAML. Generate instant SVG pinouts for your electronics and electrical harness projects.

Easily calculate and validate I²S and TDM clock configurations (BCLK, LRCK, MCLK) for your digital audio projects. Ensure correct clock ratios for MCUs, CODECs, DACs, and ADCs based on sampling rate, bit depth, and channel count.

Interactively calculate and visualize the frequency response (Bode plots) of common RC and RL passive electronic filters. Determine cutoff frequencies, and analyze magnitude and phase characteristics.

Interactively generate M.2 connector pinouts based on module key (A, B, E, M) or application (SSD, Wi-Fi, WWAN). Filter pins and view keying diagrams. Find the specific M.2 pin configuration you need.

Determine the best series resistor (Rs) for an NTC thermistor to maximize voltage swing or improve linearity over a specific temperature range. Calculates standard E12 resistor values.

Easily calculate resistor values from color codes. Supports 4-band, 5-band, and 6-band resistors, including tolerance and temperature coefficient (TCR).

Easily calculate the output voltage (Vout) of a resistive voltage divider. Enter input voltage (Vin), R1, and R2 values. Also calculates total current.