Embedded engineering calculators
Enter the values from a frame, board, panel, or encode plan. Get deterministic results with formula notes, test vectors, and links to the adjacent checks engineers usually need next.
CRC and bus calculations that firmware engineers search for when debugging real device traffic. Browse embedded protocol tools.
Calculate CRC-16/Modbus from ASCII or hex bytes and append the RTU low-byte/high-byte checksum to a request frame.
Find the safe I2C pull-up resistor window from NXP timing formulas and choose a standard E12 value.
Find STM32 timer prescaler and auto-reload values for a target frequency, including APB prescaler timer clock behavior.
Bandwidth and bitrate pages that bridge embedded display work, streaming math, and file-size planning. Browse video and display tools.
Estimate H.265/HEVC file size from bitrate and duration, or calculate the target video bitrate for a desired file size.
Calculate live stream, RTSP, IP camera, and NVR pull bandwidth from main stream bitrate, sub stream bitrate, stream count, concurrent pulls, duration, and network overhead.
Calculate display bandwidth for resolution, refresh rate, color depth, blanking, lanes, and link encoding overhead.
The MVP avoids broad calculator head terms first. Modbus CRC, H.265 bitrate, display bandwidth, and STM32 timer pages have clearer search intent and weaker SERP competition than generic bitrate, bandwidth, or resolution calculators.
Each tool page links to a how-to guide, related calculators, and a small set of authoritative references so the site can build topical depth without making every page feel like a blog post.