Blog

Evaluate BQ24074 one-cell charging with separate system and battery paths, source-current limits, thermal constraints and intact temperature protection.

Use VL53L4CD ranging with status-aware reads, realistic target conditions and cover-window calibration instead of trusting every distance number.

Plan DRV8871 brushed-DC control around stall current, ILIM configuration, coast and brake states, supply transients and realistic thermal limits.

Use PCA9536 fixed-address GPIO with safe latch initialization, explicit polling and pin read-back for a small low-voltage button-and-indicator panel.

Plan AD5933 impedance measurements with known calibration parts, correct DFT interpretation and frequency-aware gain and phase corrections.

Choose MCP3421 resolution, gain and one-shot timing while decoding variable-length signed results and respecting differential input limits.

Select MAX31856 thermocouple type, noise filtering and fault policy while checking cold-junction layout and complete signed temperature readout.

Configure HDC1080 paired temperature and humidity measurements with proper startup timing, result decoding and heater-aware environmental logging.

Use TMAG5273 magnetic axes and angle calculations with documented magnet geometry, range checks and calibration rather than assuming any magnet works.

Build an LSM6DSOX motion log with matched ranges, tagged FIFO parsing and timestamp handling before enabling embedded motion classification.