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Wire an SG90 servo motor to Arduino Uno with a suitable external supply, try a restrained example sketch, and check pin colours, load and motion limits.

Choose a DRV8825 carrier by motor current, sense resistor, supply, cooling and microstepping, with the correct current-limit formula and Epro pricing.

Bring up an APDS9960 Arduino gesture interface with compatible wiring, identity checks, directional FIFO reads, overflow recovery and bounded event handling.

Trigger ISD1820 playback from Arduino using the correct PLAYE or PLAYL behavior, defined startup states and an inactive REC input to protect the message.

Choose a TSL2561 light sensor by spectral response, two-channel lux conversion, gain, integration time, address options and enclosure effects.

Set up an A4988 stepper motor driver by checking coil pairs, VMOT and logic supplies, current-limit calibration, decoupling and microstep settings.

Build a CCS811 Arduino logger that checks firmware state, wake timing, measurement mode, data-ready status, error IDs and environmental compensation.

Test a 74LVC245 Arduino bus interface with the correct supply, disabled startup, verified DIR mapping and deliberate break-before-drive turnaround sequencing.

Choose an ADS1115 ADC by input voltage, gain, I2C address, conversion rate and channel needs, with an Epro price snapshot and safe wiring checks.

Bring up ADXL345 with Arduino using address and identity checks, explicit measurement mode and six stationary orientations before attempting tilt calculations.