My M.Tech thesis centres on building a weight-based grading machine for Indian kiwis. The prototype already has an Arduino Uno, a stepper motor that turns a rotating chute, and a load cell mounted beneath the fruit platform. The frame will be fabricated from steel sheet on an iron base with a detachable plastic collection box. I now need end-to-end support in three intertwined areas: • Programming – a single, well-structured Arduino sketch that reads the load-cell data, classifies the fruit by weight, and drives the stepper motor to the correct outlet in one continuous loop. Clean state management, non-blocking timing, and easy parameter tweaking are essential so I can fine-tune grades during trials. • Electronics – a clear wiring diagram showing the Uno, stepper driver, load-cell amplifier and basic protections, plus guidance on calibration of the load cell and motor current settings. • Mechanical finishing – practical advice (drawings or annotated photos are fine) on cutting and bending the steel sheet for the chute, sizing the plastic box, and bracing the iron frame so vibrations do not skew the weight readings. Deliverables that will let me close my project record: 1. Complete Arduino source code with in-line comments. 2. Schematic or Fritzing diagram for all electronic connections. 3. CAD drawings or dimensioned sketches for the sheet-metal parts, plastic box and frame, including material thickness and suggested fasteners. 4. Short hand-off note explaining calibration steps and how to expand the grading thresholds for future fruit sizes. The design should reliably detect weight differences as small as 2 g and move the chute to its next position within one second. When these criteria are met on my test bench the job is done, and I will include your contribution in my final report and demonstration video.