Smart Door Lock Servo Kit — Build a Tendon-Driven Soft Robotic Finger with Arduino Camera Feedback

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Mimic biological motion with a silicone finger driven by three fishing-line tendons and camera-based position estimation. This smart door lock kit evolves from a simple lock mechanism into a study of soft robotics, servo coordination, and Arduino-based vision processing. You’ll cast a custom silicone actuator, rig it with three SG90 servos, and wire an OV2640 camera to track tip position – building a closed-loop system that moves the finger to unlock a conceptual door lock with unprecedented precision.

What You'll Build

You’ll mould a silicone finger using the included kit, string three tendon lines from servo horns to the fingertip, and mount the OV2640 camera to capture live tip coordinates. The Arduino Uno calculates position error and commands the PCA9685 I2C driver to pulse all three servos simultaneously, smoothly curling the finger to a target location. The finished assembly demonstrates a tendon-driven soft robotic actuator that can press, hook, or twist a latch – exactly the kind of biomimetic control a smart door lock demands.

What You'll Learn

• Design and mould a soft robotic actuator using a two-part silicone kit
• Coordinate three servos over I2C with the PCA9685 16-channel PWM driver
• Interface an OV2640 camera and write code for real-time tip position estimation
• Implement closed-loop control to curl the finger to precise positions

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced kit is built for B.Tech ECE and EEE students exploring soft robotics and computer vision, as well as participants in Smart India Hackathon or ATL innovation labs. If you’re a member of a college robotics club at IIT, NIT, VIT, or BITS, this kit provides a hands-on proof-of-concept for biomimetic actuation and Arduino-based control systems.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.