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This robotic arm is made without Arduino. It works on a 2.4gh transmitter which is commonly used in drones. I am using a FlySky FS-ia6 worth 5500 inr. I also used a 3mm acrylic sheet to make its arms. Servo motors used are Tower Pro Mini Servos. It works on a 5V 2A power supply which can be provided using a mobile charger. This project is good for school and college projects, science exhibitions and for hobby, too.
1. 4x Servo Motors
2. Acrylic Sheet
3. Drone Transmitter
1. Screw Driver
2. Acrylic Cutter
3. Double Sided Tape
A servo motor is a closed-loop system that uses position feedback to control its motion and final position. In industrial type servo motors the position feedback sensor is usually a high precision encoder, while in the smaller RC or hobby servos the position sensor is usually a simple potentiometer.
A radio control system is made up of two elements, the transmitter you hold in your hands and the receiver you put inside your drone. Dramatically simplifying things here, your drone transmitter will read your stick inputs and send them through the air to your receiver in near real time. Once the receiver has this information it passes it on to your drones flight controller which makes the drone move accordingly. A radio will have four separate channels for each direction on the sticks along with some extra ones for any auxiliary switches it may have.
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Instructables - https://www.instructables.com/member/PrashantS161/