DIY Smart Trolley Robot with Arduino |

👉 Want to make your own Smart Trolley Robot? Check the step-by-step guide along with the circuit and code here:   electronicsforu.com/electronics-projects/s...  

👉 This project involves building a Smart Trolley Robot that can be wirelessly controlled using a mobile phone over Bluetooth. The system uses an Arduino microcontroller, a motor driver, and DC motors mounted on a chassis, allowing the user to move the trolley forward, backward, left, or right with simple smartphone commands. Powered by a rechargeable battery pack, the design is portable, efficient, and suitable for carrying loads. Its straightforward construction and use of widely available components make it an excellent project for students, hobbyists, and educators interested in robotics and wireless control applications.

👉The components required to develop this project are -
~ Arduino Uno (MOD1) - 1X
~ Bluetooth HC-05 (MOD2) - 1X
~ L298 motor driver (IC1) - 1X
~ 12V, 500 RPM geared DC motor (M1, M2) - 2X
~ Battery holder - 1X
~ USB cable - 1X
~ Breadboard - 1X
~ Battery 18650 3.7V 2000mAh - 4X
~ Wooden plank - 1X
~ 100cm diameter tyres and robot wheels with 6mm shaft - 2 set
~ Small castor wheel - 1X

👉The step-by-step process of building the project involves -

1. A Bluetooth module (HC-05/06) is paired with a smartphone to receive control commands.
2. The user sends directional inputs (forward, backward, left, right, stop) via Telegram bot.
3. The Bluetooth module transmits these commands to the Arduino microcontroller.
4. The Arduino processes the received commands and sends control signals to the motor driver (L293D).
5. The motor driver drives the DC motors accordingly to move the trolley in the desired direction.
6. A rechargeable battery pack powers the entire system, making the trolley portable and wireless.
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