portfolio-v1
Remote Control Car Project 🚗🔧
📌 Overview
Me and my friend like thingies that move, so it becomes natural for us to build a RC car. This project fulfilled our interest and also improved our problem solving and creative thinking, especially in the engineering field. it also enchanced our hands-on experience with tools.
The RC car is controlled via an 27 MHz 4CH RC module(transmitter and receiver), with a wood chassis, plastic cover and used double batteries to power 2 dc motors.
Through this project, we explored circuit wiring, steering design, sketching, experimenting design and troubleshooting hardware problems.
Outcome: A fully functional RC car capable of forward/reverse driving, turning.
🛠️ Materials & Components
Electronics
- 27Mhz 4CH RC transmitter
- 27Mhz 4CH RC receiver
- 3-6V DC motors
- Wires
- AA Batteries
Mechanical
- Wood Chasis
- Cardboard
- Plastic Cover
- 4 × Wheels with rubber tires
- Axles
- Heat shrink tubing
- Screws, nuts, and nails
Tools
- Soldering iron
- Hot glue gun
- Pliers
- Multipurpose wire stripper.
- Scissor
- Pencil
- Sketching book
rough sketches of steering system designs.
version 1 of steering system, failed due to invalid dimension and insufficient space to implement.
version 2 of steering system, improved with more space and easy to implement, howver failed due to motor unable to produce enough torque when being placed too far in the back.
version 3 of steering system, improved from v2, added supports, made everything more compact and effcicient, put motor closer to ensure enough torque.
🧩 Challenges & Problems Faced
During the build process, we encountered some challenges.
Each problem required troubleshooting and iteration, which provided valuable hands-on learning.
⚡ Steering Issues
- Problem: The steering motor unable to produce enough torque to overcome friction.
- Cause: 2 AA battery does not produce enough voltage.
- Solution: Soldered two battery holders in series, so that the car has 4 AA batteries (6V), which maxes out the motors potential, which turned out to be successful.
🖥️ Unable to turn on
- Problem: The receiver fails to turn on.
- Cause: After checking all related conections, we found out that the V+ wire had poor connection.
- Solution: We resoldered the V+ wire and made sure all wires had proper protection and are well secured.