💡Project Idea:
This project combines two control technologies — DTMF and RF — to build a long-range, dual-mode robotic vehicle. It can be controlled via:
RF remote within a 9-meter range (short range).
DTMF-based control using a mobile phone beyond 9 meters (long range via cellular network).
Additionally, it features built-in obstacle avoidance to ensure autonomous navigation when not manually controlled. This 8051 microcontroller-based robot is perfect for learning wireless communication, control systems, and embedded programming.
🧩 Components:
8051 Microcontroller (AT89S52)
RF Transmitter & Receiver Modules (433 MHz)
DTMF Decoder Module (MT8870)
Robotic Chassis with Wheels
DC Motors (BO Motor or Gear Motor)
Motor Driver IC (L293D)
Crystal Oscillator (11.0592 MHz)
Diodes, Resistors, Capacitors, Transistors
Cables and Connectors
LED Indicators
Switches and Push Buttons
PCB or Breadboard (as per kit)
IC Sockets
Power supply (9V-12V)
Software:
Keil µVision IDE (for 8051 programming)
Embedded C Language
✨ Project Features:
Dual control modes: RF remote and DTMF (mobile)
Automatic obstacle detection and avoidance
8051 microcontroller-based smart robot
Long-range control via cellular signal (DTMF)
Smooth switching between RF and DTMF control
Perfect integration of wireless technologies
Sturdy robot chassis with reliable motor control
🚀 Applications:
Educational learning kit for embedded systems
Robotics and wireless communication projects
College mini or major project model
Tech exhibitions and competitions
Defense or security prototypes (demo level)
📦 Project Includes:
Fully assembled and tested circuit
Circuit diagram
Source code
(For DIY KITs - only the components will be provided)
Project Types:
- DIY KIT(Do IT YourSelf KIT) - We are providing only components in this kit for this project
- DIY KIT with Code & Circuit Connections - Along with the components, you will get the Code and the Circuit Connections file to help you build the project easily.
- Readymade Breadboard - We are providing fully assembled, tested and ready-made project using plug-n-play jumper wires and breadboard with all the other components, code & circuit diagram.
- Readymade Soldered - We are providing fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
📐 Dimensions (Approx):
Robot Base: 18 cm(L) x 15 cm(W)
Height (with circuitry): 12 cm(H)
Shipping dimensions: (Approx)
Length = 25cm
Width = 20cm
Height = 20cm
⚖️ Weight (Approx):
Around 850–1000 grams
Estimate Project Weight: 3 KG
All the products are made by LearnElectronics India and not for re-sale.
