Wireless Control Mastery: DTMF & PIC Microcontroller

Want to control devices from your phone without Wi-Fi, apps, or complex setup?

This course unlocks a classic yet powerful wireless control method using DTMF (Dual Tone Multi-Frequency) signals—like the tones from your phone keypad. You’ll learn how to decode these signals and trigger devices through a PIC microcontroller, creating reliable, offline control systems perfect for security, automation, and rural projects.

If you want to build phone-controlled devices with minimal hardware and high reliability, this course is your key.

Why DTMF + PIC?

• No Internet required—just a phone signal or call

• Works remotely and reliably, even in low-signal areas

• Easy to integrate with relays, motors, alarms, and automation systems

• Ideal for use in remote gates, irrigation systems, and security devices

This course shows you how to:

• Connect a DTMF decoder to a PIC microcontroller

• Detect and decode keypress tones from any phone

• Use embedded C to process and act on DTMF input

• Build a working wireless device controller using phone input

What You’ll Learn

• How DTMF works and how it’s used for control systems

• Connecting and configuring a DTMF decoder (MT8870)

• Writing embedded C to process tone inputs on a PIC microcontroller

• Mapping tone inputs to specific actions (e.g., turning on LEDs, motors, alarms)

• Building a complete phone-controlled relay or device switcher

• Debugging DTMF communication and signal handling

• Expanding the design for more channels or feedback

Projects You’ll Build

• A phone-controlled electrical relay system

• A secure remote switch that responds only to specific DTMF codes

• A multi-output control board triggered via keypress sequences

• A simple remote automation prototype for irrigation or gate systems

Join now and master DTMF-based wireless control using the reliability of PIC microcontrollers.

Who This Course Is For

• Intermediate learners with basic microcontroller and C experience

• Students building wireless control or automation projects

• DIY electronics makers seeking no-internet control options

• Engineers working on remote-area or low-cost systems

• Anyone curious about old-school yet effective control tech

Requirements

• Basic knowledge of PIC microcontrollers and embedded C

• PIC development board (e.g., PIC16F877A)

• MT8870 DTMF decoder module

• Phone (landline or mobile with keypad tones), SIM module (optional)

• Relays, LEDs, resistors, jumper wires, breadboard

Instructor Bio

The Educational Engineering Team, with over 250,000 students trained, specializes in embedded control systems that solve real-world problems. Their expertise in microcontroller-based communication and automation makes this DTMF course a standout for anyone looking to master wireless control—without relying on Wi-Fi or apps.

FAQ

Q: What phone do I need?
A: Any phone with a keypad that produces tone-based sound (DTMF) works—landline or mobile.

Q: Is this like Bluetooth or Wi-Fi control?
A: No—it’s audio-based wireless control using sound signals from phone calls, with no internet needed.

Q: Do I need a SIM module or GSM setup?
A: Optional—you can test with a direct audio line or expand with GSM for full remote control.

Q: Will I get a certificate?
A: Yes—a Certificate of Completion is awarded at the end of the course.

Q: Can this be used in rural or offline areas?
A: Absolutely! That’s one of the biggest strengths of DTMF control systems.

Join Now – Build Reliable Wireless Control with DTMF & PIC