Audio Frequency Based Stepper Motor Driver on ARM

• 1 Khz Microphone Capture and Digital Signal Processing
• Control LED Color According to Sound Frequency
• Frequency Thresholds can be set by Serial UI and KeyPad
• Stepper Motor Speed according to Magnitude of the Sound
• Stepper Motor Direction is according to on-board switch

Project Features

• Controller : EK-TM4C123GXL (TM4C123GH6PM)
• Language : Assembly ARM Thumb2
• IDE : Keil uVision Project
• LCD Screen Handling (Nokia 5110)
• UART 38400 8N1 (Serial UI)
• SPI
• KeyPad Handling with Debouncing
• Switch Handling with Debouncing
• Stepper Motor Handling
• ADC 2 KHz Microphone
• ADC Potentiometer
• CMSIS DSP Implementation
• Customizable Font Types for LCD Screen

Modules

ADC0

• SS0: Potentiometer, One-Shot, Interrupt Enabled, Pin AIN1 (E2), Priority 2
• SS3: Microphone , One-Shot, Interrupt Enabled, Pin AIN0 (E3), Priority 1

Timer0

• Timer0A: Motor Driving, 4 MHz Clock, One-shot, Counting Down, Timeout Interrupt Enabled, Priority 2, Slow Reload Value.

SysTick

• Generating 2 kHz Sampling Rate for ADC0SS3 and Enabling 1-Sec Update Routine. Enable Interrupt, Priority 1.

SSI3 SPI

• 4 MHz CLK, 8-bit Frame, FreeScale Mode.

System Overview

Summarized FlowCharts

Project Requirement

See Project Definition PDF

Project Report

See Project Report PDF