DJ Pete Beat Sequencer
Embedded firmware for STM32 microcontrollers featuring advanced I2C, DMA, DAC, SPI integration with Adafruit NeoTrellis RGB keypads for interactive music production.
Technical Architecture
STM32 Embedded System
Advanced embedded firmware leveraging STM32 ARM Cortex-M4 microcontroller with multiple communication protocols and real-time audio processing for interactive music production hardware.
Key Features
Multi-Protocol Communication
Implemented I2C and SPI communication protocols for seamless integration with Adafruit NeoTrellis RGB keypads and external peripherals.
DMA-Driven Audio Processing
Leveraged Direct Memory Access for real-time audio sample streaming to DAC, eliminating CPU bottlenecks in audio processing pipeline.
Real-time RGB Control
Dynamic LED matrix management with per-key RGB control, creating visual feedback system synchronized with audio patterns.
Low-Level Optimization
Hand-optimized ARM assembly routines for critical audio paths, achieving deterministic timing for professional music applications.
Project Impact & Achievements
Showcased embedded systems expertise through creative music technology, bridging hardware and artistic expression
Key Achievements
Implemented complex embedded systems with multiple communication protocols
Created interactive RGB keypad interface for music production
Presented at Purdue Spark Challenge showcasing technical innovation
Demonstrated expertise in low-level hardware programming and real-time systems
Technical Innovation
- • Advanced embedded systems architecture design
- • Real-time audio processing on resource-constrained hardware
- • Multi-protocol communication stack implementation
- • Professional-grade timing precision for music applications
- • Demonstrated mastery of low-level embedded programming
- • Applied real-time systems concepts in practical context