System Design
System design methodology and embedded design topics.
6 articles total
Design a Battery-Powered IoT Sensor Node
System design walkthrough: battery-powered environmental sensor with 5-year lifetime, LoRa/BLE communication, duty cycling, and OTA firmware updates.
Design a Data Logging System
System design walkthrough: embedded data logger recording 100 samples/sec for 7 days with Flash storage, circular buffering, and USB retrieval.
Design a Motor Control System
System design walkthrough: BLDC motor controller with closed-loop speed control, FOC algorithm, real-time ISR architecture, and safety interlocks.
Design a Multi-MCU System
System design walkthrough: main controller with 3 peripheral MCUs for distributed sensor acquisition, inter-MCU communication, synchronization, and fault tolerance.
Design an Automotive CAN Network
System design walkthrough: CAN bus architecture for a vehicle with 10 ECUs, message prioritization, gateway design, bus load analysis, and diagnostics.
Embedded System Design — Interview Methodology
How to approach embedded system design interviews: requirements analysis, HW/SW partitioning, architecture patterns, and common mistakes to avoid.