3.6. Hardware Optimization
3.6. 1. Introduction to Hardware Optimization
Hardware optimization is the process of selecting, designing, and configuring hardware components to achieve the required functionality with appropriate performance, power consumption, size, reliability, and cost.
3.6. 2. Hardware optimization techniques
1. Select an appropriate microcontroller
The microcontroller should have enough:
- CPU performance
- RAM
- Flash memory
- GPIO pins
- Communication interfaces
- ADC channels
- Timers
Using a much more powerful microcontroller than necessary may increase cost and power consumption.
2. Reduce unnecessary components
If a function can be performed by an internal microcontroller peripheral, an external component may not be necessary.
3. Optimize power supply
An efficient voltage regulator can reduce energy losses.
4. Optimize PCB design
Good PCB design can:
- Reduce board size.
- Reduce electromagnetic interference.
- Improve signal integrity.
- Reduce material usage.
- Improve reliability.
5. Select appropriate sensors
A sensor should meet the required:
- Accuracy
- Range
- Response time
- Power consumption
- Communication requirements
- Cost
Example:
If a system only needs to measure temperature, selecting a simple low-power temperature sensor may be better than using a much more expensive sensor with features that are not required.
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