A peak flow meter is an inexpensive, portable, handheld device for those with asthma that is used to measure how well air moves out of your lungs. Measuring your peak flow using this meter is an ...
The project was based on a PIC16F877A microcontroller for the basic purpose of encouraging radio amateurs to build their own SWR meter at a very cheap price compared to high-priced ready made. Two ...
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