hi. i would like to ask how do i connect two 7-segment LEDs to a tuner (usually used to adjust volume in radio that kind) in such a way that when i keep tuning towards the left side, the numbers in the 7-segment will decrease per tune. and when i keep tuning towards the right side, the numbers in the 7-segment will increase per tune. how do i make the tuner and 7-segment LEDs connect and communicate?
another thing i would like to ask is how do air pressure massager works? what kind of device would be suitable to make the device inflate and deflate with air? what kind of microprocessor is needed? and is programming required?
another thing i would like to ask is how do air pressure massager works? what kind of device would be suitable to make the device inflate and deflate with air? what kind of microprocessor is needed? and is programming required?