This is how to use infrared distance sensor Sharp 2Y0A21 without using microcontroller !
Parts list:
Sharp 2Y0A21
LED bar
IC LM3915
Capacitor 220uF
Capacitor 100nF
Resistor 10K (4pcs)
Resistor 390
Battery holder
Circuit:
Video:
This is how to use infrared distance sensor Sharp 2Y0A21 without using microcontroller !
Parts list:
Sharp 2Y0A21
LED bar
IC LM3915
Capacitor 220uF
Capacitor 100nF
Resistor 10K (4pcs)
Resistor 390
Battery holder
Circuit: