89Panadol
Newbie level 4
Hai everyone...I have problem with my Ultrasonic Radar project..
•The problem is: 1)Motion detector cannot triggered relay.
2)When output from ultrasonic radar not connected to relay,the output voltage is almost 9v when it detect motion.
3)When output from ultrasonic radar connected to relay,the output voltage is just 2 v when it detect motion(not enough to triggered relay)
•This circuit use a pair of transistor BC547 as output to triggered relay.
•How i can increased the voltage when ultrasonic radar connected to relay..
•Link to project
http://www.high-voltage-lab.com/247/ultrasonic-radar
•The problem is: 1)Motion detector cannot triggered relay.
2)When output from ultrasonic radar not connected to relay,the output voltage is almost 9v when it detect motion.
3)When output from ultrasonic radar connected to relay,the output voltage is just 2 v when it detect motion(not enough to triggered relay)
•This circuit use a pair of transistor BC547 as output to triggered relay.
•How i can increased the voltage when ultrasonic radar connected to relay..
•Link to project
http://www.high-voltage-lab.com/247/ultrasonic-radar