Nov 30, 2012 #1 M manomarch Newbie level 3 Joined Nov 30, 2012 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,300 hey! how to interface a +5V buzzer with IC 89S52. someone suggested me to use two bc547 npn transistor. this is its schematic. i want to know basically what is this circuit doing?
hey! how to interface a +5V buzzer with IC 89S52. someone suggested me to use two bc547 npn transistor. this is its schematic. i want to know basically what is this circuit doing?
Nov 30, 2012 #2 tpetar Advanced Member level 7 Joined Sep 27, 2010 Messages 6,417 Helped 1,713 Reputation 3,456 Reaction score 1,673 Trophy points 1,393 Location Pancevo-Belgrade, Serbia Activity points 37,363 Interfacing Of a Buzzer Using Microcontroller 89C52/89S52 https://allaboutlearningandearning.blogspot.com/2011/07/interfacing-of-buzzer-using.html
Interfacing Of a Buzzer Using Microcontroller 89C52/89S52 https://allaboutlearningandearning.blogspot.com/2011/07/interfacing-of-buzzer-using.html
Nov 30, 2012 #3 M manomarch Newbie level 3 Joined Nov 30, 2012 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,300 ohk ! that means it can also be controlled with one transistor. but what if we use two transistor as shown in the circuit.
ohk ! that means it can also be controlled with one transistor. but what if we use two transistor as shown in the circuit.
Nov 30, 2012 #4 tpetar Advanced Member level 7 Joined Sep 27, 2010 Messages 6,417 Helped 1,713 Reputation 3,456 Reaction score 1,673 Trophy points 1,393 Location Pancevo-Belgrade, Serbia Activity points 37,363 Its buzzer you dont need two transistors. You can use second transistor if you have different voltages for buzzer and uC or something similar. - - - Updated - - - This thread is created in wrong group.
Its buzzer you dont need two transistors. You can use second transistor if you have different voltages for buzzer and uC or something similar. - - - Updated - - - This thread is created in wrong group.
Nov 30, 2012 #5 M manomarch Newbie level 3 Joined Nov 30, 2012 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,300 ok may be the circuit i was provided with was wrong or was for other purpose. anyway i got your point. thank you
ok may be the circuit i was provided with was wrong or was for other purpose. anyway i got your point. thank you
Nov 30, 2012 #6 tpetar Advanced Member level 7 Joined Sep 27, 2010 Messages 6,417 Helped 1,713 Reputation 3,456 Reaction score 1,673 Trophy points 1,393 Location Pancevo-Belgrade, Serbia Activity points 37,363 Buzzers are often small current devices, used for some beep signaling, or in some variants can produce songs. Do you remmember old dialup modems from the time of Indiana Jones :smile:, when dialing buzzers give sounds for dial tone, handshaking,.... - - - Updated - - - See this link: PIEZO BUZZER: MELODY – BIRTHDAY SONG https://tutorial.cytron.com.my/2011/08/10/project-8-–-piezo-buzzer-melody-–-birthday-song/
Buzzers are often small current devices, used for some beep signaling, or in some variants can produce songs. Do you remmember old dialup modems from the time of Indiana Jones :smile:, when dialing buzzers give sounds for dial tone, handshaking,.... - - - Updated - - - See this link: PIEZO BUZZER: MELODY – BIRTHDAY SONG https://tutorial.cytron.com.my/2011/08/10/project-8-–-piezo-buzzer-melody-–-birthday-song/
Nov 30, 2012 #7 Tahmid Advanced Member level 6 Joined Jun 17, 2008 Messages 4,756 Helped 1,798 Reputation 3,588 Reaction score 1,656 Trophy points 1,413 Location Berkeley, California Activity points 30,584 Just go through this thread and you'll get all the required information: https://www.edaboard.com/threads/272422/ Diagram from that thread:
Just go through this thread and you'll get all the required information: https://www.edaboard.com/threads/272422/ Diagram from that thread:
Dec 1, 2012 #8 L learner71 Member level 2 Joined Jan 5, 2010 Messages 42 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 1,532 There are two types of buzzer. 1) Give Supply and get sound 2) Give Pulses and get sound.