Uploaded April 2020 | Updated September 2026, 3 weeks ago
This is a Fire Alarm/Sensor! - the core of this simple circuit is the LM358 IC. The heat is detected by a thermistor, a resistor that varies its value as the ambient temperature changes. With the 10KΞ© trimmer it is possible to adjust the temperature, at which the alarm will be actived. Finally, the buzzer I used is an active type, a normal buzzer would not sound.
β Components:
- 1x LM358 [ bit.ly/2VCFPLy ]
- 1x 10 KΞ© Thermistor [ bit.ly/2yrIhMG ]
- 1x 10 KΞ© Resistor [ bit.ly/2ytgn3e ]
- 2x 330Ξ© Resistors [ bit.ly/2ytgn3e ]
- 1x 10 KΞ© Trimmer [ bit.ly/3cyvozr ]
- 1x Active Buzer [ bit.ly/2VisN6H ]
- 2x LED 5mm [ bit.ly/2UzRDgR ]
PCB coming soon ;)
β β¬β¬β¬β¬β¬ LINK & Support β¬β¬β¬β¬β¬β
Watch another video =)
β Music Keyboard: youtu.be/ajtR6eDOaQI
β Water Level indicator: youtu.be/n9GB0nfwG8s
β Police Light: youtu.be/kG2LQmEtqZo
β Electric Field Detector: youtu.be/4nS8xujHZT8
β Vu-Meter Stereo: youtu.be/l8oUQpGAOCw
β Traffic Light: youtu.be/6iRjZMHVvhs
β Vu-Meter 40 LED: youtu.be/oWB2faToGAA
β Automatic LED Light: youtu.be/fwPQcBr8nwc
β Voltage Detector: youtu.be/yRWRsSASQTc
β Music LED with TIP31: youtu.be/3qZ3uA8hDmE
β NE555 Signal Generator: youtu.be/iYP3Db3jyOQ
Follow me β₯
- YouTube: youtube.com/c/Stefano91ste
- Instagram: instagram.com/Stefano91ste
- Pinterest: https://www.pinterest.it/Stefano91ste
β My STORE: youtube.com/c/Stefano91ste/store
β If you'd like to support the channel: Like, Subscribe, Comment and Share :)
β Do you want to Make a PCB?
Look this: youtu.be/l8oUQpGAOCw
Music: "Light" by Vexento
WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals. Don't play with fire!
#Fire #Alarm #Sensor
This is a Fire Alarm/Sensor! - the core of this simple circuit is the LM358 IC. The heat is detected by a thermistor, a resistor that varies its value as the ambient temperature changes. With the 10KΞ© trimmer it is possible to adjust the temperature, at which the alarm will be actived. Finally, the buzzer I used is an active type, a normal buzzer would not sound.
β Components:
- 1x LM358 [ bit.ly/2VCFPLy ]
- 1x 10 KΞ© Thermistor [ bit.ly/2yrIhMG ]
- 1x 10 KΞ© Resistor [ bit.ly/2ytgn3e ]
- 2x 330Ξ© Resistors [ bit.ly/2ytgn3e ]
- 1x 10 KΞ© Trimmer [ bit.ly/3cyvozr ]
- 1x Active Buzer [ bit.ly/2VisN6H ]
- 2x LED 5mm [ bit.ly/2UzRDgR ]
PCB coming soon ;)
β β¬β¬β¬β¬β¬ LINK & Support β¬β¬β¬β¬β¬β
Watch another video =)
β Music Keyboard: youtu.be/ajtR6eDOaQI
β Water Level indicator: youtu.be/n9GB0nfwG8s
β Police Light: youtu.be/kG2LQmEtqZo
β Electric Field Detector: youtu.be/4nS8xujHZT8
β Vu-Meter Stereo: youtu.be/l8oUQpGAOCw
β Traffic Light: youtu.be/6iRjZMHVvhs
β Vu-Meter 40 LED: youtu.be/oWB2faToGAA
β Automatic LED Light: youtu.be/fwPQcBr8nwc
β Voltage Detector: youtu.be/yRWRsSASQTc
β Music LED with TIP31: youtu.be/3qZ3uA8hDmE
β NE555 Signal Generator: youtu.be/iYP3Db3jyOQ
Follow me β₯
- YouTube: youtube.com/c/Stefano91ste
- Instagram: instagram.com/Stefano91ste
- Pinterest: https://www.pinterest.it/Stefano91ste
β My STORE: youtube.com/c/Stefano91ste/store
β If you'd like to support the channel: Like, Subscribe, Comment and Share :)
β Do you want to Make a PCB?
Look this: youtu.be/l8oUQpGAOCw
Music: "Light" by Vexento
WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals. Don't play with fire!
#Fire #Alarm #Sensor
