Hello,I've been assigned to build a Water Detector based around NE 555.
The problem is I didn't get the schematics only parts required for building the sensor.So I guess I'll have to figure out how it works.
On the page I got it says on the left side there is a transistor and 100K resistor,2x 1.5K and single 4.7K resistor,they together with NE 555 will form a Schmitt Trigger.The other side of IC represents the buzzer with: 10K,100k
resistors and 10nF ceramic condenser. Elements that make the siren noise are Blink diode,390 Ohm resistor and 47uF condenser.
I tried looking up on the internet for NE 555 IC buzzer,Schmitt trigger and similar but it kind of confused me even more.
Cheers!
Parts:
The problem is I didn't get the schematics only parts required for building the sensor.So I guess I'll have to figure out how it works.
On the page I got it says on the left side there is a transistor and 100K resistor,2x 1.5K and single 4.7K resistor,they together with NE 555 will form a Schmitt Trigger.The other side of IC represents the buzzer with: 10K,100k
resistors and 10nF ceramic condenser. Elements that make the siren noise are Blink diode,390 Ohm resistor and 47uF condenser.
I tried looking up on the internet for NE 555 IC buzzer,Schmitt trigger and similar but it kind of confused me even more.
Cheers!
Parts:
- Stripboard
- Transistor(BC556,BC557,BC558) PNP-1
- NE555-1
- Blink Diode-1
- Speaker-1
- Elec. Condenser 10uF 16V-1
- Elec. Condenser 47uF 16V-1
- Ceramic Condenser 10nF-1
- Resistor 300 Ω-1
- Resistor 390 Ω-1
- Resistor 1.5 KΩ-2
- Resistor 4.7 KΩ-1
- Resistor 10 KΩ-1
- Resistor 100 KΩ-2
- 9V Battery
- Sensor