As said , this is a water level sensor which contains the connection to a relay which operates a solenoid valve connected to the relay.
The list of components are:
The list of components are:
- Green connectors -2pcs
- Molex 2 pin connector -1pc
- 1N4007-1pc
- 2N3904- 2pc
- Resistors: 10k,1k
- Led - 5mm - 1pc
- 10k Pot
- Solenoid valve to suit the need -1 pc
- Relay: with actuation voltage same as that of the solenoid
- Power supply to the rated voltage of relay and solenoid, 1A
The schematic and layout of it are attached as follows:
In order to make it work, the power supply is to be given to the PCB. From the 2 pin molex connector 2 wires to be drawn and left to the maximum necessary water level. The pot is to be adjusted such that the LEd glows with full power.
The PCB works as follows, water is a conductor of current to some extent depending on the impurity in it. The transistor in the PCB is given the base current from the power of the supply and passes through the water layer and then to the ground from the pot. The pot is used to adjust the triggering level of the relay. If necessary a solenoid can be used or else some kind of necessary actuator which is necessary by the user. The jp3 is the output terminals of the PCB.
The PCB layout in pdf format is given below:
Thank you all for waiting and sorry for the delay. Will keep updating soon from now.
