In this forum, we will show how we have implement temperature sensor and buzzer.
temperature sensor
We have use RTD temperature sensor from TE connectivity. It is a PT1000 Thin Film element sensor. The resistance of the sensor is 1K ohm at 0'c. Bellow is the picture of how we have connected the sensor to the wire.
For checking weather the wire is properly connected to the RTD or not, check the resistance between both the wire. You will get resistance. If possible touch a heating soldering iron to the RTD. You will see increase in resistance.
Buzzer
We have used piezo buzzer for generating sound. Bellow is the image of the piezo buzzer. We need to provide square wave to it for generating sound in it. For checking its connectivity with wire and connector. We set multimeter in resistance mode and check the resistance between the two wire. No resistance means there is a connection breakage some where in the wire else it will show some resistance.