piezo transducer

Miniature piezo transducer

Buy these if you can afford them, or wait until they are needed for a project.

• A light dependent resistor (LDR), ORP12 or NORPS12.
• A thermistor, miniature disc type, NTC about 5k@25°C.
• A piezo transducer with flying leads.
• A buzzer or bleeper.
• A miniature loudspeaker 8.