A light sensitive user recordable sound module. Sound playback is triggered when the light sensor senses the presence of light. Great for gift boxes, packaging, bags, toys, jewellery boxes, and more. Light Activated Sound Modules, also known as Light Sensor Sound Devices, are the perfect solution for corporate business mailings, mailing tubes, music boxes, drawers, gag gifts and more! Imagine The gift of "SURPRISE" when they hear your. The LDR light sensor is very affordable, but it requires a resistor for wiring, which can make the setup more complex. LDR sensor module is a low-cost digital sensor as well as analog sensor module, which is capable to measure and detect light intensity. This sensor module. A photoresistor (also known as a light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases in resistance as a result of increasing illuminance (light) on its sensitive surface, in other words, it exhibits photoconductivity. Unlike simple light-activated switches, these modules can interpret light intensity gradients and produce dynamic sound outputs—making them.
