robotics

Geekcreit® 12V 4CH Channel 433Mhz Wireless Remote Control Switch Transceiver Receiver Module

Features: It is a simple user programmable wireless remote control switch. The receiver has an output way /working way which can be changed as desired to match the transmitter. It has 4 Relays which can make 2 DC motors turn or reverse, on/off. 1. It covers applications ranging from a simple domestic remote control to …

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Optical Liquid Level Sensor

One of the very low cost ($4) liquid level sensor with excellent performance. Unlike many liquid level sensors other than ultrasonic require probes to be inserted to the liquid. This causes electrolysis and after few days it stops working properly. Non touch-types Ultrasonic has the disadvantage of getting damaged if accidentally comes in touch with …

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