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4-Channel Logic Level Shifter - Loose Headers (4 ch Logic loose)
If you have ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be! The logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.
Non-contact Digital Liquid Level Sensor for Arduino (Non-contact Liquid Level)
Non-contact liquid level sensor for Arduino, using a high-speed chip for toxic or high-pressure liquids. Compatible with Gravity interface, with adjustable sensitivity.
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