Concise Title: HiLetgo 10pcs TTP223B Capacitive Touch Switch Module for Touch Sensor Switch

The project scope includes the following: 1. Utilizing an optocoupler and a bidirectional thyristor, it is possible to complete touch-sensitive projects for fluorescent lamps and other smart home applications. 2. Combining an optocoupler, a delay circuit, and a bidirectional thyristor, it is feasible to create touch-sensitive lamps for stairs.

The key features of this module are: - Low power consumption - Power supply range of 2 to 5.5 VDC - Ability to replace traditional touch buttons - Four M2 screw positioning holes for easy installation

The module's specifications are as follows: - Power supply voltage (VCC): 2.0 to 5.5 V (typical 3V) - High-level output (VOH): 0.8 × VCC - Low-level output (VOL): 0.3 × VCC - Output pin sink current (at VCC = 3V, VOL = 0.6V): 8 mA - Output pin pull-up current (at VCC = 3V, VOH = 2.4V): 4 mA - Response time (low power mode): 220 ms - Response time (touch mode): 60 ms - Size: 24 x 24 x 7.2 mm - Weight: 2 g

The package includes 10 TTP223B switch module digital touch sensors, which are of the "momentary" variety. This means that the touch sensor turns on when touched and turns off when released, effectively replacing traditional touch buttons.

The touch surface can be positive or negative, and the module can be installed on various non-metallic materials, such as surface plastic or glass. Additionally, the module can be hidden behind thin, non-metallic materials, such as paper, and still function correctly as long as the touch area is properly located.

The module is based on a touch-sensing IC (TTP223B) and operates in a capacitive touch switch mode. In the normal state, the module output is low, and the power consumption is low. When a finger touches the corresponding position, the module output goes high. If no touch is detected for 12 seconds, the module switches to a low-power mode.

This touch sensor module offers a versatile and easy-to-use solution for a variety of smart home and touch-sensitive projects, with its low power consumption, wide power supply range, and ability to be discreetly integrated into various non-metallic materials.

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