Mô Đun Cảm Biến Chạm Ttp 223 1 Bit

The module is a touch-based ic (Ttp223b) Capacitive dot touch switch module. Normal, output low level of module output, mode is low power consumption pattern When touching the corresponding position with your fingers, the module output high level, schema switch to fast mode When it lasts 12 seconds without touch, the pattern is switched to low power consumption mode. Modules can be installed in nonmetal materials such as plastics、 surface of glass, and thin paper (Non-metals) Cover the surface of the module, as long as the touch is right, can be hidden in walls、 keys in the desktop, etc. This module allows you to avoid the troubles of regular press buttons. The module features as follows:: Dot: Initial state is low level, touch is high level, do not touch low level (Similar to light touch key function) Low power consumption Power supply can be 2~5.5v dc Both positive and negative sides can be used as touch surfaces, alternative to traditional light touch buttons 4 m2, easy to install Action notes: First touch sensor with light contact, hold the touch sensor for a little longer, the lamps shine and bright. Maximization unit of minimum value typical value of project Vcc 2.0 3 5.5v Voh-0.8vcc-v Output low level vol-- 0.3vcc v Output pin irrigation current (Vcc 3v, vol 0.6v) - 8-ma Output pin pull current (Vcc 3v, voh 2.4v) --4-ma Response time (Low power consumption patterns) --220 ms Response time (Fast model) --60 ms Dimensions 24x24 x 7.2mm Weight 2g Control interface: Total 3 pins (Gnd、 vcc、 sig), gnd land, vcc for power supply, sig Power indicator: Green led, 11. If you use the electricity correctly, it shines Touch area: Icons similar to fingerprints showing internal areas, touch your fingers gently. Positioning holes: 4 m2, aperture is 2.2mm, make the module easy to install and position, implementation of inter-module combination