Capacitive Touch PWM Control Panel LED Dimmer Module

Features:

1. Light levels can be adjusted according to need, wide range of options, easy operation.
2. In the case of the medium can (such as glass, acrylic, plastic, ceramic, etc.) to achieve isolation protection case touch functionality and high security.
3.  Application voltage range, can arbitrarily choose between 2.4 ~ 5V.
4. The application circuit is simple, less peripheral devices, easy processing and low cost.
5.  Anti-power interference and interference characteristics of a good phone. EFT can reach ± 2KV above; close, multi-angle cell phone interference,Touch response sensitivity and reliability is not affected.
6.  Installation: No direct contact copper, may across more than 3mm acrylic glass or plastic dimming.
7. Function: singlet touch, use capacitive touch principle, namely the induction sensitive fingertips. The default is a switching function, dimming function with brightness memory slowly fades the LED touch stepless dimming function. When the lights brighten slowly, slowly dimmed lights, effectively avoiding eye irritation.
8. Dimming mode: PWM stepless dimming
9. Wiring: PCB board (VCC, GND) for power input, (LED +, LED-) to connect the LED sign level (fingerprint) to access the touch area, but also the wiring leads (note the wiring is not too long, outlet Available with a small piece of copper after doing the sensing area), copper area suggestions about 2x3cm. Board carrying a copper foil side of the copper foil attached to the module shell side.
10. Uses: LED modules can be controlled, with lights and other products. Suitable for indoor lamp, LED lighting dimmer, DIY lights dimming refit the best accessories.

Specifications:

1. PCB size: L23mm * W20mm
2. Pitch: 16mm
3. Voltage range: 2.4-5V
4. Maximum output current: 500mA

Applications:

1. Tap the touch (touch duration is less than 550ms), you can achieve control lights off. One-click touch, lights; again tap the touch, the lamp is off. Illumination lighting of the initial luminance is fixed at 90% full brightness.
2. Press the touch (touch duration greater than 550ms), you can achieve stepless dimming the lights. A long press touch, light levels gradually increase light levels when released after the release time parked in the corresponding brightness, long time if more than three seconds, the light levels to achieve maximum brightness does not change; again long press touch, light levels gradually decreased to stop when you release the light levels in the corresponding brightness release time, if a long time more than three seconds, the light levels to a minimum brightness after no change.

Debugging Tips:

    If false triggering when debugging or not triggered, may cause the following reasons:

1. Too rough touch line
2. Touch line is too long
3. copper is not big enough
4. close to the switching power supply terminal interference
5. Touch unreasonable parameters C1