Rakibul Hasan

Note:  3 step brightness: Controls led brightness in 3 steps ( low, medium, high). Continuous level (No memory): Single touch for on off. Long touch to decrease brightness and long touch again to increase brightness. Resets brightness in on/off. Continuous level (with memory): Same as above. But it saves the brightness info. After turning on , it applies last brightness. Toggle on/off:  Simple toggle on or off the led. Technical information:  Operating voltage: up to 5 volt. Polarity protection: It has a low voltage drop diode. So, your accidental wrong polarity won't fry the module. LED control:  This module has an on board transistor  (typically , smd version of S8050 ) which can handle about 500mA . So, you can just plug in an led ( that consumes less than 500nA ) . But, to control higher current consuming leds, you must use a bigger TRANSISTOR or MOSFET.

ZW111 pinout: Note: make sure your connector follows same color sequence as this. Datasheet:  Download ZW111 datasheet Library:  Download Adafruit fingerprint Library ZW111 to Classic ESP32 Connection: Note: you must you 3.3v only. 5v may kill the module. For this setup, we are powering both the touch sensor and the fingerprint sensor with 3.3V. Pin Wire Color Function ESP32 Pin 1 White V_SENSOR (Touch Power) 3.3V 2 Blue TOUCH_OUT (Wake-up) GPIO 4 3 Green VCC (Module Power) 3.3V 4 Yellow UART_TX (Data Out) GPIO 16 (RX2) 5 Black UART_RX (Data In) GPIO 17 (TX2) 6 Red GND GND ZW111 with Classic ESP32 Tes...