Logic Voltage Level Converter (3.3V-5V)

 

Use this module to connect two devices at different digital voltage levels. For example: You can use it to connect Arduino (5V device) to ESP8266 (3.3V device).

This module can be powered from both high and low voltage level It requires you to feed it. Connect the high voltage source to the "HV" pin and its ground to the "GND" pin next to the "HV" pin. Also, connect the low voltage source to the "LV" pin and its ground to the "GND" pin next to the "LV" pin. For example, if you are connecting your Arduino (5V signals) to an ESP8266 (3.3V signals), pin the "HV" pin on the module to the 5V supply pin on your Arduino and the "GND" pin to the "HV" pin on your Arduino. Then connect the "LV" pin on the module to the 3.3V power supply powering the ESP8266, and the "GND" pin next to the "LV" pin to the ground of the 3.3V power supply. You connect the signal pin from your Arduino to one of the signal pins on this module (e.g. "HV1 pin"), and then connect the desired signal pin on the ESP8266 to the corresponding pin on this module ("LV1" if the higher voltage signal is connected to "HV1").