1.3" OLED Blue Display Module with Regulator Box Header It can quickly measure the

It can quickly measure the USB port's output voltage as well as the device's operational current or load voltage

It can be used as a fuse

In comparison to low frequency switching regulators

It's a RGB LED Common Cathode 4 Pin

They are most suited for usage in high-frequency signal-processing equipment

1.3" OLED Blue Display Module with Regulator Box Header It can quickly measure theThis 1. 3" monochrome OLED is basically a 128x64 dot matrix display module with an I2C interface. It's ideal for Applications that require a very small display. When compared to LCD panels, OLED displays offer a variety of benefits, including high brightness, self emission, high contrast ratio, slim outline, broad viewing angle, wide temperature range, and low power usage. Specification Resolution 128 x 64 Visual Angle >160 Input Voltage 3. 3V ~ 6V