Technical Notes and Articles

Online tool to assist you in determining the optimal value of the series dropping resistor to limit the current through your LED circuit. Just input the indicated values and press the “Calculate” button.

Hikvision NVRs lack remote viewing capabilities with Google Chrome. This walkthru provides details on how to restore viewing capabilities.

We have detailed step-by-step instructions on setting up and configuring Arduino IDE to use and program the NodeMCU ESP8266. Complete with example code and links to example sketches.

Highly efficient DC step down power converter board features a 5V-15V input voltage and delivers up the 3A output at 1.25V, 1.5V, 1.8V, 2.5V, 3.3V or 5V output in a tiny easy to use package.

A resistor is one of the most common building block used in electronics circuits. Resistors are available in several shapes and sizes. This tool decodes information for all color banded resistors.

Candle Flicker LEDs are a new generation of LEDs which incorporate a tiny microprocessor which, when power is applied, will closely mimic a real candle flame.

Driver for 1 watt or 3 watt High Power LEDs. LED drivers can be a confusing part of LED technology. Our exclusive Driver Board holds three LED Drivers and deliver PWM power to up to 12 high power LEDs

Color Cycling LEDs are a very different type of LED. Each features three separate LEDs connected to a dedicated microcontroller inside of the LED. When powered, the LED will automatically perform a slow fade cycle.

Compact digital panel meter measures currents from 0-49.9A and voltages from 0-99.9V DC through dual 0.28″ LED displays. Complete with an external 50A shunt.

Crimping and RJ45 Connector Correctly. How to properly wire and crimp an RJ45 connector for Cat5/5e Ethernet cable.