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The chart shows the calculated values for when the supply voltage is 3.3 V, 5 V, 9 V, and 12 V. These are the typical voltages used by hobbyists for their projects. Just use the standard resistor values chart to find the nearest highest value available.
23 Ιαν 2024 · Our LED resistor value calculator is your go-to resource for efficient and precise results, ensuring the optimal performance and longevity of your LED circuits while demystifying concepts like what is Ohm's law and how to calculate Ohm's law.
This calculator will help you determine the value of the resistor to add in series with the LEDs to limit the current. Just input the indicated values and press the "Calculate" button. As a bonus, it will also calculate the power consumed by each LED.
Vishay’s Color Code Calculator helps users determine the value and tolerance by identifying each color of a 3, 4 or 5 color banded resistor.
28 Ιαν 2014 · This calculator works out the resistor value to accompany an LED by entering the battery voltage along with the LED forward voltage and typical current. Parameters for Kitronik LEDs can be picked from a list and the calculator even recommend a preferred resistor value complete with colour bands.
DigiKey's LED series resistor calculator uses supply voltage, forward voltage, and forward current values to help you identify the correct series resistor.
25 Μαΐ 2021 · Features: 2.4 inch LCD TFT display. Bright, 4 white-LED backlight, on by default but you can connect the transistor to a digital pin for backlight control. Colorful, 18-bit 262, 000 different shades. 4-wire resistive touchscreen. 240 x 320 resolution. Spfd5408 controller with built in video RAM buffer. 8 bit digital interface, plus 4 control lines.
