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Welcome to Flux
Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More
Explain project
Write a project description
Find schematic issues
Create a test plan
Simulate a circuit
Prepare for Manufacturing
Component Selection Workflow
New Subsystem Wizard
Write I2C initialization code
Generate firmware skeleton
ekalan
copilot
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Choose an LED: If you don't have an LED in your project already, you might consider adding one. Since you have a place for a power indication with the designator PWR, you can use it for this purpose.
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Current-Limiting Resistor Calculation:
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Assume a typical LED forward voltage of 2V and forward current of 20mA.
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The resistor value can be calculated using Ohm's Law:
R=ILEDVsource−VLED
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For a 12V source:
R=0.020A12V−2V=500Ω
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You can use a standard resistor value of 470Ω or 560Ω.
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Connections:
- Connect VCC12V to the anode (A) of the PWR LED.
- Connect the cathode (K) of the PWR LED to one end of a resistor. For this example, let's use a 560Ω resistor, assuming designator R10.
- Connect the other end of R10 to GND.
Summary: