![When switching an LED with a transistor via a microcontroller, do I have to worry if the load supply voltage is higher than my microcontroller logic? - Electrical Engineering Stack Exchange When switching an LED with a transistor via a microcontroller, do I have to worry if the load supply voltage is higher than my microcontroller logic? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/mYnGp.png)
When switching an LED with a transistor via a microcontroller, do I have to worry if the load supply voltage is higher than my microcontroller logic? - Electrical Engineering Stack Exchange
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One Transistor LED Flasher | Electronic circuit design, Electronic circuit projects, Circuit projects
![What happened to the voltage measurement across the collector and emitter pins of the transistor when the LED transitioned from ON to OFF? What does this tell us about the state of What happened to the voltage measurement across the collector and emitter pins of the transistor when the LED transitioned from ON to OFF? What does this tell us about the state of](https://homework.study.com/cimages/multimages/16/62328178048550982593690978.png)