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circuit_design:uebung_2.1.5 [2023/03/09 15:26] – mexleadmincircuit_design:uebung_2.1.5 [2023/03/27 14:13] (aktuell) – mexleadmin
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 <panel type="info" title="Exercise 2.1.5 Two LEDs on one digital output"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 92%> <panel type="info" title="Exercise 2.1.5 Two LEDs on one digital output"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 92%>
-For a circuit you need to control two LEDs, but unfortunately only one digital output is free.  +For a circuit, you need to control two LEDs, but unfortunately, only one digital output is free.  
-The supply voltage of the microcontroller and the board is $5~V$.  +The supply voltage of the microcontroller and the board is $5~\rm V$.  
-LED1 should have a forward voltage $U_{f,1}=2.3~V$ (red), LED2 should have a forward voltage $U_{f,2}=2.1~V$ (green).+LED1 should have a forward voltage $U_{\rm F,1}=2.3~\rm V$ (red), LED2 should have a forward voltage $U_{\rm F,2}=2.1~\rm V$ (green).
  
   - Design a circuit from the existing voltage levels so that both LEDs can be driven. \\ Existing voltage levels:   - Design a circuit from the existing voltage levels so that both LEDs can be driven. \\ Existing voltage levels:
-    - Supply: $5~V$ +    - Supply: $5~\rm V$ 
-    - Digital output: $5~V$, $0~V$ or high impedance+    - Digital output: $5~\rm V$, $0~\rm V$ or high impedance
          
   - Calculate the values for the other necessary components <WRAP onlyprint> \\ \ \ \ \ \ \ \ \ \ \ \ \ </WRAP>.   - Calculate the values for the other necessary components <WRAP onlyprint> \\ \ \ \ \ \ \ \ \ \ \ \ \ </WRAP>.
 </WRAP></WRAP></panel> </WRAP></WRAP></panel>