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--- circuit_design:uebung_2.1.5 [2021/11/13 13:06] – slinn
+++ circuit_design:uebung_2.1.5 [2023/03/27 14:13] (aktuell) – mexleadmin
@@ Zeile 1: / Zeile 1: @@
-<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. The supply voltage of the microcontroller and the board is 5V. LED1 should have a forward voltage $U_{f,1}=2.3V$ (red), LED2 should have a forward voltage $U_{f,2}=2.1V$ (green).
+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 $5~\rm V$.
+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:
-    - Supply: $5V$
+    - Supply: $5~\rm V$
-    - Digital output: $5V$, $0V$ 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>.
 </WRAP></WRAP></panel>