I am trying to replicate a circuit-diagram for my Raspberry Pi and DHT temperature & humidity sensor. I noticed that the author of the tutorial added a resistor between two connections (see orange and purple on the left side). Unfortunately I have no idea what this would look like on a breadboard. Would anyone be able to point me in the right direction/ resources? Any advice would be highly appreciated!

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As suggested in the link from the comments (Breadboard), place the resistor between the voltage line and the data connection line. This is a pull up resistor.

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The above image shows a connection between the voltage line and ground. In your case the resistor should be between the voltage and data line.

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