update content

Author: Hannes7eicher

content/hardware/09.kits/maker/iot-bundle/tutorials/the-nerd/content.md

@@ -31,7 +31,7 @@ The Nerd will need food which you can give it by pressing its button. Otherwise,
 * Phototransistor
 * Buzzer
 * Push button
-* 220 Ohm resistor
+* 1M Ohm resistor
 * 10K Ohm resistor
 
 ### Learning Goals
@@ -52,11 +52,11 @@ This tutorial is part of a series of experiments that familiarise you with the A
 
 ### Circuit
 
-In this project, we will be using the following circuit. In it, we have a 220 ohm resistor connected between the ground and the A2 pin used for the phototransistor. And a 10k ohm resistor connected between between ground and the push button.
+In this project, we will be using the following circuit. In it, we have a 1M Ohm resistor connected between the ground and the A2 pin used for the phototransistor. And a 10k Ohm resistor connected between between ground and the push button.
 
 ![Arduino IoT Bundle](assets/circuit.png)
 
-***Make sure to place the phototransistor in reverse polarity, meaning the long leg is connected to GND (-) and the short leg is connected to 3.3 V.***
+***Make sure to place the phototransistor in reverse polarity, meaning the long leg is connected to A2 and the short leg is connected to 3.3 V.***
 
 ### Setting up the Arduino Cloud