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Fix broken headings in Markdown files #2

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Fix broken headings in Markdown files #2

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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -38,7 +38,7 @@ Moisture sensors that measure the resistance or conductivity across the soil mat
## Using a Photoresistor to Measure Sunlight
The arudino’s analog inputs read voltage, so to use a resistive sensor (like the photoresistor I used to measure sunlight), you have to set up a voltage divider. This is just a really simple circuit which divides the voltage drop between your sensor and a known resistor. You know the current is the same for both, so you can calculate the resistance of your sensor using ohm’s law. The only problem here is that a photoresistor’s relationship to illuminance is log-log, that is to say it spans several orders of magnitude. So if you use a big resistor (5k - 10k ohm) in your voltage divider, your sensor will be sensitive to low light levels, but you won’t be able to tell the difference between a sunny day and an overcast one. Since this thing’s going outside, I used a 100 ohm resistor, which should hopefully give me good differentiation between levels of brightness in the daylight. There are sensors out there that do a better job of measuring sunlight intensity than a simple photoresistor. I just included it in the project because I had one on hand.

#Final Thoughts
# Final Thoughts
After posting this project to Reddit and YouTube, I got a few good suggestions. Also, since I've had it running for a few weeks now, I've had a few thoughts of my own. I'll try to update this section as I encounter issues or improvements.
* Can you get something similar off the shelf for cheaper than the cost to build it yourself? Almost certainly. This was first and foremost a learning opportunity for me.
* Can this be monitored wirelessly over wifi/bluetooth/etc.? Almost certainly. I don't have any experience in that, and I wasn't prepared to add another notoriously finicky element to the project (I struggle to get the wifi on my laptop to work sometimes!). I think it would be a neat next step for the project, though.
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