What are some of the coolest sensors I might not know about?
Most interesting Arduino modules and sensors
I was looking into making a pip-boy a while back and found an arduino compatible radiation sensor :D
More on reddit.comGetting Started with Arduino. What are some 'Must Have' components that I should buy?
You're going to have a lot of fun! When I started out I wanted to try out every component I could get my hands on and ended up spending "hundreds of dollars" (LOL: As if that's a lot of money compared to most other hobbies).
So it sounds like you've got everything you "need" so I'm going to tell you what you definitely don't need... But could have a lot of fun with:
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You definitely don't need a 5-pack of "frickin' LASERS" for $2.
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You definitely don't need a MQ-4 methane sensor for building a stink detector for $5.
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You definitely don't need a 6-axis accelerometer/gyro for $3.
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You definitely don't need a 2-pack of tiny Arduino Pro Micros (which can emulate a mouse/keyboard) for $15.
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You definitely don't need a 4-pack of small servos for $15.
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You definitely don't need a 300-pack assortment of superbright LEDs for $12.
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You definitely don't need a 10-pack of 5v buzzers that add beeps and boops to all your projects for $1.50.
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You definitely don't need a package of copper tape to make a capacitive touch-sensitive user interface for $8.
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You definitely don't need 4x brushless motors, 4x electronic speed controllers (ESCs), a flight controller, a transmitter & receiver, silicone wire, barrel connectors, LiPo batteries & charger, and loads of propellers to build your own quadcopter out of PVC.
Have fun!
Edit: I almost forgot one of my favorite toys: The 8x8 LED matrix! You definitely don't need a 10-pack of red 8x8 LED matrices for $10. Nope!
More on reddit.comWhere can I buy cheaper sensors
Your best bets would be:
If you want stuff quickly:
- Amazon
-Ebay
If you don't mind waiting:
-Ebay
-Aliexpress (my personal favorite)
-Banggood
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