www.keyestudio.com
Upload the program successfully, the onboard LED lights on for 1s, lights
off for 1s. Congratulation, you finish the first program.
7. Add project Libraries
(1) What are Libraries ?
Libraries are a collection of code that makes it easy for you to connect to a
sensor,display, module, etc.
For example, the built-in LiquidCrystal library helps talk to LCD displays.
There are hundreds of additional libraries available on the Internet for
download.
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