Create README.md

rac2030 · Jun 16, 2018 · 3f2f271 · 3f2f271
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+# i2c scanner
+
+Sample sketch to scan the I2C bus and report found devices. It's the 
+same code as seen on the [Arduino Playground](https://playground.arduino.cc/Main/I2cScanner),
+with the only difference of adapting the `Serial` speed to the defaults of the NINA module.