Arduino workshop

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1.8.65
- Fix minor bugs

1.7.8
- Weighing scale example is added
- Bluetooth weighing scale example is added
- LoRa 2-way communication example is added
- LoRa weather network example is added

1.7.7
- P10 led matrix (315MHz/433MHz) example is added
- Waveform generator example is added

1.7.5
- P10 led matrix example is added
- P10 led matrix (Bluetooth) example is added
- P10 led matrix (Wifi) example is added

1.5.0
- Remove storage permission