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Palm

🌴 A BLE-connected outdoor UV sensor keychain 🗝

power LiPO

wireless BLE

sensor UV Index

mcu nRF52

battery life 5 days

bom items 13

bom cost USD $50.47

vendors 4

completed July 2019

• Start
• Code
• PCB
• Bill of Materials
• Design
• Power
• CSQ
• Resources

Demo code

Other examples

1. Palm Demo
   UV BLE medium
2. Test with iOS client
   UV BLE iOS medium
3. Web BLE
   UV BLE Chrome browser html medium