Party badge and BLE hardware board

Board design is in Eagle

Board consists of:

Rigado BMD-200 Bluetooth low energy based on a Nordic nRF51822

• 16MHz ARM® Cortex™ M0 CPU, 256kB of flash memory, 32kB RAM

• https://www.rigado.com/product/bmd-200/

• 2 RGB LEDs

• 10 orange LEDs addressable in pairs

• Single button

• A MCP73831 LiPo battery charger

• Spare pins (I2C)

• JTAG interface

• Micro USB - for charging only

• Kickass silkscreen

Environment is the nRFgo Studio and Keil need a segger j-link programmer custom_board.h goes in the C:\Keil_v5\ARM\Pack\NordicSemiconductor\nRF_Examples\11.0.0-2.alpha\bsp Uses the soft device s130v1 firmware

Device is programmed with the softdevice first, then the application is loaded

The badge, when powered on, will run in one of 5 modes.

• Mode 1 - 'Knight Rider' pattern
• Mode 2 - Alternating red eyes
• Mode 3 - Color strobe eyes
• Mode 4 - Battery indicator - voltage as a percentage of 3.7V. Each pair lit is 20%, flashing means 10% instead - add the pairs together to get percentage (increases to the right)
• Mode 5 - Randomly firing orange LEDs

In all modes the bluetooth stack is working as an Eddystone, which broadcasts a URL every 100ms. Newer phones will automatically see the URL and display a notification for it.