CONFIG_GPIO=y
CONFIG_SOC_SERIES_NRF52X=y
CONFIG_SOC_NRF52840_QIAA=y
CONFIG_ARM_MPU=y
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_UART_0_NRF_UART=y
CONFIG_ENTROPY_NRF5_THR_THRESHOLD=4
CONFIG_ENTROPY_NRF5_ISR_THRESHOLD=12
CONFIG_BT=y




# Bluetooth Low Energy
# --------------------
#
# BLE is complex.  I [tom] started out with no knowledge of Zephyr nor
# BLE.  Here is an attempt to document how things fit together.
#
# The options below are annotated where necessary, complementing
# information found here:
#
# https://www.zephyrproject.org/getting-started-with-zephyr-rtos-on-nordic-nrf52832-hackable/
# https://gitlab.com/electronutlabs-public/blog/hackable_zephyr/-/blob/master/code/hackable_zephyr_ble/prj.conf
# https://www.novelbits.io/bluetooth-gatt-services-characteristics/
# https://devzone.nordicsemi.com/f/nordic-q-a/99/notification-indication-difference
#
#
#
# Glossary of terms
# 
# Glossary:
# - GATT Generic Attribute Profile
# - ATT  Attribute Protocol
# - SIG  Special Interest Group
# - UUID Universally Unique Identifier
#
# Basically, when you design a BLE device, you're designing a profile
# (GATT).
#
# Concepts
# - server: device that exposes data. accepts commands, sends responses, notifications, indications.
# - client: device that reads server's data or controls server behavior
# - profile: describes information that can be exchanged
# - service: grouping of attributes, responds to commands, sends notifications, indications
# - attribute: any unit of data exposed by a server (service, characteristic, ...)
# - attribute type: UUID, 16 bit for official SIG attributes, or 128 bit for custom
# - attribute handle: 16 bit indirection to attribute, constant during connection
# - characteristic: lowest level attributes
# - response: reply to command
# - notification: asynchronous server->client message
# - indication: notification with ack


# Increased stack due to settings API usage
# FIXME: What is settings API?
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048

CONFIG_BT=y
# Send BT debug info to console
CONFIG_BT_DEBUG_LOG=y
# Security Manager Protocol
CONFIG_BT_SMP=y
# Data Signing
CONFIG_BT_SIGNING=y
# Peripheral Role
CONFIG_BT_PERIPHERAL=y
# Enable GATT Device Information service
CONFIG_BT_GATT_DIS=y
# Number of ATT prepare write buffers.
# https://epxx.co/artigos/bluetooth_gatt.html
CONFIG_BT_ATT_PREPARE_COUNT=2
# Privcacy Feature support. Enables Resovable Private Addresses (RPAs)
CONFIG_BT_PRIVACY=y
CONFIG_BT_DEVICE_NAME="ble_simple"
# https://www.bluetooth.com/specifications/assigned-numbers
# https://www.novelbits.io/bluetooth-gatt-services-characteristics/
 

CONFIG_BT_DEVICE_APPEARANCE=833
CONFIG_BT_DEVICE_NAME_DYNAMIC=y
CONFIG_BT_DEVICE_NAME_MAX=65

CONFIG_BT_SETTINGS=y
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_FLASH_MAP=y
CONFIG_FCB=y
CONFIG_SETTINGS=y
CONFIG_SETTINGS_FCB=y