Update code from Android

[Chocol8]

Hello,

I could not find any related info, so I would like to ask few questions:

1. I have pca10028 board, using s110, sdk 6, ble_app_uart code. The board gets connected to Android mobile device using NRF_UART or NRF_TOOLKIT application. There I receive messages from the board. Can I send strings from Anroid device to the board which would change parameters of my board sleep length, advertisiment length? At the moment I am using RTC1 compare events to define the length of my advertisement and sleep which useses these defines:

   #define COMPARE_COUNTERTIME (6UL) /**< Get Compare event COMPARE_TIME seconds after the counter starts from 0. */ #define COMPARE_SHUTDOWN_COUNTERTIME (COMPARE_COUNTERTIME + (6UL) )

or should I declare them as variables to be able to change them?

2. Is it possibile to know how many bytes were received from board by the phone and this information to be sent back to the board?

Thank you in advance.

[endnode]

All of that is possible simply if you write such functionality to your FW.

[Chocol8]

Thank you. Could you explain how should I use a received string to update my sleep time?

[endnode]

I don't know anything about your sleep time because that's in your code. But Nordic BLE UART Service (NUS) is basically transport layer (from your application point of view). So you can and should define some protocol on top of it and act based on the commands received. No one really works with "strings" in BLE but if you want you can encode strings on top of byte-oriented BLE GATT data, everything is possible.