The ble_app_uart-sdk4.3 example that Ole Morten gave may not be compatible to use with iOS device since the MIN_CONN_INTERVAL and MAX_CONN_INTERVAL were not match with the requirement from Apple as described here
The iPhone will be disconnected with the device after 30 second when the connection parameter request sent from the device is not being accepted by the phone.
You would need to increase MIN_CONN_INTERVAL to at least 16, and MAX_CONN_INTERVAL to at least 32.
If you use the device with any other host that has different requirement, you would need to modify the connection parameter accordingly.
Here is the modified version to use with iOS devices:
The ble_app_uart-sdk4.3 example that Ole Morten gave may not be compatible to use with iOS device since the MIN_CONN_INTERVAL and MAX_CONN_INTERVAL were not match with the requirement from Apple as described here
The iPhone will be disconnected with the device after 30 second when the connection parameter request sent from the device is not being accepted by the phone.
You would need to increase MIN_CONN_INTERVAL to at least 16, and MAX_CONN_INTERVAL to at least 32.
If you use the device with any other host that has different requirement, you would need to modify the connection parameter accordingly.
Here is the modified version to use with iOS devices:
@hungbui this is a quite old answer and the "Bluetooth Accessory Design Guidelines for Apple Products" document is from 2013. Are these connection interval requirements still valid ?
