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WIRELESS CONNECTIVITY & SENSORS
User manual Proteus-III
of the central are used for connection setup. If both modules have different connection
interval settings the peripheral requests the central to accept the peripheral’s settings af-
ter 5s. The central accepts these settings, and thus the peripheral’s connection interval
is used.
If now another Bluetooth
®
LE device (e.g. a smart phone) connects as central to a
Proteus-III module (peripheral) and the connection interval settings do not coincide, the
Proteus-III requests the smart phone to accept its settings after 5s. If the cell phone
does not accept the settings, it will be requested a further 3 times with a delay of 10s.
If the peripheral’s settings request have been rejected in all cases the connection will be
shut down. If the smart phone itself requests to update the connection interval of the
Proteus-III, the module accepts the request. Reversely, if a Proteus-III (central) connects
to another Bluetooth
®
LE device (peripheral) and the connection interval settings do not
coincide, the Proteus-III accepts all requests of the peripheral to update the connection
parameter settings.
• The connection supervision timeout defines the time after which an already established
connection is considered as lost, when no further communication has occurred.
Please ensure that all members (Proteus-III, cell phones and other
Bluetooth
®
LE devices) of a network use the same connection timing parame-
ters to avoid connection problems and changes of the connection interval dur-
ing an opened connection.
Please check the minimum connection interval that is supported by iOS. Former
iOS devices do not support connection intervals shorter than 30ms!
8.16.1. Example 1
Set the connection timing parameter to 0x00 using
with settings index 8.
Start signal
Command
Length
Settings index
Parameter
CS
0x02
0x11
0x02 0x00
0x08
0x00
0x19
Response
: Successfully modified the setting.
Start signal
Command | 0x40
Length
Status
CS
0x02
0x51
0x01 0x00
0x00
0x52
8.16.2. Example 2
Request the connection timing parameter of the module using
with settings index
8
Order code 2611011024000
145
Version 1.8 , July 2022