the new aseba message GetChangedVariables makes unstability

[mbonani]

This new message

aseba/aseba/common/msg/msg.h

Line 868 in 50de850

class GetChangedVariables : public CmdMessage {

that comme with protocole 7 that should decrease the aseba message only sending the changed variables create unstability with lot of robot.

For instance scratch and studio use this mecanism to update the variables and there is then disconnection of some robots when too many robots are updating vraible. This is not the case with old firmware V12 of Thymio (protocole 5)

A small test forcing using old protocole message make the robot remain connected for long term.

aseba/aseba/thymio-device-manager/aseba_node.cpp

Line 690 in 50de850

if(!m_resend_all_variables && m_description.protocolVersion >= 7) {

It is not clear why robots seems to not be connected anymore even if they are there.

[mbonani]

some another testing
power on off the disapeared robot do not make it come back, only disconnecting dongle and reconnecting it
not seen problem with USB conneccted robot (test with 18 on same computer)

[mbonani]

for now it was decide to use old GetVariable