25-03-2016, 20:46
Some more info to conclude...
Basically the GPO function, is a user programmable routine that is called every minute during execution.
The code to that routine is placed on the GPO_Task.ino file. This way, when there is an software update, there is no need for the user to rewrite the personalized code again, it's just a matter of copy the existing GPO_Task.ino file, over the default GPO_Task.ino file in the upgrade package.
Where can we connect the relay?
On all v4.xx or v5.xx RX boards there are two pins marked Led+ and Led-, these two pins were previously used to control the backlight of the small TFT display which is not used since long time.
On the already assembled v6.xx RX boards there is dedicated GPO connector.
The output (Led+ pin) is a 5V signal, driven by a MosFET transistor. You can connect to those two pins, any 5V relay which not requires more than 50 ~60 mA.
A recommended method is using one of these arduino modules, depending of the load you intend to control.
![[Image: s-l225.jpg]](http://thumbs.ebaystatic.com/images/g/SqgAAOSwLVZVmk3-/s-l225.jpg)
![[Image: s-l225.jpg]](http://thumbs.ebaystatic.com/images/g/IsUAAOSw~gRVwSi7/s-l225.jpg)
![[Image: s-l225.jpg]](http://thumbs.ebaystatic.com/images/g/nJAAAOSw3ydV6VK3/s-l225.jpg)
Basically the GPO function, is a user programmable routine that is called every minute during execution.
The code to that routine is placed on the GPO_Task.ino file. This way, when there is an software update, there is no need for the user to rewrite the personalized code again, it's just a matter of copy the existing GPO_Task.ino file, over the default GPO_Task.ino file in the upgrade package.
Where can we connect the relay?
On all v4.xx or v5.xx RX boards there are two pins marked Led+ and Led-, these two pins were previously used to control the backlight of the small TFT display which is not used since long time.
On the already assembled v6.xx RX boards there is dedicated GPO connector.
The output (Led+ pin) is a 5V signal, driven by a MosFET transistor. You can connect to those two pins, any 5V relay which not requires more than 50 ~60 mA.
A recommended method is using one of these arduino modules, depending of the load you intend to control.