I have a FEZ Hydra (not Hydra+) board, and I’ve used the cellular module with it. Now I got the latest .netmf environment and I’m no longer able to even connect the cellular module with the board in the designer. Apparently the Hydra module doesn’t have K-type socket. I’m a bit confused now that does Hydra have K-type, but Hydra+ doesn’t? Is the Hydra no longer supported and I would need to use Hydra+ to be able to connect&compile with latest environment? But as Hydra+ doesn’t have K-type socket, I’m out of luck anyway? So the only option is to upgrade my board e.g. to FEZ Spider II? Or is there a way I could use the latest .netmf with my current Hydra and continue using cellular module with it?
Looks like a bug in the latest SDK.
@ kosjanne - It is not a bug. The FEZ Hydra never had handshaking implemented in the firmware. When we released the FEZ Hydra+, we decided to remove the K socket since it was not supported. Unfortunately, the Cellular Radio module is of socket type K. While it is not recommend, it can work with regular UART without handshaking, but it requires you to manually add the driver to your project and create the driver instance yourself outside of the designer.
To add the driver to your project, download https://bitbucket.org/ghi_elect/gadgeteer/src/28aaf8776900e473740f206c602ab0857904d48d/Modules/GHIElectronics/CellularRadio/CellularRadio_43/?at=master and in the CellularRadio_43.cs file, remove line 344. https://www.ghielectronics.com/docs/122/gadgeteer-driver-modification may be of use to you as well. Note however that without handshaking data may get lost in high load situations.
[quote=“John”]
The FEZ Hydra never had handshaking implemented in the firmware. When we released the FEZ Hydra+, we decided to remove the K socket since it was not supported. [/quote]
I’d missed that announcement John and knew that I had connected the Cellular module on one of my projects. :-[