Phidget SBC – Huawei E1752 3G USB modem
After receiving my new gadget, a Phidget SBC unit. I’ve been having a go at it.
The main goal is to have a remotely place SBC unit, with sensor measuring water levels, sending data back to central server over 3G network and powered by battery.
Since I haven’t received my sensor unit, I’ve been trying to get the 3G USB modem part up and running. Using a Huawei E1753 as a USB modem, it has not been a walk in the park. The first step was to learn how a embedded system works. Then how Buildroot, busybox and uClibc is configure and modified. Flashing the SBC unit after each change, made this process really time consuming, but it looks like the 3G modem is now recognized by the SBC.
user.info kernel: option 1-1.2:1.0: GSM modem (1-port) converter detected
user.info kernel: usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
Next step is now, either port WvDial to buildroot, or get around ppp/chat configuration. Not sure witch one is fastest. But I’ll get there eventually. A Project page will appear on the site shortly.
ppp/chat was the way to go… I actually managed to get connected, but somethings is wrong. All network application segments fails when used after the ppp connectin is up and running. Disconnecting the ppp, all applications works again (eg ping/ftp/ssh)..