Yes you can appeal a probation revocation sentence, however you have to petition the appeallate court for permission to do so, they do not have to accept the appeal. I would encourage you to hire an attorney.
As the prior attorney answered this would be an application for discretionary appeal, meaning he does not have an absolute right for the Court of Appeals to hear the case. Violations of Probation Rule Hearings are especially difficult on appeal for a variety of reasons, and action must be taken immediately if you intend on pursuing an appeal a Motion for New Trial needs to be filed within 30 days of the hearing. That generally will not be heard until the transcript is prepared, after that the motion can be heard. If the new trial is denied then the Motion for Discretionary Appeal would be filed. You need to consult an attorney immediately if you have any intentions of doing something about this.