RecruitingDevice studyTelerehabilitation In The Home After StrokeThe purpose of this research study is to evaluate whether telerehabilitation targeting arm movement, when added to usual care, improves arm function and reduces global disability after stroke, compared to usual care alone. Patients with arm weakness due to stroke that happened in the past 90-150 days will be randomized into one of two groups: \[1\] TR and usual care; \[2\] usual care only (no TR), but people in the usual care group will be offered TR once the study is done. TR consists of 70 minutes/day of activities targeting arm function, 6 days a week for 6 weeks.