In this paper, a hand-made clicker using ZigBee wireless communications is proposed to support active learning. The proposed clicker can achieve not only simple assembling but also the low cost, because only nine circuit components are required to assemble the proposed clicker. In the active learning employing the proposed clickers, student's answers are stored in the computer by an Excel VBA program. Therefore, based on the learning results, teachers can improve their lecture. The questionnaire result of experimental classes shows the effectiveness of the proposed clicker.