Simple Switch On Time Delay Circuit on December 27, 2010 Control/ Pengendali Saklar/Relay Timer/ Osilator +
9 Second Countdown Power-On Relay With 7 segment Display on December 27, 2010 Control/ Pengendali Saklar/Relay Timer/ Osilator +
Rangkaian Radar Pompa Air (Kontrol Ketinggian Air) on September 26, 2010 Control/ Pengendali Saklar/Relay +