Alternative courtesy light controller by Ong Chuan Teng. 2. Automatic fan speed controlled by Jackson Lee Ming Hsia. 3. Automatic gate light with musical bell by Law Kong Keat. 4. Burglar alarm (delay facilities) by Chua Chee Chow. 5. Computer base monitoring system : addressable interface card by Twe Eng Sing. 6. Digital LED tachometer by Cheong Chi Ning. 7. Earthquake detector by Lim Leong...

by ONG CHUAN TENG
Published 1998