Ir Leong K LIr. Leong K. L. is an experienced engineer who holds several professional certifications, including Professional Engineer (Chemical) by the BEM, Chartered Chemical Engineer by IChemE and Internal Combustion Engine (ICE) Grade 1 Engineer by DOSH Malayia. With his 15 years of practical experience in the manufacturing industry and expertise in electronic and programming field, he is uniquely qualified to write about using Arduino to create intelligent devices for a smart world. Read More Read Less