How I developed cellp hones from scraps –Young Yobe scientist

Twenty two-year old Yobe-based young scientist, Umar Usman Dagona, is not strange to taking up challenges.

Dagona, in 2019 participated and won the Imaging National Chemistry Competition; beating over 1,700 others in Abuja.

His story was first featured on Kanem Trust two years back which prompted the Yobe State Government to offer him a teaching job in one of the secondary schools in the state.

Dagona, who teaches at a secondary school, has now developed a cellphone which operates without a sim card.

Sharing his story with Kanem Trust, he explained that he developed the cellphones from scraps of old phones and radio sets.

He explained that, “I use scraps and circuits from other phones and make my in-built multicellular connectivity. What costs me much is the transmitter. The transmitters cost me around N15,000 each.

“You know invention is full of trial and error; some experiments worked, some failed, but the hiccups did not stop me since I started this project in February, 2019. It took me nearly three years to develop these cell phones.

“What makes these cell phones different from ordinary phones is that they can make and receive calls without sim cards.

“They are working within close distance between 20 and 50 meters only,, but I am currently putting more effort to see how I can update their network, sensor, GPS, as well as other in-built systems to enable them make calls in a wide range”