Bangalore Blasts: Embedded system used

as the Bangalore police are trying to ascertain the people behind the serial blasts which rattled the city on Friday, investigation has revealed that embedded chips were used as a timer to trigger all the explosions.

Police on Saturday defused a live improvised explosive device (IED) at Koramangala in the city’s IT corridor and subsequently found that all the IEDs, which exploded on Friday, were planted at least three days in advance.

Bangalore Police Commissioner Shankar M. Bidari told The Hindu that in the other recent explosions in different parts of the country cell phones were used as trigger.

An embedded chip can be programmed like a digital clock and it produces a fuse pulse that triggers the detonation.

“The IEDs had sufficient explosive material which could have caused high intensity blasts. We are trying to find out scientifically what reduced the impact of the explosion,” he said.

Mr. Bidari said investigations were on the right track but it would take time to confirm who masterminded and executed the blasts, in which a woman was killed and nine were injured. He was tight-lipped to a query on whether any terrorist group was involved.
Live explosive

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