so u requires two timer | Electronics › Electronics › using 555 timer need to control the timing delay along with blinking of LED at different rates › so u requires two timer April 12, 2015 at 6:23 pm #12784 Ashutosh BhattParticipant so u requires two timer circuits one that generates different time period like 15,20…. 45 sec etc an onther that generates square wave of 1 Hz and 0.5 Hz so u have to design one monostable and one astable multivibrator
