Originally Posted by
Springbok Flyer
Hi guys,
Thank you for the constructive input to my question. Unfortunately I am not 'electronics' orientated and for that exact reason I have to read my manuals. The 18MZ is not very clear on having the kind of sequencer as described by most of you using other radio's. So I guess I'm left with the 555 timer (after doing a Google search as so eloquently suggested) and being educated into it's mystical powers.
Please bear with me a little longer: the 555 timer has 8 pins. If I read the 'astable' instruction, which produces a square wave at regular intervals - my (basic) logic is that if I connect the negative (common) lead from the smoke pump battery to pin #1 continuing on to the smoke pump. Then connect the positive lead (with 7.4volt in my case) to pin #8 and then from pin #3 continue the positive lead to the smoke pump - that I should get a high/low power flowing, which will alternate as long as the smoke system is switched on, hopefully producing the smoke pulsing sequence. So do I still need to build the circuit as displayed in the video provided earlier in this thread?
Cheers,
Jan
The 555 timer circuit would have to go inside the pump (between the pump motor itself and the circuit driving the pump...what brand smoke pump do you have?
P.S another cheaper and easier way is to use a relay and a capacitor.