What could be cooler than launching model rockets? Launching a lot of them! To control multiple rocket launches relative to one another and put on an utterly amazing backyard air show, Joe designed a circuit (replicated for each rocket) consisting of two 555 timers configured for monostable operation and a high-current FET. A single launch button is wired parallel to all of the circuits. Delay times (from the activation of the launch button to the activation of the FET) are adjusted with a potentiometer and range from a small fraction of a second to tens of seconds.
MODEL ROCKET LAUNCH SEQUENCER PARTS LIST
For Joe's instructions on how to build your own model rocket launch sequencer, click here .
|Amt||Part Description||Allied Part #|
|4||100 k ohm,0.25W resistor||832-0717|
|2||1 k ohm, 0.25W resistor||832-0356|
|2||200 k ohm, 0.25W potentiometer||754-1131|
|4||0.01 muF, 50V capacitor||881-5324|
|3||100 muF, 25V capacitor||852-6560|
|2||0.1 muF, 50V capacitor||881-5336|
|1||6 pos screw terminal||409-0047|