planedoctor
New Member
I have a useless box I got from http://frivolousengineering.com/?page_id=1568
I would like to make some changes to this and need help with a proper design.
The goal is.
Switch closed starting a 5 second delay then a Vibration motor then runs for 5 seconds then the Motor with arm is then turned on and mechanically opens switch.
This box is powered by 2x AA batteries.
I have designed a timing circuit using TLC555's. My problem is getting enough power switched for the dc motors to run.
I have tried different transistors with no luck do the the low current and low voltage this 3V circuit has. My last hope was getting some relays but I wanted some opinions first.
Should I scrap the whole idea of using these TLC555's and go with something else?
The motors are 1.5-3 Volt DC with .70A max draw
Thanks for the input.
View attachment 67247
I would like to make some changes to this and need help with a proper design.
The goal is.
Switch closed starting a 5 second delay then a Vibration motor then runs for 5 seconds then the Motor with arm is then turned on and mechanically opens switch.
This box is powered by 2x AA batteries.
I have designed a timing circuit using TLC555's. My problem is getting enough power switched for the dc motors to run.
I have tried different transistors with no luck do the the low current and low voltage this 3V circuit has. My last hope was getting some relays but I wanted some opinions first.
Should I scrap the whole idea of using these TLC555's and go with something else?
The motors are 1.5-3 Volt DC with .70A max draw
Thanks for the input.
View attachment 67247
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