Hi there. i'm brand new here, and im sorry to say my fist post is asking for your help.
Im new to electronics (im only 16 ) so please excuse my stupidity.
Im trying to build a device with the following specs and was looking for some advice really:
counter to count between +40/-40 and have a chip that outputs to a vibrator when the counter is > a specified number. I need two seperate inputs for +1 and -1 aswell as a third button to reset the counter to 0. I dont necessarily need to display the count value, but i would be cool if i could.
Or if it would be easier, have the device reset to -12 (ish) and then have it vibrate when the counter reaches 0.
So far ive got word that im looking @ either
but im really unsure how to implement either of these chips into a working peice of electronix. A little digging around on the internet has led me to believe i will need to use a PIC to do the when counter > x part.
So im really asking, am i heading on the right tracks here? and do you have any resources with examples of projects of this nature? could anyone help me build something like this step-by-step?
i know that you time is valuable but i would be eternally grateful if you could help me out!
thanks
Im new to electronics (im only 16 ) so please excuse my stupidity.
Im trying to build a device with the following specs and was looking for some advice really:
counter to count between +40/-40 and have a chip that outputs to a vibrator when the counter is > a specified number. I need two seperate inputs for +1 and -1 aswell as a third button to reset the counter to 0. I dont necessarily need to display the count value, but i would be cool if i could.
Or if it would be easier, have the device reset to -12 (ish) and then have it vibrate when the counter reaches 0.
So far ive got word that im looking @ either
* 74LS688 : 8-bit comparator with appropriate <, = or > outputs
* 74LS192 : presettable up/down counter
but im really unsure how to implement either of these chips into a working peice of electronix. A little digging around on the internet has led me to believe i will need to use a PIC to do the when counter > x part.
So im really asking, am i heading on the right tracks here? and do you have any resources with examples of projects of this nature? could anyone help me build something like this step-by-step?
i know that you time is valuable but i would be eternally grateful if you could help me out!
thanks