555 and 4017 recovery beacon fix
Channel: wykeradio
Date: 2014-07-20

Not really a fix but a replacement controller board for a recovery beacon. The original board is pic controlled and because i do not have the desired knowledge to do anything with micro controllers, i figured it would be just as easy to make a controller.  The controller is basically a 555 timer in astable mode which feeds the 4017B clock input. Every pulse that the 4017 receives moves the respective output pin high. The 4017 output feeds into a darlington or NPN power switching transistor and then switched the ground to the respective led module. There are 14 modules to power. 

More updates coming as soon as i get around to it.
Big thanks to eevblog.com members for helping out.