As RePlay for Kids expands the types of toys that are modified, we are finding that some toys require more than a simple 3.5mm receptacle to best utilize the toy. A child still needs to be able to activate it with a single switch, but newer toys may be best used by activating multiple switches or a sequence of multiple switches. Dave Young of Young Circuit Designs and Ed Rapp of Flocel got together to come up with a simple solution that would monitor a switch input and then control up to 8 outputs. The system is based on the MSP430 microcontroller and some N-channel and P-channel FETS. What happens when the switch is pressed is totally customizable in the firmware. Click the link below to download the design files, if you are interested in checking them out or making one of your own!
RePlay Switch Controller Design Files (zip file)