I’ve recently added our new rotary encoder PCB for use with most standard 5-pin rotary encoders. I think these stand out from other similar products because multi-application was one of the key concepts in the design of the PCB. I’ve also added 100nF capacitors to cut the debounce problem associated with rotary encoders, so there’s no need to add additional off-board components for this reason. I’ve also added 10K resistors for the purpose of limiting current and as pull up resistors. If you’d like your PCB(s) without these components pre-installed, contact me.
You can get these at http://mklec.com/components/circuit_boards_pcbs/mklec-rotary-encoder-pcb-diy