IntroductionShieldPi Pro is not only a powerful Raspberry Pi EMI shield HAT, but also: A high-performance power supply noise cleaner/filter Raspberry safe ON/OFF button A GPIO extender/multiplier An ultra-low noise 3.3V power supply (MkIII) An IR-remote control Receiver (MkIII) To power a RaspberryPi from GPIO Power ON/OFF status indication and signal ShieldPi Pro is suitable to all RespberryPi applications to reduce EMI noise and improve power supply performance. Improvement can be made right away by just installing it into GPIO connector of a RaspberryPi. Highlighted Features and Specifications Zero current single-point grounding shield plate to eliminate EMI noise of the Raspberry Pi Ultra-low ESR wide bandwidth 5V power supply filtering networks cover the frequency range up to GHzESR: 2mΩ@200KHz, 0.3mΩ/@2Mhz, 1mΩ@20MHz, 4mΩ/@200MHz Full 40 pins GPIO extender Full 40 pins GPIO multiplier (AUX GPIO) Has a Raspberry Pi GPIO power ON/OFF button and a connector to external power button Has an optional power on indication LED and a power on/off control signal output Can implement Raspberry Pi’s IR-remote control function when working with a MonitorPi Reduce both EMI noise and power supply noise Improve Raspberry Pi application’s performance to a higher level DIY friendly and plug and play ShieldPi Pro MkII new features Full size shield HAT that can cover the whole Raspberry Pi PCB area Better EMI suspension performance will be expected High profile GPIO connector makes it possible to work with RPi that is equipped with a heatsink ON/OFF button moved to the front edge of PCB to make it easier to operate ShieldPi Pro MkIII new upgrades over MkII Built-in ultra-low noise 3.3V/500mA power supply, capable of powering FifoPi, DAC or other devices without using additional 3.3V power supply Optical receiver makes IR remote controller working for RaspberryPi 5V input/output connector can power a RaspberryPi directly from GPIO with bypassing the USB power input. Optimized PCB layout ShieldPiPro MkIII User's manual ShieldPiPro/MkII User's manual Documents https://github.com/iancanada/DocumentDownload/tree/master/Adapters/ShieldPiPro Typical Applications Upgrade the high performance Audiophonics I-Sabre ES9038Q2M DAC Improve the TransportPi Digi/II network streamer transport Upgrade a standard RaspberryPi DAC Upgrade a basic RaspberryPi DAC or digi streamer transport Run a FifoPiQ7or FifoPi MA directly without using an additional 3.3V power supply Run a IanCanada ESS DAC directly without using an additional 3.3V power supply ShieldPi Pro MkIII works with Raspberry Pi that is equipped with a heatsink
