SHINE has developed different signal processors for beam diagnostics, including processors for cold button beam position monitor (BPM), stripline BPM, chicane BPM, cavity BPM, cavity bunch arrival-time monitor (BAM), electro-optic BAM, CSR bunch length monitor (BLM), beam charge loss monitoring, and fast orbit feed-back system (FOFB). The processors employ a common SoC-FPGA-based digital motherboard and accommo-dates diverse applications by hosting various daughter-boards. This paper presents the design of these processors and the applications on SHINE.