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AJMRTC Pico-Relay-B is an industrial-grade 8-channel relay expansion module built for Raspberry Pi Pico series controllers. It uses optocoupler isolation plus power isolation to separate the low-voltage control circuit and high-voltage load circuit, preventing surge voltage and electromagnetic interference from damaging the Pico mainboard.
Each channel comes with high-performance SPDT relay that supports up to 10A load. Equipped with sturdy ABS housing and DIN rail mounting structure, it can be installed inside electrical cabinets easily. Screw terminal blocks simplify secure wiring, while the Micro USB interface supports firmware flashing and real-time debugging.
This module supports MicroPython and C/C++ programming. It is widely adopted by makers and engineers for IoT, home automation, equipment monitoring, irrigation system and industrial switching applications.