Dretful I2C 8 relay board for SRD-xxVDC-SL-C_v2
R1-3 10K, C1 1u0, relays SRD-xxVDC-SL-C -xx =voltage you choose, IC1=MCP2008/P, IC2 ULN2803, RN12 220-1K as you please, 8 LED's small enough to fit adjacent with +ve to bottom edge, connectors X1-8 and X9 KF2EDGK 5.08mm, switch DIP/DIL. I2C connector pinout compatible with my other boards - Q2W format.
See https://www.instructables.com/id/I2C-Relay-Board/ for inspiration and detail
