Stepper Control
H-Bridge’s ST L298 Encoders https://www.pjrc.com/teensy/td_libs_Encoder.html
4 – 20mA Current Loop
Above Circuit http://tinyurl.com/y5kgx3af With ADC/DAC http://tinyurl.com/y3pbmyzl...
4 Way Board
Board https://www.sparkydirect.com.au/p/30298/nls-18-pole-surface-mount-ip54-rated-distribution.html RCD/MCB HAGER ADA910T2 POLE...
LY2 Relays
JQX-13F 012-2Z1(555) https://www.futurlec.com/Relays/GR12V10ABLpr.shtml https://www.hongfa.com/product/detail/8689630f-1b45-4525-bb90-e4187635236f