Most connections use JST XH connectors. Only the connections that could exceed the current rating of those connectors are terminal blocks. (voltage in and MOSFETs).
The main voltage input is reverse voltage protected. For simplicity, the main voltage is now 12V only.
The USB can now power the ESP32 if there is no main voltage in. This can be used to set up the controller. Several things (0-10v, FETs, pendants) on the controller require the main voltage and will not function properly without it.
RS485 is now fully isolated. It has also auto direction control, so only 2 I/O are required (TX and RX)
Built in RJ12 for pendants and expanders like the FluidDial and Airedale.
(8) Inputs
- 3 pin XH connectors, ground, signal and SW_Vcc
- SW_Vcc selectable between 5v and 12v. One selector affects all inputs
- All have LEDs to indicate when they are activated.
- Reverse voltage protection.
(6) External motor driver connectors. Each connector has 5v and Gnd to make it easy to use common ground
(4) 5V digital outputs
(2) 3A MOSFETs