Industrial I/O Controller Schematic Design
112 days
While in wiring mode, you can also change the wire angle (elbow) direction of the route by pressing the “f” key. To cancel the routing mode, press the escape key.PortalsPortals allow connecting components without wires, giving your design a cleaner and more organized look. A simple example part of a portal can be found here.To connect multiple portals together, type in the same designator for each one. Every portal provided with that designator will be connected to the PCB and simulation. If two or more portals are connected properly, you should see all of the connected portals turn blue, as shown here:

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Industrial Embedded I/O Controller Board
Properties
Sectioned industrial controller schematic with named power, input, communication, watchdog, debug, and protected output blocks. Net naming uses descriptive functional rails and signal names for PCB implementation and interview presentation.
flowchart TD VIN["9-36V Field Input"] --> PROT["Fuse Reverse Protection TVS"] PROT --> BUCK["5V Buck Regulator"] BUCK --> LDO["3.3V LDO"] LDO --> MCU["STM32F103 MCU Core"] LDO --> RS485["RS-485 Transceiver"] LDO --> WDG["External Watchdog"] LDO --> ANA["Analog Buffer and ADC Front End"] J2["Dry Input"] --> DIN["Dry Input Conditioning"] --> MCU J3["Wet Input"] --> ISO["Opto Input Conditioning"] --> MCU J4["Pulse Input"] --> ISO J5["Analog Input"] --> ANA MCU --> RS485 --> J6["RS-485 Field Connector"] MCU --> OUTDRV["High Side Output Switch"] --> J7["12V Output Connector"] MCU --> DBG1["SWD Header"] MCU --> DBG2["UART Debug Header"] WDG --> MCU
9-36V input, 5V and 3.3V internal rails
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Arrow | $14.80–$25.95 |
Digi-Key | $24.93–$25.59 |
LCSC | $27.26–$27.38 |
Mouser | $31.95 |
TME | $11.92 |
Verical | $8.56–$22.25 |
Controls
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