u/NewCategory1955

Hello everyone,

"I'm designing an embedded hardware project with power supplies, UART, RS-485, Ethernet, sensors, and a microcontroller."

I'm designing an embedded hardware project with multiple interfaces. Using the datasheets, I've designed the complete circuit, but I'm not confident that it will behave exactly as expected. Before I manufacture the PCB, I'd like to verify that the design works correctly through simulation.

I'm looking for software that can:

• Simulate an entire embedded circuit (or at least individual functional blocks).
• Verify voltages, currents, timing, and signal behavior.
• Support common components from datasheets.
• If possible, simulate firmware as well (Arduino or other MCU code interacting with the hardware).

Is there a tool that can simulate a complete embedded design, or is it standard practice for engineers to simulate each interface separately (power supply, UART, RS-485, Ethernet, etc.)?

What simulation software do professional embedded hardware engineers typically use?
and
I'd also like to know what the typical workflow is in industry before sending a PCB for manufacturing.

Hi everyone, I’m working on an avionics project where I need to establish a communication link between a ground station (DAQ + command system) and a Launchpad Controller (LPC) connected to the rocket flight controller. (LPC side have RFD900x but need wired communication)

Requirements:

• Communication distance: ~100 meters
• Must support data transfer + power delivery
• Needs to be robust and noise‑immune (avionics environment)
• Looking for suitable protocols/standards (e.g., RS‑422, MIL‑STD‑1553, Ethernet, etc.)
• Recommendations for connectors/cabling that are rugged and reliable for aerospace use

I’d appreciate suggestions on:

• Which communication protocol is best suited for this setup
• What connectors/cables are commonly used in aerospace for 100m wired links
• How to handle power delivery alongside data (combined or separate lines)

Thanks in advance for your insights!