I understand what you want: not PCB layout, but a cleaner schematic drawing where parts are visually grouped and visibly connected instead of looking like floating islands.
Right now I can help with the electrical schematic/netlist, but I cannot reliably auto-arrange the schematic canvas into a polished human-readable drawing from here. The project is electrically connected through named nets, but Flux may still show components visually separated if the schematic view has not been manually organized.
What I can do next is one of these:
-
Read-only schematic readability audit
I’ll report which parts only look floating versus which are actually unconnected.
-
Create a clean schematic organization plan
I’ll give you exact functional blocks and where each component should go:
- Power input/regulator
- ATmega4808 core
- RS-485 interface
- I2C sensors/OLED
- Solenoid driver
- Fan driver
- Connectors/programming
-
Fix real schematic connectivity issues
If any capacitors or parts are genuinely not connected to nets, I can reconnect them electrically.
For the visual schematic cleanup, the target organization should be:
- Left: J1/J2 RS-485 + 12 V bus input/output
- Upper-left: AMS1117 regulator, C5, C11, 3V3 rail caps
- Center: U1 ATmega4808 with reset, UPDI, decoupling
- Upper-right: I2C devices: U4, IC1, OLED1, R1/R2
- Right: RGB LED and resistors
- Lower-right: solenoid driver Q1/D1/J4 and fan driver Q2/D2/J6
- Bottom: programming and external sensor connectors J3/J5
Important: the “floating capacitors” you see may already be electrically connected to 3V3/GND by net names. They only look floating because visible schematic wires were not drawn between them.
If you want, I can now run the read-only schematic readability audit and list every component that visually appears isolated but is electrically connected, plus any that are truly unconnected.