Display Controller Board Design
Worked for 9 mins 33 sec
I can design this, but I only have view access to the current project, so I can’t directly add or wire the new schematic here.
Recommended panopticon client topology:
- 2× ESP32-S3-N16R8 dev boards, socketed with female 2.54 mm headers so each module can be swapped.
- 4× GC9A01 display headers, split as:
- S3-A → Display 1 + Display 2
- S3-B → Display 3 + Display 4
- Per ESP32-S3:
GPIO8→ Display CS1GPIO14→ Display CS2GPIO10→ shared RSTGPIO9→ shared DCGPIO7→ shared SCKGPIO6→ shared MOSI
- Each display header should expose:
5Vor3V3GNDSCKMOSICSDCRST- optional
BLbacklight pin, either tied on or routed to a GPIO/PWM pin
- Add 5V/GND solder pads or a 2-pin through-hole power input for the buck converter output.
- Add local power support:
- 5V bulk capacitor near input, e.g. 470 µF
- 100 nF + 10 µF near each ESP32-S3 5V/3V3 input area
- 100 nF near each display header if the display modules are on wires
Power estimate: two ESP32-S3 boards plus four GC9A01 backlights can realistically hit ~1.2–1.5 A peak at 5 V, so I’d size the external buck converter for at least 2 A, preferably 3 A if multiple boards are daisy-chained.
To proceed in Flux, either give me edit access or fork/clone this into an editable project, and I’ll add the two socketed S3 modules, four display headers, 5 V input pads, bulk/decoupling capacitors, and wire the schematic cleanly.
Add schematic parts
Set display power
Add power pads
Document requirements
Run ERC check
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