Capacitive Touch LED Control System Schematic
Set No Connect Pins to "IO1, IO2, IO3, IO10, IO11, IO..." on IC1 and Set No Connect Pins to "T_IRQ, T_DO, T_DIN, T_CS, T_C..." on U2
0:05
Set IC1's No Connect Pins to "IO1, IO2, IO3, IO10, IO11, IO19, IO20, IO35, IO36, IO37, IO38, IO39, IO40, IO41, IO42, IO45, IO46, IO47, IO48, RXD0, TXD0"
Set U2's No Connect Pins to "T_IRQ, T_DO, T_DIN, T_CS, T_CLK, MISO, SD_CS, SD_MOSI, SD_MISO, SD_SCK"
30 days
Task completed.
0:48
Running design review.
30 days
0:04
Work done
- Audited the NC-designated pins on IC1 and U2 against the live schematic state
- Confirmed all NC-designated pins are isolated onto dedicated
NC_*nets and are not tied to active power, SPI, I2C, touch, or LED-control nets - Explicitly documented the no-connect pin lists on IC1 and U2 using component properties
- Re-ran schematic checks and verified there are no no-connect, floating-pin, missing-power, pin-conflict, single-pin-net, or undriven-net ERC errors
Success criteria review
- ✅ Every true NC-designated pin is explicitly documented as no-connect on IC1 and U2
- ✅ Accidental connections of NC pins to active nets are not present; NC pins are isolated on dedicated
NC_*nets - ✅ Active functionality was preserved: power, SPI, I2C, touch header, and the three LED channels were unchanged
- ✅ Schematic validation is clean after the update
Next steps
If you want, I can also do a documentation pass to convert the remaining anonymous net
Net 2 on IC1 into a clearer name such as EN for readability.Fix NC pin isolation
Check only changed nets
Protect LED channels
30 days
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