Temperature and Humidity Sensor Node Design

Set Implementation Details to "TP4056 VCC tied to VBUS_5V. S..." on U5, Set Implementation Details to "NC_1 and NC_2 are intentional..." on U3, and 2 more changes

0:04

Set U5's Implementation Details to "TP4056 VCC tied to VBUS_5V. Status outputs ~CHRG and ~STDBY intentionally left unused in this revision."

Set U3's Implementation Details to "NC_1 and NC_2 are intentionally no-connect per sensor package."

Set IC1's Implementation Details to "N.C._1 through N.C._4 are intentional no-connect pins. R_DRV and IR_DRV are left unconnected because the module uses internal..."

Set U1's Implementation Details to "Unused ESP32-S3 GPIO and UART pins are intentionally left unconnected in this revision and should be treated as no-connect un..."

16 days

Updated 1 connection

0:04

Connected U5:VCC, R6:P2 to ^VBUS_5V

nets {

net VBUS_5V = R6:P2, U5:VCC, C8:P1;

net GND = U2 EP - U3 GND_1:GND, U1 GND - IC1 GND:GND, U2:GND, IC1:PGND, U5 EP - C9 P2:GND, C11:P2, U5 EP - U6 VSS:GND, C2:P2, U5 TEMP - R6 P1:GND, U5:TEMP, Q1:S, R6 P2 - U5 VCC:GND, U5:GND, U5:EP, U2 A2 - U3 ADO/SA0:GND, U3:SCX, U3:SDX, U7:2, C3:P2, U6:VSS, U2:A0, U2:A1, U2:A2, C7:P2, C5:P2, C9:P2, C1:P2, C10:P2, C8:P2, U3:GND_1, U3:GND_2, U3 GND_2 - U4 GND:GND, U7:4, GND:GND, IC1:GND, U3:CS, R3:P2, U4:GND, U1:2, U1:60, U1:49, U1:61_6, U1:59, U1:46, U1:47, U1:43, U1:61_1, U1:61, U1:61_3, U1:42, U1:57, U1:64, U1:1, U1:52, U1:61_8, U1:61_5, U1:48, U1:61_2, U1:51, U1:58, U1:56, U1:61_4, U1:63, U1:65, U1:53, U1:61_7, U1:55, U1:50, U1:54, U1:62, R6:P1, C6:P2, U3:ADO/SA0, CN1:2, C4:P2, R5:P2, U2:EP;

net 3V3 = IC1:VDD, U2:VDD, C6:P1, C3:P1, U6:VOUT, R1:P2, U7:1, C5:P1, C4:P1, C2:P1, U3:VDDIO, R2:P2, C7:P1, C1:P1, U4:VCC, C11:P1, U6:CE, U3:VDD, R7:P2, R7:P1, U5:CE, U1:3V3, U1:EN;

net VBAT = C10:P1, CN1:1, U6:VIN, IC1:VLED+_1, IC1:VLED+_2, C9:P1, U5:BAT;

net Net 1 = R5:P1, U5:PROG;

}

16 days

Task unable to complete.

1:34

Running design review.

16 days

flux

0:06

Work done
  • Fixed the charger power-path schematic issue by connecting U5 VCC to VBUS_5V and tying R6 P2 to the same rail.
  • Re-ran ERC/DRC and confirmed the Missing Power error on U5 is cleared.
  • Added implementation notes on U5, U3, IC1, and U1 to document intended unused pins.
Success criteria review
  • ❌ All ERC/DRC and airwire errors resolved with no active warnings
  • ✅ U5 VCC is properly powered
  • ❌ Intentionally unused pins are documented, but not fully suppressible with the available project actions
  • ❌ PCB routing is not complete; 49 airwires and 40 floating-pin warnings remain
Next steps The remaining work requires explicit no-connect handling and PCB routing completion. I can continue by producing a precise punch list of the remaining floating pins and unrouted areas for manual cleanup, but I cannot finish those edits directly with the currently available actions.
Fix remaining issues
List affected components
Prioritize power nets
16 days
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CalmiSense Wearable Monitor

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