Smart Ear Tag PCB Design

Most congested routing area
The densest cleanup zone appears to be the power-harvester cluster in the left-middle of the board, roughly:

Table


RegionApprox. areaWhy it looks worst
Energy harvester / storage sectionX ≈ -16 mm to 0 mm, Y ≈ 15 mm to 21 mmMany short trace segments, vias, and tight fanout concentrated around the boost/PMIC network
Components concentrated there

Table


Components
U57, L90, C1, C2, C3, R5, R6, R7, D6
Secondary congested area

Table


RegionApprox. areaNotes
USB / regulator cornerX ≈ -4 mm to 7 mm, Y ≈ 22 mm to 39 mmDense vertical routing around J4, U6, C21, C22, C23, C24
Lowest-priority congestion

Table


RegionNotes
RF side near U3, J1, and J2More open overall than the harvester section
Recommended cleanup order
  1. U57 power-harvester cluster
  2. J4 / U6 USB-regulator area
  3. RF section last
If you want, I can next turn this into a specific reroute checklist by component/net.
apply the above
I can apply that PCB cleanup action next:
  • Rework the layout toward the intended 2-layer, RF-aware ruleset
  • Prioritize cleanup in the power-harvester cluster
  • Then clean up the USB / regulator area
  • Then address the RF section
Proceed with the layout-rule rewrite when you're ready.
C7
Capacitance
40 F
U2
Manufacturer Part Number
MD1506-12N
Manufacturer Name
RainSun Corporation
, perform a BoM consolidation review to identify passive components that are mar...

5
are there any issues in this project? @copilot

13
create a high level mermaid block diagram of this project. Include key component...

4
what is wrong with this circuit?

3
VRDIV
VBAT_OV
J2
C13
Capacitance
1nF
J4
C1
Capacitance
100uF
C12
Capacitance
1nF
R4
Resistance
4.42MΩ
R6
Resistance
10MΩ
R11
Resistance
4.42MΩ
OK_HYST
C17
Capacitance
10uF
R8
Resistance
0 Ω
VBAT
R16
Resistance
DNP Ω
VBAT_OV
R2
Resistance
4.22MΩ
C18
Capacitance
47pF
USB_D-
C2
Capacitance
4.7uF
VBAT
VBAT_UV
VBAT_OK
R9
Resistance
4.02MΩ
VSTOR
R3
Resistance
4.42MΩ
C8
Capacitance
7.5pF
C20
Capacitance
10uF
J1
V_SOLAR
GND_USB
C10
Capacitance
47pF
OK_PROG
VOC_SAMP
V_SOLAR
VRDIV
VBAT_UV
3V3
C11
Capacitance
100nF
VRDIV
R1
Resistance
1.43MΩ
VOC_SAMP
R10
Resistance
5.9MΩ
OT_PROG
R7
Resistance
120C Ω
C6
Capacitance
0.01uF
R15
Resistance
0 Ω
C5
Capacitance
0.1uF
USB_D+
C4
Capacitance
4.7uF
OT_PROG
OK_PROG
C9
Capacitance
DNP F
V_SOLAR
VSTOR
R13
Resistance
DNP Ω
GND_USB
OK_HYST
GND_USB
VSTOR
R5
Resistance
5.6MΩ
R14
Resistance
0 Ω
VBAT
VRDIV
R12
Resistance
5.6MΩ
C19
Capacitance
100nF
C3
Capacitance
0.1uF
GND_USB
L90
Inductance
22uH
SC3
VDD_LR
SC2
3V3
FB2
SC1
FB1
VDD_NRF
SC4
3V3
L1
Inductance
18nH
U1
GND
GND
D1
D6
D4
D2
D5
U57
Part Type
Integrated Circuit
Manufacturer Name
Texas Instruments
Manufacturer Part Number
BQ25504RGTT


Solar power eartag for WM1110

Solar power eartag for WM1110 thumbnail
To power the wm1110 from a hybrid lithium ion capacitor, an efficient ultra-low power boost converter with battery management is used to generate power BQ25504RGTT

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$17.50–$17.81

Digi-Key

$46.63–$52.90

LCSC

$8.50–$8.82

Mouser

$30.71

Verical

$14.99–$42.32

Controls