Design Review and Compliance Analysis

flux

3:23

Thought for 2 sec

Created 4 tasks.

1/4 Read uploaded WalkInPeace prompt and extract requirements

Thought for 3 sec

Completed design checks — found 86 issues.

Read schematic.

Read layout.

Read "Extract the complete design requirements, requested actions, constraints, component choices, PCB layout requirements, and validation/export instructions from this WalkInPeace FluxAI PCB prompt." in WalkInPeace_FluxAI_PCB_Prompt-8c48a42b-9e4e-4841-a66e-913af978074c.md.

Read WalkInPeace_FluxAI_PCB_Prompt-8c48a42b-9e4e-4841-a66e-913af978074c.md.

Thought for 11 sec

3/4 Compare requirements against implementation and decide needed updates

Thought for 7 sec

Thought for 5 sec

4/4 Record findings or apply safe fixes, then validate

Thought for 31 sec

Thought for 4 sec

4/4 tasks completed.

Thought for a moment

I read the uploaded prompt and updated WalkInPeace Design Review Notes with a compliance gap analysis.
Key finding: the uploaded prompt specifies a full bare-ADS1299 main board, but the current project is built around an ADS1299 breakout/module carrier, so matching the prompt requires a substantial schematic rebuild before layout/routing. Choose either A: keep the current module-based design and finish routing, or B: rebuild to match the uploaded bare-ADS1299 v1.0 prompt.
ridd11

ridd11

replace the bare asd1299 with ads1299 breakout

flux

0:17

Thought for a moment

I’ll keep the design on the ADS1299 breakout approach. First I’ll verify whether a bare ADS1299 is still present, then update the schematic/docs only if anything still points to the bare-chip implementation.

flux

0:46

Thought for 3 sec

1/4 Verify whether bare ADS1299 components/circuitry still exist in the schematic

Thought for 12 sec

Completed design checks — found 86 issues.

Read schematic.

Thought for a moment

I verified the schematic direction: the live design already uses an ADS1299 breakout/module header, not a bare ADS1299 IC. The breakout is J6, a 12-pin header with 3V3, GND, SPI, CS, DRDY, START, RESET, PWDN, BIAS/RLD, and reserved/CLK signals.
I was blocked by execution credits before updating the project files, but no schematic replacement was needed based on the live schematic. Remaining work: update the project notes/spec to remove the bare-ADS1299 option, confirm the exact ADS1299 breakout pinout matches J6, then resolve the current DRC airwires before manufacturing.
Check J6 pinout
Update project notes
Run ERC/DRC
Find breakout part

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WalkInPeace Project Specification
Purpose
Belt-clip wearable controller for pre-freezing-of-gait warning using 8-channel surface EMG plus IMU gait-phase context. Data flows from skin electrodes and IMU to ESP32-S3 compute, then to informational haptic/audio/wireless alerts. No electrical actuation is applied to the user.
Target Form Factor
  • Enclosure: approximately 85 x 55 x 20 mm belt-clip enclosure
  • PCB target from BOM: approximately 60 x 50 mm, 2-layer unless signal integrity or routing density requires 4-layer
  • External interfaces: shielded electrode leads to eight skin-surface sites plus shared bias/reference electrode
Functional Blocks
  1. EMG front-end: TI ADS1299 8-channel 24-bit ADC module, 500 SPS/channel, SPI to ESP32-S3, bias drive/lead-off support.
  2. Motion sensor: MPU-6050 I2C 6-axis IMU breakout for gait-phase segmentation and post-event confirmation.
  3. Compute/wireless: ESP32-S3 DevKitC / WROOM-1 class module for filtering, feature extraction, classification, BLE/WiFi notification.
  4. Alerts: DRV2605L haptic driver plus LRA, active 3-5 V piezo buzzer.
  5. Power: protected 1500 mAh LiPo, USB-C TP4056 charger module, regulated logic rails as needed.
Initial Engineering Assumptions
  • Prototype-friendly module-based PCB using headers for ESP32-S3 DevKitC, ADS1299 module, MPU-6050 breakout, DRV2605L breakout/IC, TP4056 USB-C charger module, JST-PH battery connector, LRA, buzzer, and electrode connector harness.
  • Electrode patient-safety boundary is treated as sensing-only; no stimulation drivers are included.
  • ADS1299 analog input and bias wiring must follow the chosen module/datasheet pinout before final layout.
  • Medical/research prototype only; not certified for clinical use without isolation, leakage-current validation, enclosure safety testing, and regulatory review.

    Purpose

    Target Form Factor

    Functional Blocks

    Initial Engineering Assumptions

Documents

    WalkInPeace Project Specification

    WalkInPeace Design Review Notes

    Firmware Starter — WalkInPeace ESP32-S3

Assets

No assets added.

WalkInPeace EMG Wearable Controller

WalkInPeace EMG Wearable Controller thumbnail
WalkInPeace belt-clip wearable PCB for 8-channel EMG, IMU, ESP32-S3 classification, haptic/audio alerts, BLE/WiFi notifications, and rechargeable LiPo power management.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$2.69–$3.53

Digi-Key

$10.96–$16.43

HQonline

$12.73

LCSC

$18.25

Mouser

$12.77

TME

$1.71

Verical

$3.25–$11.77

Controls