# SkyLogic AeroAlign - Implementation Status

**Date**: 2026-03-11  
**State**: AeroAlign working, CoG integration base prepared

## Repository Status

The project now has two layers:

1. working AeroAlign firmware and UI for IMU-based angle measurement
2. shared protocol and documentation base for the upcoming CoG scale extension

## Implemented

### Firmware

- Master firmware builds for `esp32-c3` and `esp32-s3`
- IMU slave firmware builds for the current slave environments, including S3
- Master and Slave use the same direct MPU6050 register access approach
- shared ESP-NOW packet format supports device typing:
  - `IMU`
  - `CoG Scale`
  - `Hybrid`
- Master data model and UI can already represent CoG-style telemetry fields

### UI

- current tabs remain angle-focused: `Sensors`, `Differential`, `System`
- mixed-device node cards are supported
- differential selection excludes CoG-only nodes
- Master battery display is hidden when the ADC path is not available

### Documentation

- README rewritten for combined AeroAlign + CoG direction
- IMU wiring brought to current C3/S3 and battery-monitoring behavior
- new CoG wiring guide added
- BOM converted from placeholder marketplace list to current component overview
- CAD readme updated to include planned CoG fixtures

## Current Hardware Documentation

- [README.md](/Users/florianklaner/Github/AeroAlign/README.md)
- [sensor_node_wiring.md](/Users/florianklaner/Github/AeroAlign/hardware/schematics/sensor_node_wiring.md)
- [cog_scale_wiring.md](/Users/florianklaner/Github/AeroAlign/hardware/schematics/cog_scale_wiring.md)
- [bom.csv](/Users/florianklaner/Github/AeroAlign/hardware/schematics/bom.csv)
- [hardware/cad/README.md](/Users/florianklaner/Github/AeroAlign/hardware/cad/README.md)
- [AEROALIGN_COG_INTEGRATION.md](/Users/florianklaner/Github/AeroAlign/docs/AEROALIGN_COG_INTEGRATION.md)

## What Works Right Now

- Master AP + web UI
- IMU node discovery over ESP-NOW
- calibration and differential measurement for angle nodes
- S3-safe IMU access path
- optional battery reporting on Master hardware where ADC is not wired

## What Is Not Finished Yet

- dedicated `firmware/cog_slave`
- HX711 integration
- tare and scale calibration persistence
- model profiles for support spacing and target CoG
- dedicated CoG workflow in the UI

## Recommended Next Step

Implement the actual CoG node firmware next, because the protocol, Master-side data path and baseline documentation are now in place.