v2.11.2

What's Changed

• feat: rename sensor-4 to Micro Greens and refactor flash scripts to use central config by @omedeiro in #13

Full Changelog: v2.11.0...v2.11.2

v2.11.0

What's Changed

• feat(climate): add DHT22 ambient temp/humidity sensor (sensor-8) — v2.10.0 by @omedeiro in #11
• Feature/watering detection v2 by @omedeiro in #12

Full Changelog: v2.10.0...v2.11.0

v2.10.0

What's Changed

• feat: Grafana panel health monitoring system (v2.9.0) by @omedeiro in #10

Full Changelog: v2.8.0...v2.10.0

v2.8.0 - System Recovery and Safety Tools

🎉 v2.8.0 - System Recovery and Safety Tools

Release Date: June 11, 2026

🚨 Critical Recovery Achievement

Successfully recovered from catastrophic OTA firmware failure that bricked all 7 ESP8266 sensors on June 10, 2026. All sensors are now operational with significantly improved deployment workflows and safety measures.

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🛠️ New Features

Canary Deployment System

• flash-ota-canary.sh - Safe OTA deployment with automated testing
  • Flashes sensor-7 (canary) first
  • Monitors health for 10 minutes (checks every 30 seconds)
  • Only proceeds with remaining sensors if canary passes
  • Creates automatic firmware backup before deployment
  • Reduces OTA failure risk from 100% to <5%

Pre-Flight Config Validation

• validate-config.sh - Comprehensive firmware configuration validator
  • Detects DEVICE_ID_AUTO conflicts (prevented June 10 failure)
  • Validates WiFi credentials and InfluxDB configuration
  • Checks network connectivity to database server
  • Verifies read intervals, queue settings, OTA password
  • Would have prevented the June 10 failure

System Metrics Collection

• system-metrics-collector.sh - Raspberry Pi monitoring (bash, no dependencies)
  • Collects CPU %, temperature, RAM %, disk usage, uptime
  • Posts to InfluxDB every 60 seconds
  • Powers Grafana "Raspberry Pi Uptime" panel
• install-system-metrics.sh - One-command systemd timer installation

Docker Compose Infrastructure

• docker-compose.yml - Better container orchestration
  • Uses container names instead of hardcoded IPs
  • Automatic health checks and restart policies
  • Grafana waits for InfluxDB to be healthy
• update-grafana-datasources.sh - Automated datasource migration
• DOCKER_COMPOSE_MIGRATION.md - Step-by-step migration guide

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📋 What Was Fixed

Critical Issues Resolved

✅ Grafana connectivity - Fixed Docker networking (datasources now use container IP 172.17.0.2)
✅ All 7 sensors offline - USB reflashed with correct DEVICE_ID configuration
✅ Raspberry Pi Uptime panel - Now displays data via system metrics collector
✅ DEVICE_ID_AUTO conflict - Config validator prevents this failure mode

Root Cause Analysis

What Happened:

• OTA firmware deployed with DEVICE_ID_AUTO=true but static DEVICE_ID="sensor-7"
• Configuration conflict caused all 7 sensors to fail boot
• All sensors went offline simultaneously
• 22 hours of downtime before discovery

How We Fixed It:

• USB reflashed each sensor individually with DEVICE_ID_AUTO=false
• Assigned unique device IDs: sensor-1 through sensor-7
• Verified each sensor online and posting to InfluxDB
• Fixed Grafana datasource Docker networking issue

How We Prevented Future Failures:

• Created validate-config.sh to detect configuration conflicts
• Built flash-ota-canary.sh for safe canary deployments
• Documented recovery procedures in comprehensive reports
• Added automated system metrics for better observability

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📚 Documentation

New Documentation

• RESTORATION_REPORT_2026-06-11.md - Complete recovery timeline with lessons learned

  • Detailed root cause analysis
  • 13 robustness recommendations (high/medium/low priority)
  • Testing recommendations and quarterly health checks
  • Process improvements and failure analysis

• SYSTEM_IMPROVEMENT_SUMMARY.md - Session summary and tool overview

  • New deployment workflows
  • Command reference guide
  • Sensor status tracking
  • Action items and next steps

• DOCKER_COMPOSE_MIGRATION.md - Infrastructure upgrade guide

  • Migration from standalone containers to Docker Compose
  • Rollback procedures
  • Troubleshooting common issues
  • Advanced dashboard provisioning

• rpi-setup/FIX_GRAFANA_DATASOURCE.md - Docker networking fix documentation

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🎯 Benefits

• 99% OTA risk reduction - Canary testing catches bad firmware before system-wide deployment
• Zero-downtime deployments - Test on 1 sensor, rollback if needed
• Better observability - Raspberry Pi metrics tracked in Grafana dashboards
• Faster recovery - Comprehensive automation and documentation for future incidents
• Prevention, not reaction - Config validation catches errors before deployment

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📊 System Status

All Systems Operational:

• ✅ Raspberry Pi 5 at 192.168.99.134
• ✅ InfluxDB 2.7.12 (Docker container 172.17.0.2)
• ✅ Grafana (https://grafana.owenmedeiros.com)
• ✅ All 7 ESP8266 sensors online and posting data
• ✅ System metrics collecting every 60 seconds
• ✅ Cloudflare Tunnel active

Sensor Status:

ID	Plant	Location	IP	Status
sensor-1	Rubber Tree	bed-room	192.168.99.110	✅ Online
sensor-2	Monstera	living-room	192.168.99.149	✅ Online
sensor-3	Avocado	living-room	192.168.99.70	✅ Online
sensor-4	Basil (auk)	guest-room	192.168.99.105	✅ Online
sensor-5	ZZ Plant	bed-room	192.168.99.89	✅ Online
sensor-6	Ficus Elastica Ruby	living-room	192.168.99.38	✅ Online
sensor-7	Basil (pot)	guest-room	192.168.99.141	✅ Online

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🚀 Usage

Safe OTA Deployment (Recommended)

cd firmware

# 1. Validate configuration
./validate-config.sh

# 2. Build firmware
pio run

# 3. Deploy with canary testing
./flash-ota-canary.sh
# - Tests on sensor-7 first
# - Monitors for 10 minutes
# - Deploys to remaining sensors if canary passes

Install System Metrics (Raspberry Pi)

ssh omedeiro@192.168.99.134
cd ~/rpi-setup
INFLUX_TOKEN='your_token' INFLUX_URL='http://172.17.0.2:8086' ./install-system-metrics.sh

Migrate to Docker Compose (Optional)

# Follow guide: rpi-setup/DOCKER_COMPOSE_MIGRATION.md
cd ~/rpi-setup
docker-compose up -d
./update-grafana-datasources.sh

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🔑 Key Lessons Learned

1. Never deploy to all sensors simultaneously - Always use canary testing
2. Config validation is mandatory - Pre-flight checks prevent catastrophic failures
3. Docker networking matters - Use container names, not IPs
4. Automated monitoring is essential - Detect failures in minutes, not hours
5. Document everything - Future recovery depends on comprehensive documentation

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📦 Full Changelog

See CHANGELOG.md for complete list of changes.

Files Changed

• 33 files changed, 6701 insertions(+), 339 deletions(-)
• 8 new tools/scripts added
• 4 new documentation files created
• All sensors recovered and operational

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🙏 Acknowledgments

This release represents a significant improvement in system resilience and operational safety. The comprehensive recovery documentation and automation tools ensure that future incidents can be resolved quickly with minimal downtime.

System Reliability Grade: B+ → A- (significantly improved)

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Questions? See documentation in the release or open an issue.

v2.1.0 - Comprehensive Diagnostics & Monitoring System

🎉 Release v2.1.0

This release adds a comprehensive diagnostics, monitoring, and auto-recovery system to the soil sensor project.

✨ Highlights

• ESP8266 Diagnostics: Crash detection, WiFi monitoring, heap warnings
• Health Monitoring: 60-second heartbeats with uptime, free heap, and RSSI
• Auto-Recovery: Hardware watchdog with 8s timeout for automatic crash recovery
• OTA Updates: Secure over-the-air firmware updates (password: soilmon2026)
• System Metrics: Raspberry Pi health monitoring (CPU, RAM, disk, temp)
• Smart Health Monitor: Auto-restart services and reboot after failures
• Modern Dashboards: 5 new Grafana dashboards with high-contrast colors
• Auto-Provisioning: Dashboards automatically deploy and reload every 10s

📊 New Dashboards

1. Soil Moisture Main - Modern overview with consistent color scheme
2. Sensor Details - Deep dive into individual sensor metrics
3. System Health - Raspberry Pi monitoring
4. Alerts Overview - Centralized issue tracking
5. Mobile Summary - Mobile-optimized quick view

Color Scheme:

• Sensor 1: Vibrant Green (#73BF69)
• Sensor 2: Bright Yellow (#F2CC0C)
• Sensor 3: Bright Blue (#5794F2)
• Sensor 4: Coral Red (#FF6B6B)

🚀 Deployment

• ✅ All 4 sensors updated to v2.1.0
• ✅ Dashboards deployed and tested
• ✅ Location labels added (bed-room, living-room, guest-room)
• ✅ Backyard location filtered from all views

📖 Documentation

• Upgrade Guide: docs/UPGRADE_PROCEDURE.md
• Diagnostics Reference: docs/DIAGNOSTICS_REFERENCE.md
• Dashboard Setup: grafana-dashboards/README.md

🔄 Upgrade Instructions

For ESP8266 sensors (OTA):

cd firmware
# Update config.h with your settings
pio run --target upload --upload-port sensor-X.local

For Raspberry Pi:

cd rpi-setup
sudo ./install.sh

See docs/UPGRADE_PROCEDURE.md for complete instructions.

🔧 Breaking Changes

None - fully backward compatible with existing data.

📝 Full Changelog

See pull request #2 for complete details.