pyMC Console

A modern web dashboard for monitoring and managing your MeshCore LoRa mesh repeater.

Built on pyMC_Repeater by RightUp, pyMC Console provides real-time visibility into your mesh network with an intuitive, feature-rich interface.

Features

Dashboard

• Live packet metrics — Received, forwarded, dropped packets with sparkline charts
• TX Delay Recommendations — Slot-based delay optimization with network role classification (edge/relay/hub/backbone)
• LBT Insights widgets — Channel health, collision risk, noise floor, link quality at a glance
• Time range selector — View stats from 20 minutes to 7 days
• Recent packets — Live feed of incoming traffic

Statistics

• Airtime utilization — RX/TX utilization spectrum with peak and mean metrics
• Link quality polar — Neighbor signal strength plotted by compass bearing
• Network composition — Breakdown of repeaters, companions, and room servers
• Packet types treemap — Distribution of ADVERT, TXT_MSG, ACK, RESPONSE, etc.
• RF noise floor — Noise floor heatmap showing interference patterns over time
• Prefix disambiguation — Health metrics for the topology inference system

Contacts & Topology

• Interactive map — MapLibre GL with dark theme, neighbor positions, and smooth animations
• Mesh topology graph — Network connections inferred from packet paths
• Deep Analysis — One-click full topology rebuild from 20K+ packets
• Intelligent disambiguation — Four-factor scoring resolves prefix collisions
• Edge confidence — Line thickness scales with observation count
• Animated edges — Trace-in effect on toggle, smooth fade-out
• Filter toggles — Solo view for hub nodes or direct neighbors only
• Loop detection — Identifies redundant paths (double-line rendering)
• Visual identity — Yellow house icon for local node, indigo rings for neighbors
• Path health panel — Health scores, weakest links, and latency estimates for observed routes
• Mobile node detection — Identifies volatile nodes that appear/disappear frequently

Packets

• Searchable history — Filter by type, route, time range
• Packet details — Hash, path, payload, signal info, duplicates
• Path visualization — Interactive map showing packet route with hop confidence

Settings

• Mode toggle — Forward (repeating) or Monitor (RX only)
• Duty cycle — Enable/disable enforcement
• Radio config — Live frequency, power, SF, bandwidth changes

System & Logs

• System resources — 20-minute rolling CPU and memory utilization chart
• Disk usage — Storage utilization with progress bar
• Temperature — Multi-sensor temperature gauges with threshold coloring
• Live logs — Stream from repeater daemon with DEBUG/INFO toggle

Quick Start

Requirements

• Raspberry Pi (3, 4, 5, or Zero 2 W)
• LoRa module (SX1262 or SX1276 based)
• Raspbian/Raspberry Pi OS (Bookworm recommended)

Installation

# Clone this repository
git clone https://github.com/dmduran12/pymc_console-dist.git pymc_console
cd pymc_console

# Run the installer (requires sudo)
sudo bash manage.sh install

The installer will:

1. Install all dependencies
2. Set up pyMC_Repeater
3. Deploy the web dashboard
4. Configure the systemd service

Once complete, access your dashboard at http://<your-pi-ip>:8000

Management Menu

After installation, run sudo bash manage.sh to access the management menu:

┌─────────────────────────────────────┐
│     pyMC Console Management         │
├─────────────────────────────────────┤
│  1. Start Service                   │
│  2. Stop Service                    │
│  3. Restart Service                 │
│  4. View Logs                       │
│  5. Configure Radio                 │
│  6. Configure GPIO                  │
│  7. Upgrade                         │
│  8. Uninstall                       │
│  9. Exit                            │
└─────────────────────────────────────┘

Menu Options

• Start/Stop/Restart — Control the repeater service
• View Logs — Live log output from the repeater
• Configure Radio — Set frequency, power, bandwidth, SF via preset selection
• Configure GPIO — Set up SPI bus and GPIO pins for your LoRa module
• Upgrade — Pull latest updates and reinstall
• Uninstall — Remove the installation completely

Upgrading

To update to the latest version, use the TUI menu:

cd pymc_console
sudo bash manage.sh

Select Upgrade → Console UI only (recommended) or Full upgrade if backend changes are needed.

Configuration

Radio Settings

Use the Configure Radio menu option, or edit directly:

sudo nano /etc/pymc_repeater/config.yaml

Key settings:

radio:
  frequency: 927875000      # Frequency in Hz
  spreading_factor: 7       # SF7-SF12
  bandwidth: 62500          # Bandwidth in Hz  
  tx_power: 28              # TX power in dBm
  coding_rate: 6            # 4/5, 4/6, 4/7, or 4/8

Service Management

# Check status
sudo systemctl status pymc-repeater

# Start/stop/restart
sudo systemctl start pymc-repeater
sudo systemctl stop pymc-repeater
sudo systemctl restart pymc-repeater

# View live logs
sudo journalctl -u pymc-repeater -f

Hardware Requirements

• Raspberry Pi (3, 4, 5, or Zero 2 W recommended)
• LoRa Module — SX1262 or SX1276 based (e.g., Waveshare SX1262, LILYGO T3S3)
• SPI Connection — Module connected via SPI with GPIO for reset/busy/DIO1

Tested Modules

• Waveshare SX1262 HAT
• LILYGO T3S3 (via USB serial)
• Ebyte E22 modules
• Heltec LoRa 32

Troubleshooting

Service won't start

# Check for errors
sudo journalctl -u pymc-repeater -n 50

# Verify config syntax
cat /etc/pymc_repeater/config.yaml

No packets being received

1. Verify SPI is enabled: ls /dev/spidev*
2. Check GPIO configuration in manage.sh → Configure GPIO
3. Confirm frequency matches your network

Dashboard not loading

1. Verify service is running: sudo systemctl status pymc-repeater
2. Check if port 8000 is accessible: curl http://localhost:8000/api/stats

Uninstalling

cd pymc_console
sudo bash manage.sh

Select Uninstall from the menu. This removes:

• /opt/pymc_repeater (installation)
• /etc/pymc_repeater (configuration)
• /var/log/pymc_repeater (logs)
• The systemd service

How It Works

Mesh Topology Analysis

The dashboard reconstructs network topology from packet paths. MeshCore packets contain 2-character hex prefixes representing the route through the mesh:

Packet path: ["FA", "79", "24", "19"]
           Origin → Hop1 → Hop2 → Local

The Challenge: Multiple nodes may share the same 2-char prefix (1 in 256 collision chance). The system uses four-factor scoring inspired by meshcore-bot to resolve ambiguity:

1. Position (15%) — Where in paths does this prefix typically appear?
2. Co-occurrence (15%) — Which prefixes appear adjacent to this one?
3. Geographic (35%) — How close is the candidate to anchor points?
4. Recency (35%) — How recently was this node seen?

Key techniques:

• Recency scoring — Exponential decay e^(-hours/12) favors recently-active nodes
• Age filtering — Nodes not seen in 14 days are excluded from consideration
• Dual-hop anchoring — Candidates scored by distance to both previous and next hops (a relay must be within RF range of both neighbors)
• Score-weighted redistribution — Appearance counts redistributed proportionally by combined score
• Source-geographic correlation — Position-1 prefixes scored by distance from packet origin

The system loads up to 20,000 packets (~7 days of traffic) to build comprehensive topology evidence.

Edge Rendering

Topology edges are rendered with visual cues indicating confidence:

• Line thickness — Scales from 1.5px (5 validations) to 10px (100+ validations)
• Validation threshold — Edges require 5+ certain observations to render
• Certainty conditions — An edge is "certain" when:
  • Both endpoints have ≥0.6 confidence (HIGH threshold), OR
  • The destination has ≥0.9 confidence (VERY_HIGH threshold), OR
  • It's the last hop to local node
• Inclusion threshold — Edges require ≥0.4 confidence (MEDIUM threshold) for topology
• Trace animation — Edges "draw" from point A to B when topology is enabled
• Fade animation — Edges smoothly fade out when topology is disabled
• Loop edges — Redundant paths rendered as parallel double-lines in accent color

Path Visualization

Clicking a packet shows its route on a map with confidence indicators:

• Green — 100% confidence (unique prefix, no collision)
• Yellow — 50-99% confidence (high certainty)
• Orange — 25-49% confidence (medium certainty)
• Red — 1-24% confidence (low certainty)
• Gray — Unknown prefix (not in neighbor list)

License

MIT — See LICENSE

Credits

Built on the excellent work of:

• RightUp — Creator of pyMC_Repeater, pymc_core, and the MeshCore ecosystem
• pyMC_Repeater — Core repeater daemon for LoRa communication and mesh routing
• pymc_core — Underlying mesh protocol library
• meshcore-bot — Inspiration for recency scoring and dual-hop anchor disambiguation
• MeshCore — The MeshCore project and community