Decentralized, Transparent, Smart Hardware Hosting
GPU cloud costs are skyrocketing. Datacenters are rigid, over-engineered, and unaffordable for hobbyists, researchers, AI startups, and edge builders.
Match hardware owners with hosts who have electricity, bandwidth, and space to spare — all backed by real-time monitoring.
Sentinel devices provide real-time monitoring, power tracking, and safety features for complete transparency.
Complete operational flow from setup to monitoring, safety shutoffs, and offline operation
Sentinel device creates its own WiFi hotspot for easy configuration:
Device sends data to cloud - NO port forwarding needed:
Data sent to cloud: Power (W, kWh), Temperature, Humidity, Smoke level, Network quality, Device status
Not sent: WiFi passwords, personal files, browsing history
PZEM-004T measures actual AC wall power consumption:
Continuous safety monitoring with emergency power disconnection:
Notifications sent to: Host (email/SMS), Renter (email), CloudShare dashboard (alert)
Dual connectivity ensures 24/7 uptime:
When internet connection lost, Sentinel continues monitoring locally:
When internet returns, automatic data synchronization:
When offline storage reaches capacity, automatic protection activates:
Why shutdown? Cannot guarantee billing accuracy without data. Prevents disputes between host/renter.
How to restore: Fix internet connection, wait for data upload, device auto-restarts server power
Renters and hosts view data through CloudShare web dashboard:
Multi-layer security ensures safe operation:
A small plug-and-play device that provides verified usage & billing for both parties
OLED Display shows real-time power consumption, environmental conditions, and system status
One-time purchase
Complete pin assignments and connection diagrams for building your Sentinel device
| Component | ESP32 Pin | Function | Notes |
|---|---|---|---|
| I2C Bus | |||
| OLED Display | GPIO 21 (SDA) | I2C Data | Address: 0x3C |
| OLED Display | GPIO 22 (SCL) | I2C Clock | |
| BME280 Sensor | GPIO 21 (SDA) | I2C Data | Address: 0x76 |
| BME280 Sensor | GPIO 22 (SCL) | I2C Clock | |
| UART/Serial | |||
| PZEM-004T RX | GPIO 16 (RX2) | Serial Receive | AC Power Sensor |
| PZEM-004T TX | GPIO 17 (TX2) | Serial Transmit | AC Power Sensor |
| SPI Bus (Ethernet) | |||
| W5500 MISO | GPIO 19 | SPI Data In | Ethernet Module |
| W5500 MOSI | GPIO 23 | SPI Data Out | Ethernet Module |
| W5500 SCK | GPIO 18 | SPI Clock | Ethernet Module |
| W5500 CS | GPIO 5 | Chip Select | Ethernet Module |
| W5500 RST | GPIO 4 | Reset | Ethernet Module |
| Digital I/O | |||
| Buzzer | GPIO 25 | PWM Output | Active HIGH |
| Button 1 | GPIO 26 | Digital Input | Pull-up enabled |
| Button 2 | GPIO 27 | Digital Input | Pull-up enabled |
| MQ-2 Digital | GPIO 32 | Digital Input | Smoke detection |
| Relay Control | GPIO 15 | Digital Output | AC Mains shutoff (HIGH-POWER) |
| Analog Input | |||
| MQ-2 Analog | GPIO 33 | ADC Input | Smoke level (0-4095) |
PZEM-004T ESP32
┌──────────┐ ┌──────────┐
│ 5V ────┼────┤ VIN (5V) │
│ GND ────┼────┤ GND │
│ TX ────┼────┤ GPIO 16 │ (RX2)
│ RX ────┼────┤ GPIO 17 │ (TX2)
└──────────┘ └──────────┘
AC Load Connection (110V/220V):
AC Input (from breaker) ──► PZEM Input Terminals
AC Output (to server) ◄── PZEM Output Terminals
The PZEM-004T has built-in current measurement.
Wire the server's AC power through the PZEM module.
The module provides isolation between AC and ESP32.
W5500 ESP32
┌──────────┐ ┌──────────┐
│ VCC ────┼────┤ 3V3 │
│ GND ────┼────┤ GND │
│ MISO ────┼────┤ GPIO 19 │
│ MOSI ────┼────┤ GPIO 23 │
│ SCK ────┼────┤ GPIO 18 │
│ CS ────┼────┤ GPIO 5 │
│ RST ────┼────┤ GPIO 4 │
│ INT ────┼────┤ (NC) │ (Optional)
└──────────┘ └──────────┘
Ethernet Connection:
RJ45 Port ◄──► CAT5/6 Cable ◄──► Router/Switch
Relay Module ESP32
┌──────────┐ ┌──────────┐
│ VCC ────┼────┤ VIN (5V) │
│ GND ────┼────┤ GND │
│ IN ────┼────┤ GPIO 15 │
└──────────┘ └──────────┘
Relay High-Power Terminals:
AC Hot (from breaker) ──► COM (Common)
AC Hot (to server) ◄── NO (Normally Open)
AC Neutral ──► Direct to server (bypass relay)
Ground/Earth ──► Direct to server (bypass relay)
OLED Display ESP32 BME280 ESP32
┌──────────┐ ┌─────────┐ ┌──────────┐ ┌─────────┐
│ VCC ────┼────┤ 3V3 │ │ VCC ────┼────┤ 3V3 │
│ GND ────┼────┤ GND │ │ GND ────┼────┤ GND │
│ SCL ────┼────┤ GPIO 22 │ │ SCL ────┼────┤ GPIO 22 │
│ SDA ────┼────┤ GPIO 21 │ │ SDA ────┼────┤ GPIO 21 │
└──────────┘ └─────────┘ └──────────┘ └─────────┘
MQ-2 Sensor ESP32
┌──────────┐ ┌─────────┐
│ VCC ────┼────┤ 3V3 │
│ GND ────┼────┤ GND │
│ D0 ────┼────┤ GPIO 32 │ (Digital output)
│ A0 ────┼────┤ GPIO 33 │ (Analog output)
└──────────┘ └─────────┘
Buzzer ESP32 Button 1 ESP32
┌──────────┐ ┌─────────┐ ┌──────────┐ ┌─────────┐
│ + ────┼────┤ GPIO 25 │ │ Pin1 ────┼────┤ GPIO 26 │
│ - ────┼────┤ GND │ │ Pin2 ────┼────┤ GND │
└──────────┘ └─────────┘ └──────────┘ └─────────┘
Button 2 ESP32
┌──────────┐ ┌─────────┐
│ Pin1 ────┼────┤ GPIO 27 │
│ Pin2 ────┼────┤ GND │
└──────────┘ └─────────┘
Note: Internal pull-up resistors enabled in software
See how much you can earn by hosting hardware in your space
Monthly host profit
Monthly host profit
Monthly host profit
Transparent pricing for hardware renters
Total monthly cost
Total monthly cost
Total monthly cost
Based on actual time-of-use electricity rates vs datacenter pricing
Monthly CloudShare cost
Monthly CloudShare cost
Monthly CloudShare cost
Platform Fee
Monthly Savings
Real-time Monitoring
Transparent Billing
Hobbyists, tinkerers, remote AI workers
Edge AI clusters, render farms, distributed compute
Enterprise partnerships, green datacenter offload
Understanding requirements, protections, and compliance for safe, legal hosting
CloudShare Basic Protection (like Airbnb's Host Guarantee):
Example: $50,000 GPU rig = $500-1,000/year equipment floater
Hosting is NOT allowed in:
Common HOA concerns and how CloudShare addresses them:
CloudShare is passive income like working from home or renting a parking space. No clients visit. No signage. No impact to common areas. Similar to home office equipment.
CloudShare requires UL-listed equipment, Sentinel automatic shutoff, and dedicated smoke detection. Fire risk comparable to home office or gaming PC. Sentinel shuts down power in 0.3 seconds.
Licensed electrician certification required. Typical 1200W GPU rig = continuous hair dryer. Sentinel monitors for overcurrent and shuts down before breaker trips.
CloudShare provides $2M liability naming HOA as additional insured at no cost. Similar to Airbnb's coverage model.
Key landlord concerns addressed:
Sentinel device tracks exact kWh usage. Typical costs: $50-400/month depending on equipment. Separately metered units have no disputes.
CloudShare provides $2M liability insurance naming landlord as additional insured at no cost. Zero liability exposure - better than tenant cooking or using space heaters.
$1M equipment damage coverage protects property. 24/7 Sentinel monitoring with automatic fire/smoke shutoff is safer than many household activities.
No business OPERATIONS occur on-site (just equipment location). Similar to remote work setup. Lease rider template provided clarifying permitted activity.
Disclaimer: Consult tax professional for specific situation. Tax treatment varies by jurisdiction and individual circumstances.
Coverage: CloudShare $2M liability + homeowner's insurance
Action: File claim immediately, cooperate with investigation
Coverage: Renter's equipment floater policy
Host liability: None if electrical system was code-compliant
Coverage: CloudShare $2M liability insurance
Action: Report immediately, do NOT admit fault
Coverage: CloudShare cyber insurance $100K + renter's policy
Host liability: Generally none (renter controls software)
Coverage: Renter's equipment floater (NOT CloudShare)
Host liability: None unless gross negligence
Comprehensive templates available in project documentation (CLAUDE.md):
This information is provided for general educational purposes only and does not constitute legal, insurance, or tax advice. Laws, regulations, and insurance requirements vary by jurisdiction, property type, and individual circumstances. Always consult with qualified professionals (attorney, insurance agent, tax advisor, licensed electrician) before beginning hosting activities. CloudShare recommends working with local professionals familiar with your specific jurisdiction's requirements. The templates and guidelines provided are starting points and may require customization for your specific situation.