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LoRaWAN · LEO Satellite · IoT
Testing · Phase 2
RN2903 LoRa
× LEO CubeSat
Deployment and field testing of Microchip RN2903 LoRa transceiver nodes communicating through low-earth orbit cubesats as airborne LoRaWAN gateways — extending sensor connectivity to remote agricultural land and public works infrastructure where terrestrial networks don't reach.
NodeTypeRSSISNRLast packet
RN-N01
Soil sensor
-108 dBm
+4.5 dB
14s ago
RN-N02
Rainfall gauge
-114 dBm
+2.1 dB
38s ago
RN-N03
Infrastructure
-102 dBm
+7.2 dB
2s ago
RN-N05
Dam level
-119 dBm
-0.4 dB
4m ago
System Architecture
Connectivity where
no tower exists.
The RN2903 module operates at 915 MHz with a link budget exceeding 157 dB — sufficient to close a link to a LEO cubesat at ~550km altitude. Ground nodes wake on schedule, transmit a compact LoRaWAN frame during the satellite's ~8-minute overhead pass window, and return to deep sleep. No terrestrial infrastructure required.
- ✓ RN2903 transceiver — 915 MHz, +18.5 dBm max power
- ✓ LoRaWAN 1.0.4 OTAA — over-the-air activation
- ✓ LEO pass scheduling — pre-computed TLE-based windows
- ✓ Deep sleep between passes — <10µA standby current
- ✓ Solar + LiPo power profile for multi-year field deployment
- ✓ Encrypted payload: AES-128 AppSKey + NwkSKey
Node Hardware Profile — RN-N03
ModuleMicrochip RN2903
Frequency915 MHz (AU/SA band)
Spreading FactorSF12 — max range mode
Bandwidth125 kHz
Link Budget157 dB
TX Power+18.5 dBm
Standby current<10 µA
MCUSTM32L071 + RN2903
Power source3W solar · 5000mAh LiPo
EnclosureIP67 · Field deployed
DALRRD Deployment — Sensor Coverage Map
Soil Moisture32 nodes
Rainfall18 nodes
Dam Levels12 nodes
Temperature24 nodes
Wind / Weather8 nodes
Infrastructure (DPW)14 nodes
Client Deployments
Agriculture.
Public Works.
Rural SA.
DALRRD (Department of Agriculture, Land Reform and Rural Development) needed soil, rainfall, and dam level monitoring across communal land and commercial farms in provinces where cellular coverage is patchy at best. The Department of Public Works requires infrastructure monitoring on roads, bridges, and government assets in similarly remote areas. The cubesat gateway layer closes both coverage gaps.
- ✓ DALRRD: soil moisture, rainfall, dam level, temperature
- ✓ Dept. Public Works: bridge strain, road surface, flood markers
- ✓ Data delivered to SA government data portals via REST
- ✓ 3 provinces active · Limpopo, Free State, Northern Cape
- ✓ Phase 3: expand to 300+ nodes across all 9 provinces
Platform Capabilities
Everything you need to run
an intelligent business.
From fragmented systems to a unified decision-making engine.
Intelligence
Real-Time Intelligence
Live KPIs updating as events are captured on site.
91%
SLA Compliance
R1.74M
Capex EFC
Dashboards
Operational Dashboards
Group-level visibility across every site, contractor, and risk.
Centurion✓ 100%
Menlyn Park⚠ 94%
Eastgate SC✓ 100%
Sandton City⚡ Breach
Automation
Workflow Automation
Trigger → route → resolve. Zero manual intervention.
Trigger
Route
Resolve
SLA breach → FM manager notified
VO request → digital approval queued
Cert expiry → 7-day alert triggered
Predictive
Predictive Insights
Surface risk before it materialises. EFC modelling on every project.
Actual
Forecast
Deployment
Rapid Deployment
Live within one week. Zero infrastructure required — cloud-native, mobile-first.
7days to live
0infra changes
100%cloud-native
Scope
Configure
Deploy
Live
09:14 Data schema validated across 14 sites
09:22 Contractor scorecard templates applied
09:31▋ Deploying BOQ library — 340 line items...
--:-- Going live...
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