Agricultural & industrial telemetry
Remote sensor networks across large sites.
RF, LoRa & Satellite Communication
Wireless telemetry, LoRa communication, satellite communication support, remote sensor nodes and embedded RF systems.
Overview
What this service covers
Long-range wireless systems — LoRa point-to-point and gateway networks, RF-aware hardware, and satellite-assisted links for sites with no reliable Wi-Fi or cellular coverage. Our CoachLink ESP32 LoRa communication system is a documented example of this work — a mobile app, ESP32 gateway and remote LoRa node communicating without internet or a SIM card.
Client Problems
Problems this service solves
- A site has no Wi-Fi or cellular coverage but still needs sensor data.
- One-to-many messaging is needed across a facility without depending on the internet.
- Remote sensor nodes need to run for months on battery power.
- An existing wireless link doesn't reach far enough or drops out under real conditions.
Capabilities
What we do
- LoRa point-to-point and gateway system design
- RF telemetry design
- Remote sensor node hardware
- Long-range messaging firmware
- RF-aware PCB layout and antenna interface considerations
- Satellite communication support for offline-first deployments
Technologies
Tools & platforms
LoRa transceivers and modules, ESP32-based gateways and nodes, and RF layout practices such as impedance-aware trace routing and considered antenna placement.
LoRaESP32 gateways/nodesRF-aware PCB layout
Development Process
How we approach a wireless project
- 01Link budget review
Confirm range, terrain and data-rate requirements.
- 02Gateway & node architecture
Design the network topology and hardware.
- 03Hardware & firmware build
Build and bench-test the gateway and node firmware.
- 04Field range testing
Validate range and reliability at the actual site.
Deliverables
What you receive
- Hardware design files
- Firmware source code
- Communication protocol documentation
- Field test results, where testing is part of the engagement
Testing & Validation
How range and reliability get validated
Range and link budget are estimated before hardware is finalised, then confirmed at the actual deployment site — published range figures are measured in open line-of-sight conditions, so field testing against real terrain and antenna placement is where the estimate gets corrected. Packet reliability is checked with application-level acknowledgements and retries, and for battery-powered nodes, power draw is measured in both transmit and sleep states so the deployment lifetime is a real, bench-measured number rather than a guess.
Applications
Where this is used
One-to-many field messaging
Gateway-to-node messaging without internet dependency — see our CoachLink case study.
Battery-powered sensor nodes
Low-power nodes designed for long deployment cycles.
Related Services
Often paired with
ESP32 & UWB Development
The firmware platform behind most of our LoRa nodes.
Marine Electronics
Offshore telemetry where cellular coverage is unreliable.
IoT Product Development
Turning a wireless link into a complete monitored product.
Want more background first? Read LoRa vs WiFi for IoT Projects.
How We Can Help
How PAK-EL LAB Can Help
If a site has no reliable Wi-Fi or cellular coverage, we can design the gateway, node and firmware together, or help review an existing wireless link that isn't performing. Scope, deliverables, schedule and quotation are confirmed once we understand the site conditions, range requirements and how the data needs to reach you. We work with clients internationally and collaborate remotely as standard practice.
See also: Portfolio · ESP32 & UWB Development · Contact
FAQ
Frequently Asked Questions
How far can a LoRa link actually reach?
It depends heavily on terrain, antenna placement and obstructions — published range figures are measured in open line-of-sight conditions. We estimate a link budget up front and confirm real range with field testing at the actual site.
What happens if a message doesn't arrive?
Point-to-point links aren't guaranteed delivery by default, so we build in application-level acknowledgements and retries for anything that matters if lost.
Can this work with LoRaWAN instead of a point-to-point link?
Yes — point-to-point is simpler for a one-to-many or small-node-count deployment, and LoRaWAN is worth the added complexity once a deployment scales to many independent nodes; we'll help decide which fits.
How long can a battery-powered node run in the field?
It depends on the transmit interval, payload size and battery capacity — we measure actual power draw on the bench and design the duty cycle around your required deployment lifetime.
Discuss Your Wireless Project
Tell us the range, site conditions and data you need to move.