How to Deploy Solar-Powered Wi-Fi Networks for Remote Agricultural Sensors

If you need a TX-E Connect - Outdoor node at a remote location with no mains power — a relay point on a hill, a distant gate, a far paddock — a solar setup is the practical answer. And because TX-E Connect - Outdoor is an exceptionally low-power device, the solar system required to run it is simpler and cheaper than you might expect.

This guide covers how to power a remote TX-E node off-grid, and how to add security cameras to that location without any additional wiring complexity.

How Little Power TX-E Actually Needs

TX-E Connect - Outdoor runs on 5V USB-C and draws between 0.15A and 0.45A — a peak of 2.25W under active load. That is less than a phone on standby. It is genuinely one of the most power-efficient devices you can deploy in the field, and it means the solar hardware required to run it is modest.

For context: a single solar WiFi camera typically draws 5–10W. The TX-E node powering the network those cameras connect to draws less than a quarter of that.

Powering the TX-E Node: Two Practical Options

Option 1: USB Solar Power Bank (Simplest)

For a TX-E-only node — no cameras sharing the same power supply — a quality USB power bank paired with a small solar panel is a legitimate and practical solution.

At 2.25W peak draw, a 20,000mAh (72Wh) power bank provides roughly 30+ hours of runtime with no solar input at all. A small 10–20W solar panel with a USB output will keep the power bank topped up through normal Australian daylight hours, including in winter.

What to look for:

• A power bank that supports pass-through charging — it charges from the solar panel and powers the TX-E simultaneously. Not all power banks support this; check before purchasing.

• A solar panel with a regulated USB output, not bare panel leads — voltage regulation protects the power bank from overvoltage during peak sun.

• IP65 or better weather rating on anything exposed to the elements.

This approach requires no DC wiring knowledge, no charge controller, and no electrician. It is as close to plug-and-play as off-grid power gets.

Option 2: Small 12V Solar System (More Robust)

For a more permanent installation — one that will run unattended for months at a time and handle the full range of Australian conditions — a small 12V solar system with a dedicated battery is the more robust choice.

Given TX-E's low power draw, the components required are still modest:

At 2.25W continuous, a 20Ah LiFePO4 battery (80% usable = 16Ah at 12V = 192Wh) provides around 85 hours of runtime with no solar input — well over three days of autonomy before the battery protection circuit cuts out. A 20–30W panel will comfortably recharge this in a typical Australian winter day.

These components are widely available individually from electrical and solar suppliers, but the easiest starting point is to search for a pre-matched kit that bundles the panel, controller, and mounting hardware together. Australian suppliers stock these for exactly this kind of remote deployment use case. Useful search terms:

• "12V solar panel kit with MPPT controller Australia" — finds bundled panel and controller kits from local suppliers

• "LiFePO4 12V 20Ah battery Australia" — for the battery separately, as most kits include AGM by default

• "12V to 5V USB-C buck converter" — widely available from electronics suppliers; look for a regulated converter rated to at least 1A output

• "IP66 outdoor enclosure polycarbonate Australia" — for the weatherproof housing; electrical and automation suppliers carry these

Buying the panel and controller as a kit and sourcing the LiFePO4 battery separately is usually the most cost-effective approach. Confirm the kit includes an MPPT controller specifically — many budget kits default to PWM.

Adding Security Cameras: Simpler Than You Think

The standard approach to adding cameras to a remote TX-E node is not to share a power supply — it is to use solar WiFi cameras.

Solar WiFi cameras (available from brands like Reolink, Eufy, and others at most electronics and hardware retailers) have an integrated solar panel and battery built into the unit. They are entirely self-contained for power. All they need is a WiFi network to connect to — which is exactly what the TX-E node provides.

This means adding one, two, or three cameras to a remote TX-E location involves no additional power wiring at all. Each camera handles its own energy budget independently. You mount the TX-E node, power it via USB solar as above, mount the cameras nearby, and connect them to the TX-E WiFi network through the camera's app during setup.

What to look for in a solar WiFi camera for rural use:

• IP66 weatherproofing or better — essential for exposed outdoor locations

• Night vision range of 20–30m minimum — rural properties are dark; shorter range misses the point

• Cloud connectivity — TX-E Connect units each create their own local network, so cameras need to communicate via the cloud rather than directly to a local recorder. See our camera installation guide for detail on this.

• Local SD card storage — footage saved to the camera itself does not depend on continuous cloud connectivity, which matters where internet speeds are modest

• Motion detection and push alerts — so you are notified when something happens rather than having to actively check

The solar panel on most solar WiFi cameras is sized for moderate activity — motion-triggered recording rather than continuous 24/7 streaming. For a gate camera or shed entrance that captures events rather than running a live stream, this is perfectly adequate. For a location requiring continuous recording, factor in a camera with a larger integrated battery or a supplementary solar panel.

Site Selection: Two Requirements, Not One

When choosing where to place a remote solar TX-E node, there are two independent requirements to satisfy:

WiFi line-of-sight back to the TX-E base station at the house. This is the primary constraint — if the link back to the base station is weak or broken, the node serves no purpose. Elevation helps significantly here: the higher the TX-E antenna, the more terrain it clears. A 3–5 metre galvanised steel pole is the standard approach.

Solar panel orientation — facing due north in Australia, tilted at roughly your latitude plus 10 degrees for optimal winter performance. A rough guide:

• Brisbane (~27°S): 37 degrees

• Sydney / Canberra (~34°S): 44 degrees

• Melbourne / Adelaide (~38°S): 48 degrees

• Hobart (~43°S): 53 degrees

On a pole mount these are independent: the TX-E antenna faces toward the base station, and the solar panel faces north. Plan for both when selecting the site, but prioritise WiFi line-of-sight first — connectivity is the whole point of the installation.

Installation: Key Steps

1. Test the WiFi link before installing the pole. Stand at the candidate location with your phone and confirm you can see the TX-E base station's network — even a weak signal is a good indicator the link is viable. A TX-E Roam unit is useful for exactly this, letting you walk the property and assess signal at candidate sites before committing to an installation.

2. Mount the TX-E unit at height. Elevation is the single most effective way to improve range across uneven terrain. Mount the TX-E Connect - Outdoor unit as high as practically possible, with the antenna oriented toward the base station.

3. Position the solar panel for unobstructed sky. Even partial shading — a branch tip, a fence wire — can significantly cut output. Solar cells are typically wired in series, meaning one shaded cell limits the entire panel. Survey the site at different times of day. Winter sun is lower in the sky, so objects that cast no shadow in summer may shade the panel in July.

4. Manage heat on the battery. Even LiFePO4 batteries degrade faster under sustained high temperatures. If using a 12V system, mount the battery enclosure on the shaded side of the pole or the south-facing side of any structure — not in direct afternoon sun. The solar panel itself can serve as a natural shade canopy if the enclosure is positioned beneath it.

5. Test everything on the ground before the pole goes in. Power up the complete system at ground level and confirm: TX-E Connect links back to the base, you can access the internet from your phone through the TX-E node, cameras connect and are visible in their apps. Far easier to troubleshoot before everything is 4 metres in the air.

Frequently Asked Questions

Do I need an electrician? No. This is a low-voltage DC system — 5V USB or 12V — and does not require a licensed electrician in Australia. Basic care with polarity and fusing is required; if you are not comfortable with DC wiring for the 12V option, an auto electrician can complete that portion at low cost.

Can I use an existing solar generator or portable power station? Yes, provided it has a USB-C output and supports pass-through charging. Many portable power stations (Jackery, EcoFlow, and similar) work well for this purpose and are particularly easy to deploy without any wiring. Their higher capacity also provides extended autonomy during prolonged overcast periods.

What happens during a run of bad weather? If the battery runs flat, the charge controller (in a 12V system) or the power bank's protection circuit will disconnect the TX-E node to prevent deep discharge. The node will come back online once the battery has recharged. Sizing for 3–5 days of autonomy means this should rarely occur under normal Australian conditions. For southern Victoria and Tasmania in winter, err toward 5 days.

Can I connect non-camera IoT devices to the TX-E node at this location? Yes. Any device that connects to a standard 2.4 GHz WiFi network can connect to the TX-E node — soil sensors with WiFi outputs, smart irrigation controllers, weather stations, livestock monitors. If those devices need their own power, plan for that separately; TX-E provides the network, not the power for the devices connecting to it.

What are the power input specifications for TX-E Connect - Outdoor? See the TX-E Connect - Outdoor product documentation for full power input specifications, connector type, and voltage requirements.

Summary

• TX-E Connect - Outdoor draws just 2.25W at peak — this is the key fact that makes off-grid deployment straightforward. The solar hardware required is small, cheap, and simple.

• For a TX-E-only node, a USB power bank with a small solar panel is a practical and accessible solution requiring no specialist knowledge.

• For a more permanent installation, a 20–30W panel, 20Ah LiFePO4 battery, and MPPT charge controller is a robust 12V setup sized correctly for TX-E's power draw.

• Add cameras using solar WiFi cameras — they are self-contained for power and simply connect to the TX-E WiFi network. No shared wiring, no additional power complexity.

• Prioritise WiFi line-of-sight when selecting the node site. Solar panel orientation and antenna direction are independent requirements on a pole mount.

• Test the WiFi link and the complete system on the ground before the pole goes in.

Need help planning a remote node deployment for your property? Get in touch with the TX-E team — we're happy to work through the specifics of your site.

Contact TX-E →

Shop TX-E Connect - Outdoor →