For Sigenergy system owners
SigBuddy sits on a shelf and shows what your system is doing this second — what the sun is making, what the house is drawing, where the battery is at. You stop unlocking your phone to find out.
Reads your Sigenergy system directly over your own wifi. No cloud account, no subscription, nothing leaving the house.
SigBuddy talks to your Sigenergy system over your own wifi, using the Modbus connection built into it. Your production figures never leave the house, and the display keeps working when the internet doesn't.
Switch the kettle on and watch the house figure jump. That's the whole point — fast enough that you can see cause and effect, which is when people actually change what they do.
If it loses contact with your system it greys the last readings out rather than hiding them or freezing. You can always tell live from stale at a glance. It reconnects on its own.
No battery? Say so during setup and the battery leg disappears from the diagram entirely. You get a display drawn for the system you own, not one with a dead corner.
New firmware installs from a page on your home network — no cable, no account, no plugging it into a laptop. If an update ever failed to start, it falls back to the version that worked.
No app to install, no account to make, no password to reset in two years. It's a plug-in appliance that shows you a number.
Three sizes
The 2.8-inch is for close range — a desk, a kitchen bench, the shelf by the door. The 4.3-inch reads across a room, and the 5-inch reads across a bigger one. All three show the same figures and all three set up the same way.
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320 × 240, in a printed case and stand. The one that's been in homes the longest — the layout on it is finished and hasn't needed changing.
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800 × 480, nearly four times the pixels, in a printed case and stand. Touchscreen, so setup and settings happen on the display itself.
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The same 800 × 480 touchscreen as the 4.3-inch, on a bigger piece of glass. The one to pick if it’s going somewhere you walk past rather than sit at.
Setup
Your Sigenergy system won't answer anything on your network until this is switched on, and it's off from the factory. In mySigen: System → System Settings → Modbus TCP Server Settings.
Some installers lock these settings. If you can't change it yourself, ask your installer to turn the Modbus TCP server on — it's a normal request and takes them a moment.
The 2.8-inch puts a QR code on screen: scan it, your phone joins the display, and a page opens where you pick your network. The 4.3- and 5-inch skip the phone entirely — you type it on the touchscreen. Either way it's your network name, your password, and whether you have a battery.
Pick the same network your Sigenergy system is on, and note that it joins 2.4 GHz networks only.
No IP addresses to type in. SigBuddy restarts, joins your wifi, scans for your Sigenergy system and starts drawing live power. From here it's an appliance — it comes back on its own after a power cut, and there's nothing to maintain.
Specifications
Only your wifi. SigBuddy reads your Sigenergy system directly on your local network, so when your broadband drops out the display carries on as normal. Nothing about your generation or usage is sent anywhere.
Say no to the battery question during setup and the battery is left out of the diagram completely — you get a solar, grid and house layout drawn for your system. You can change the answer later by resetting it.
No. SigBuddy speaks to Sigenergy systems specifically. If you have something else, this isn't the product for you and we'd rather say so before you buy it.
Yes, they're independent — each one reads the system on its own. A common pairing is the 4.3-inch in the kitchen and a 2.8-inch on a desk.
No. All three stand on a shelf or bench as they come. Power is a USB-C cable, so it goes wherever you have a socket.
It depends which size you have. On the 4.3-inch and the 5-inch, tap the gear and choose Change wi-fi — it restarts, asks for a network, and keeps everything it already knows about your solar system. The 2.8-inch has no touchscreen, so it's a full reset: hold the BOOT button on the back until the screen counts down from five and let go. That clears the battery answer along with the wifi, so you'll answer both again.
Three sizes, one job. If your Sigenergy system can talk Modbus on your network — and it can — SigBuddy will be showing you live power within five minutes of coming out of the box.
See the three sizes