SDI-12 Box Firmware Updater

FloraPulse SDI-12 boxes shipped from October 2026 onward carry a built-in bus bootloader: they accept new firmware through the same two wires they measure on. This page sends the current production firmware to your box and verifies it end to end. Boxes shipped earlier do not have the bootloader and cannot be updated this way — if the tool reports that, nothing was changed.

What you need

• The FloraPulse SDI-12 uploader — the small USB board with three wire clips that also uploads calibrations (it powers the box from USB). If you don't have one, email admin@florapulse.com and we'll send it.
• Any computer running Chrome or Edge.
• The FloraPulse box, disconnected from its logger, with the uploader's clips on its wires colour to colour: red to red (power), white to white (data), black to black (ground). On a box with the 3.5 mm plug (METER loggers), clip to a 3.5 mm stereo breakout: tip = power, ring = data, sleeve = ground.

Run the update

This tool needs Chrome or Edge on a computer (it talks to the uploader through Web Serial, which this browser does not provide). The page is otherwise just instructions — open it again from a desktop browser.

Plugging in or connecting to the uploader restarts the box — that's normal. The update takes 12 to 15 minutes; the box keeps its serial number and calibration through it.

Every connect also checks the uploader's own firmware. If it is older than the current version, the page updates it first, automatically (about a minute, over the same USB cable — the uploader restarts, which restarts the box too), and then goes on to the box update.

You can work in another window beside it, but keep this tab showing and the laptop plugged in: the page can only keep the laptop awake while it is on screen. The tab's title shows the progress, and when the update ends the page plays a chime and shows a desktop notification (your browser asks once, when you click Start, whether it may).

Several boxes? Switch to Several boxes above and clip the boxes you have, in parallel, colour to colour: boxes that already carry a number can all go on together, boxes at address 0 go on one at a time. Click Connect & find boxes — the page scans every address in about eight seconds and lists what it finds, and a lone box at 0 is given the next free number (write it on the box). Clip the next box beside the others, click Add box, and so on. A box may restart when another is clipped in; between runs that is harmless. Every box is listed, including one that needs nothing (already current, or too old to update) — it simply is not run. Boxes made together often carry the same probe name; that is expected and never a problem. When every box is on, click Start updates: they run one after another, 12 to 15 minutes each, and each box goes back to address 0 as it finishes — unclip finished boxes whenever you like, and clip nothing new while an update is running. A box that fails stays at its number until you click Retry the failed or Reset addresses & finish. Boxes you had already given their own addresses for a logger port are updated where they sit and left at those addresses. A few boxes run from the uploader's own power; for a larger batch power them from an always-on 12 V supply such as a Campbell logger's (not a ZL6, which powers sensors only a second a minute), with the logger's own program stopped, and clip only the white and black wires.

What the outcomes mean

Questions

Email admin@florapulse.com with the box serial (on its label), what the status line said, and the copied log.