VoltDash — passive Instant Readout monitoring on Android (read-only, offline, free)

I run a SmartShunt, a SmartSolar MPPT and an Orion, and I got tired of opening
VictronConnect and waiting for a connection every time I wanted to look at the
system. So I wrote an app that never connects at all.

How it works

Instant Readout devices already broadcast their state continuously over BLE
advertisements. VoltDash just listens. You paste each device’s encryption key
from VictronConnect (Settings → Product info → Instant readout details) and
the app decrypts the advertisements locally on the phone.

Because it’s passive:

  • no pairing and no active connection, so it takes nothing away from VictronConnect
  • no Cerbo/GX, no hub, no gateway, no dongle
  • as many devices at once as you like — it’s only listening to the air
  • works with no internet and no cell signal

What it shows

The main screen draws the system as one live flow rather than a device list:
solar and DC-DC coming in, battery in the middle with true SoC from the shunt,
loads going out. There are also four home-screen widget styles and a persistent
notification, so you can read the numbers from the lock screen without
unlocking the phone.

What it is not

  • Read-only. It cannot change a single setting. VictronConnect stays the tool for that.
  • Fully offline. No account, no cloud, no telemetry. Keys and readings never leave the phone.
  • Free, no ads, no subscription, and I don’t plan to add any.
  • Android only for now. The iOS build works, I just don’t have an Apple developer account yet.
  • Not affiliated with Victron in any way.

Decoded so far

SmartShunt 500/1000/2000, BMV-712 and BMV-71x, SmartSolar MPPT, Orion-Tr Smart
and Orion XS, Phoenix inverters with Instant Readout, Blue Smart chargers.

What I’d like from this forum

I’ve only been able to test against the hardware I own, which is a narrow slice
of the ecosystem. If you have a device that isn’t on that list, or one that is
but reports something that looks wrong, I’d like to hear about it —
particularly around ,
where I’ve had to infer more than I’m comfortable with. Equally useful: anything
about the combined system view that doesn’t match how you actually read your
own setup.