FAQ: Node operation and troubleshooting
Snape 2.0Version 1.1 · 6 November 2026KC-03-009
This guide is for Snape 2.0. Other versions: Snape 1.0 · Standalone.
Q81What should be done if a node is completely unresponsive (no LED activity)?
- Check HPC voltage → Must be > 2.5 V for a healthy HPC.
- Test D-Cell voltage under load → Must be > 3.0 V.
- Power on the node and press the internal test/reset button. Observe for LED activity on the PCB.
- If no LEDs illuminate → Perform a forced firmware update (refer to Ackcio's video guide).
- If the node does not respond to the forced update → Declare as hardware failure and contact Ackcio at support@ackcio.com.
Q82How does standalone mode work for mesh nodes, and what are the requirements?
- Hardware: HW 3.6 only
- Firmware: v5.2.24.1001 or later
- No Gateway or external antenna required
- Configuration via Android device with the latest Nimbus app only
- Sampling rate as low as 1 minute (vs. standard 5-minute minimum in mesh mode)
In standalone mode, data is retrieved by physically visiting the node and downloading readings manually via Ackcio Nimbus App.
Q83Does firmware need to be updated on new nodes before deployment?
- Analogue & VW nodes: Not required; select sensor type during commissioning.
- Digital (DG) nodes: Firmware must be updated to match the connected sensor manufacturer.
Best practice: update all nodes to the latest firmware before any deployment.
Q84Can firmware updates be applied to nodes and Gateway in any order?
Yes. Node and Gateway firmware updates are independent, apply them in any sequence without impact on system operation.
Q85Why is the Nimbus app not detecting a node via Micro-USB?
Enable OTG (On-The-Go) under your Android device settings and retry.
Q86What Android OS version does the Nimbus app require?
Android OS 8.0 or higher.
Q87What should be done when a 'Failed to detect sensing module' error appears on VWS1 or VWS8?
Update the node firmware to the latest version and retry. If the error persists after the update, contact Ackcio support at support@ackcio.com with the outcome.
Q88How should nodes and the Gateway be maintained for maximum lifespan?
- Enclose nodes in IP66-rated polycarbonate boxes: expose only the antenna externally.
- For coastal/high-humidity sites: clean salt deposits from enclosures and mounting hardware regularly.
- Mount devices in elevated, sheltered positions: minimise direct rain, wind, and salt spray exposure.
- Ensure continuous, stable Gateway power: prevent flash memory corruption from frequent reboots.
The IP67-rated enclosures provide strong baseline protection. Additional enclosures are recommended for extreme environments.
Q89What should a technician carry for on-site node servicing?
A recommended on-site service kit includes:
- Fresh 3.6 V ER34615 D-Cell batteries (Tadiran or EVE, manufactured within 3 months)
- Android device with the latest Nimbus app installed
- Phillips screwdriver and test pen
- Laptop with Windows OS or Mac OS and Wi-Fi for Gateway access
- Ethernet cable
- Multimeter
- Fresh HPCs (if needed)