Replied to Changing report interval and deadband on 300 controllers in the field: attributes or commands?

We did it with commands on a smaller fleet and it was a mess every time a unit missed one. Nobody could tell which…

1 week, 1 day ago

Replied to 2.2.0: conveyor belts get a width and a height, with their connection points bound to them

Rebuilt our palletising screen with the belt widths set to match the real belts. Works for us.

1 week, 3 days ago

Replied to Uno on a 12 V adapter and USB at the same time: will it fry my laptop?

No, the Uno handles both. But how is the relay powered, and where do the grounds meet? The jumping readings and the disappearing port…

2 weeks ago

Replied to Uno resets every time my Pi script opens /dev/ttyUSB0

DTR is one of the old modem control lines. On the Uno it goes through a 100 nF capacitor to the reset pin, so…

2 weeks, 4 days ago

Replied to Showing an inspection drone’s position and flight path live on a board

Did this for a roof inspection drone, so here's what I ended up with.On the Pi, pymavlink reads the MAVLink stream from TELEM2. You…

3 weeks ago

Replied to Why doesn’t LoRaWAN mesh? Four sensors behind a steel warehouse never join

Isn't there a relay feature? I'm sure I saw a gateway status called Pending somewhere in the gateway list.

1 month ago

Replied to Twenty DS18B20 probes on one Pi: dropouts past eight sensors and how to name the keys

The star is your dropout problem. 1-wire hates stubs, every leg reflects. Either run one line past every probe with tiny stubs, or split…

1 month, 1 week ago

Replied to ttyAMA0, ttyS0, serial0: which one should my Modbus HAT use on a Pi 3B+?

disable-bt plus removing the console did it. 600 polls overnight, zero CRC errors, zero timeouts. I was on ttyAMA0 talking to… nothing useful apparently,…

1 month, 3 weeks ago