I've been thinking about getting a new car - Subaru - and started doing research on all the stuff that goes into them these days.  Apparently, all the separate wiring that used to connect various sensors and devices to gauges or lights on the dash have been been replaced with a local area network - two-wire twisted wire pair - that allows the various controllers on the car to "talk" to each other.

Depending on how devices are registered onto a CANBUS, I am thinking that it might be possible to create a custom device that hardwires into the twisted-pair at some point, and if the device registration is plug-n-play, then that custom device should be able to register itself and start (a) sniffing traffic from other devices, and (b) issuing its own traffic - for example, mimicking traffic from other controllers on the CAN - which might be a handy way of permanently turning off the PoS auto start/stop feature, or at least turning it from on-by-default to off-by-default without having to remember to hit the "off" button each time one starts the car.

Sniffing the traffic on the CAN should also allow one to write one's own digital dash to get more in-depth data about functions one cares about, which might not have been displayed the way one wants on the car's built-in dash.

Houston braces for flooding to worsen in wake of storms

 High waters flooded neighborhoods around Houston on Saturday following heavy rains that have already resulted in crews rescuing more than 400 people from homes, rooftops and roads engulfed in murky water. Others prepared to evacuate their property.

A flood watch remained in effect through Sunday afternoon as forecasters predicted additional rainfall Saturday night, bringing another 1 to 3 inches (2.5 to 7.6 centimeters) of water to the soaked region and the likelihood of major flooding.

Aron Brown, 45, and his wife Jamie Brown, 41, were two of the many residents who drove or walked to watch the rising waters near a flooded intersection close to the San Jacinto River in the northeast Houston neighborhood of Kingswood.

The floodwaters had risen several feet and had begun to flood nearby restaurants and a gas station.

The water could be seen flowing into parts of the couple’s subdivision. But Aron Brown said he wasn’t worried as his home was at a higher elevation than other ones in their subdivision.

Aron Brown, who had driven from his home in a golf cart, said the flooding wasn’t as bad as Hurricane Harvey in 2017. He pointed to nearby power lines and said that flooding during Harvey had reached the top of the lines.

Jamie Brown said residents worry every time it rains heavily north of the area, forcing releases of water from Lake Livingston and Lake Conroe north of Kingwood that fill up the San Jacinto River.

“It seems to be more frequent though,” Jamie Brown said of the heavier rainfall.

RESIDENTS IN LOW-LYING AREAS ASKED TO EVACUATE

Friday's fierce storms forced numerous high-water rescues, including some from the rooftops of flooded homes. Officials redoubled urgent instructions for residents in low-lying areas to evacuate, warning the worst was still to come.

“A lull in heavy rain is expected through (Saturday) evening,” according to the National Weather Service. “The next round of heavy rainfall is expected late (Saturday) into Sunday.”....................

https://www.yahoo.com/news/houston-braces-flooding-worsen-wake-050329725.html

Break My Mind by Sammy David, Jr.


https://www.youtube.com/watch?v=1SM91DNIyHQ

Done a lot of different serial interfaces but never a CANBUS.

Next new hobby is probably going to be learning all about the CAN system in new cars and how to get onto a car's CANBUS to both sniff traffic and, possibly, figure out how to write custom traffic.

Anyone here play around with CANBUS at all?