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Topic: here i was, just browsing along... (Read 587 times) previous topic - next topic

travis_farmer

i was searching for a simple RS485 protocol to play around with, mainly for educational reasons, when i found Nick's forum/tutorials. now, i knew it was there, but i guess i never paid much attention. i had thought the protocol was not compatible with the 485 transceiver chips i have, but upon looking closer at the datasheet, it will work. :D
now i just have to figure out a good educational project to learn the ins and outs of the library.

but the point of the post, all hail the guru's, like Nick, that take the time to provide tutorials, all while still helping us out in the forum.

I used to do my part to help out when i could, until i realized that at most times, i didn't always know as much as i thought i did. ;) hence why i have fallen back to mostly hang out in the bar.

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

Qdeathstar

#1
Feb 15, 2017, 01:50 pm Last Edit: Feb 15, 2017, 01:51 pm by Qdeathstar
The topic title feels like it should end in porn.

here i was, just browsing along... AND WHAM! BBW TRANNIES!
A creaking creeping shadow
stiff against the freezing fog
glares at a tickless watch.

Time has failed him -- all things shall pass.

travis_farmer

The topic title feels like it should end in porn.

here i was, just browsing along... AND WHAM! BBW TRANNIES!
ROFLMAO :D :D :D

no, nothing like that... this time... ;)

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

travis_farmer

maybe my mind is a little fried from work, but i am not sure if Nick's "Rolling Master" code for the RS485 library is exactly what i thought it was...

keep in mind, this is purely for my own education, though it possibly may spur a project for my train layout. i would post this elsewhere, but as there is no project in question yet, i am just throwing out thoughts to see what comes back. i am just brainstorming.

what i was thinking, and i can likely figure it out when my mind is keyed up better, if i had one master arduino that basically functions as a router of sorts, and any number of slaves that can be called upon as needed to either sense a value and report it back, or take a value, and act it out accordingly (digital out, servo out, whatever).

now for an alternative thought, each module has an Ethernet shield, rather than RS485. i have plenty of room on my network switch. so all i have to do is send some data, and receive a return value... this may be easier than rs485. but i don't think the ethernet library can just connect to multiple servers on demand, without setting a constant for the IP address. and i think i would have to write my own "router" to store IP addresses of each remote server module, and what the module is capable of doing (input, output, servo, etc).

anyway, the end result will be a add-on module for my DCC++ basestation (or at least my version of it). when it receives a turnout change order, it should know from the turnout ID where to send the order. or if a sensor has a value change, then to pass it on to the DCC++ base station. an example would be a hall-effect train detection sensor. i don't want it to poll sensors as it would be way too much traffic. so the master would need to both be a client on one port, and a server on another port (can the ethernet library do this?)

sorry if this appears poorly thought out (it actually is just that). i am really just brainstorming.

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

westfw

Quote
I used to do my part to help out when i could, until i realized that at most times, i didn't always know as much as i thought i did.
The nice part about an active forum is that the people who know "some stuff" are fully capable of helping the people that know "less stuff", leaving more time for the people like Nick to write up the great tutorials and deal with the really hard questions.  You just have to have a thick skin when someone who knows more than you "corrects" you.  (although, I've also noticed that if you can get two near-experts ARGUING about some fine details of some subject, it can be very educational indeed!)
(This is a big problem is some of the "professional" forums run by semiconductor manufacturers.  People who aren't real certain of their answers just don't help, and that frequently means that you don't get ANY useful answers.  Because the number of people working at a semiconductor company that are actually experts on any subject can be pretty small, and the people assigned to answer forum posts may not have the best (or even very good) answers...)
(It was a big wake-up call back when I was programming professionally.  We had some early "customer engineers" who were ... pretty clueless.  And yet, they would latch on to a customer problem and bug us development engineers until we provided an explanation or solution to the customer, so they were very useful.  (At least, if the company is willing to let the customer engineers bug the development engineers.   This tends to be something that falls away as companies grow.))



travis_farmer

The nice part about an active forum is that the people who know "some stuff" are fully capable of helping the people that know "less stuff", leaving more time for the people like Nick to write up the great tutorials and deal with the really hard questions.  You just have to have a thick skin when someone who knows more than you "corrects" you.  (although, I've also noticed that if you can get two near-experts ARGUING about some fine details of some subject, it can be very educational indeed!)
telling me to have a thick skin is about like telling me to sprout a rocket on my back and fly to the moon. ;)
maybe i will venture out again, but right now the "outside" of the bar seems like a wild place indeed. mostly due to what my head seems to manifest  :o
but also due to a lack of self confidence lately... hmmm, just noticed a guy in a pickup sitting in my driveway (via security camera). WTF, he is just sitting there... probably trying to leach off my Wi-Fi... ok, he left...

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

travis_farmer

Well, i ventured out of the "Bar", into Project Guidance, and posted a message. the sun is a little bright outside the "Bar" 8)

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

travis_farmer

Well, i ventured out of the "Bar", into Project Guidance, and posted a message. the sun is a little bright outside the "Bar" 8)

~Travis
now i remember why i rarely venture out of the bar... oh well

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

travis_farmer

now i remember why i rarely venture out of the bar... oh well

~Travis
sorry, mental meltdown last night.

~Travis
Current Obsession: My server rack cooler, and my CNC Router
Check out my website, i have my own under-used forum on my hobby server.

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