#robotics Logs

Oct 24 2019

03:05 AM BitEvil is now known as SpeedEvil
05:35 AM fling_ is now known as fling
07:51 PM Malvolio is now known as Guest55819
09:32 PM sinned6915: rue_mohr: any suggestions for a maker grade oscilliscope ?
09:33 PM sinned6915: i dont have access to one, i was looking at the usb type ones.
09:34 PM sinned6915: right now i am trying to check 3D pritner thermistor circuits for blips in either Vref, Aground and Aref for random blips
09:35 PM sinned6915: https://i.imgur.com/lihJ27y.png
09:36 PM sinned6915: here the gadget is sitting still, red is hotend, blue is bed. it just has power to the controller via a wall wart transformer
09:36 PM sinned6915: i thought might be good to ask for budget oscilliscope
09:51 PM rue_mohr: hi
09:52 PM rue_mohr: sinned6915, what kinda projects do you do analog or digital?
09:52 PM rue_mohr: microcontrollers? transistor op-amps?
09:52 PM sinned6915: not sure how to answer that.
09:53 PM sinned6915: it would be general shop equipm
09:53 PM sinned6915: and car fixing grear
09:53 PM sinned6915: 3d printers, arduino type stuff
09:53 PM rue_mohr: well, if its mote than just a temp sensor
09:53 PM sinned6915: maybe use it for some logic analysing
09:53 PM rue_mohr: the DSO138 is fine for basic stuff
09:53 PM rue_mohr: but its not fast
09:53 PM sinned6915: i really want to LEARN how to use one
09:54 PM rue_mohr: if your doing all digtal stuff, one of the 8 channel logic analizers is great
09:55 PM sinned6915: ok, i will look into the dso
09:55 PM rue_mohr: or just get it
09:56 PM rue_mohr: https://www.aliexpress.com/item/32993003996.html
09:57 PM rue_mohr: carefully, its usually a kit to assemble yourself
09:59 PM rue_mohr: less than $17CAD means there is something wrong with what your looking at
09:59 PM sinned6915: yes, that is where i was finding too
09:59 PM sinned6915: k.
10:00 PM sinned6915: i found these vids, they seem ok - https://www.youtube.com/watch?v=Nc3XQakqgn8
10:01 PM rue_mohr: I have one, its fine for low and mid freq stuff
10:03 PM sinned6915: thanks for your help!
10:04 PM sinned6915: bar graph looks good btw!
10:04 PM rue_mohr: for digital stuff the logic analizers are just better
10:04 PM rue_mohr: heh
10:05 PM rue_mohr: now I have a lm3914 replacement
10:06 PM sinned6915: i was trying to understand the diff btwn the logic analysers and oscilliscopes
10:06 PM sinned6915: the LA's seems to be a specialized subset of scopes?
10:07 PM rue_mohr: on or off
10:07 PM rue_mohr: but effectivly a digital storage scope
10:07 PM rue_mohr: wide time range
10:08 PM sinned6915: eventually, i would probably end up with both
10:44 PM Sky_Scraper: I everybody! hope to be in the right channel, I'm getting pretty good in python and programming automations for both online and offline purposes. I want to start playing in the real world so I will soon get some arduino hardware, go back on C and play with that. My question is, besides Arduino, what are in the world, the "standard" ways to, generally speaking, control voltage, current, maybe servos, via PC usb? I don't know
10:44 PM Sky_Scraper: anything about it, so please really just talk about the basics. Like if I want to switch on a single led, from my PC usb, usually, what are the hardware required, the most used IDE, and the most used programming language? thanks!
10:44 PM rue_shop3: k
10:45 PM rue_shop3: I use avrs (arduino) as a computing to real world bridge
10:45 PM rue_shop3: simple things they can take care of directly
10:45 PM Sky_Scraper: hi rue_shop3
10:46 PM Sky_Scraper: I understand
10:46 PM Sky_Scraper: it seems the whole world runs on Arduino, I was wondering before arduino how people manage to, example, switch on a Led light from usb
10:47 PM rue_shop1: heh
10:47 PM rue_shop1: I use arduino for hardwarea
10:47 PM rue_shop1: I dont use the ide
10:47 PM Sky_Scraper: really proud anyway, Arduino is born 30 km from my hometown =D
10:47 PM rue_shop1: I program direct in C
10:47 PM rue_shop1: sometimes I keep the bootloader
10:47 PM Sky_Scraper: cool, well, I'm gonna get one of this
10:47 PM rue_shop1: rarely, its handy to use arduino env for leverage on some high-level function/library
10:48 PM rue_shop1: knockoffs are fine
10:48 PM rue_shop1: they are just carriers for the microcontrollers
10:48 PM rue_shop1: I use lots of pro-mini
10:48 PM rue_shop1: you using linux?
10:48 PM Sky_Scraper: cool! thanks, yep Linux all day everyday
10:49 PM rue_shop1: ok
10:49 PM rue_shop1: hey want to do a quick environment setup now?
10:49 PM Sky_Scraper: and I used to know C so good stuff you don't even need an ide or to compile in another language
10:49 PM Sky_Scraper: what do you mean?
10:53 PM chisight: arduino is handy for the bootloader. but meh on the rest. bypass most of their shit unless it's some prototype to be done in minutes.
10:54 PM zhanx: ^
10:54 PM chisight: the nano is handy because the usb serial is included for pennies.
10:54 PM chisight: pro micro if not prototyping.