Showing how the second I2C port (i2c 0) can be used on a raspberry pi, so that more I2C peripherals can be connected to it, such as connecting four BMP280 or BME280 sensors to the raspberry pi at the same time.
Casually using "accurate" versus "precise". An engineer throughout. Always a joy to watch.
KSCPMark
I appreciate that you say "eye-squared-see" instead of "eye-too-see" like I hear way too often.
LarsSveen
Very interesting. I think Matthias could do an entire series about "Woodworking and the Raspberry Pi" and people would definitely watch it, if it showed complete novices about how to make a regular woodshop into a smart woodshop.
jimthesoundman
your line printer plotter takes me back to my youth. Running Fortran on a IBM 360.
ahbushnell
AvE vs Matthias used to be metal vs wood. Now they are returning to their roots and its Arduino vs RasPi.
Useful RasPi info. This video would save someone lots of time.
recklessroges
This was EXACTLY what I was looking for. Love the explanations and the diagrams. So helpful. Thanks!
adamjenkins
Dude, I've been following your channel for something like 10 years now, and it never stops interesting me! I just recently got my first Raspberry Pi for doing projects like this. I'm going to make my own weather station at home
evanbarnes
Thank you for using the large printout. Makes it easier to follow.
DullPoints
This is certainly fringe information for the woodworking community. Nice!
samvoelkel
If you just needed a bunch of temperature sensors, the dallas DS18B20, which use 1-wire (not i2c) each have unique addresses so you can use as many as you want.
NickHorvath
Who else is here and not understanding the topic but watched b/c Matthias is the best!
ddutton
Every day at the gym my entire body is a pullup resistor.
MattTrevett
Oooo, that teaser at the end! Early prediction, "How much pressure to suck up a field mouse? (ShopVac) #NotClickbait" :)
dannyjepp
You could also use an LTC4317 to do I2C address translation.
ccoder
Love the ASCII plot. Way back in the early 70s high school students could get an account at UofT's computing centre during the summer. I would cycle down there, write programs (keypunch in, run deck of cards, collect printout, if any, debug, repeat). One of my favourite programs was an autoscaling, graphing program I wrote. I used this program early in my engineering career until I adapted it to use the Calcomp plotter connected to the company's mainframe. Nowadays there are so many plotting/graphics packages available my ascii plotting software is a fond memory. I think the autoscaling algorithm I conceived, IMHO, worked better than many of these packages by trying to maximize the amount of curve (y axis) showing in the plot window while maintaining reasonable engineering unit scaled major and minor tic marks.
JimService
Another option is using a TCA9548 Multiplexer to assign multiple unique addresses to components that have the same hardcoded address. The multiplexer can assign up to 8 different addresses and you can also assign up to 8 unique addresses for each multiplexer on a single I2C bus meaning you could connect 64 same address components on an I2C bus.
jeremymurray
Very cool! Thank you for the video and can't wait to see the final experiments and results!
Dextrian
Am I the only one who noticed your awesome Pi case? I especially like the power cord retention module.
eDoc
Very interesting, didn't understand a thing.
Seriously though, these tech videos are pretty cool and it must be very hard to make them appealing to non computer geeks.
JovemEverton
Not gonna lie.. Love the channel and have for a long time, but I had 0 clue what you were talking about today lol.
