Hello!
You may have seen the new tutorial section, and it looks like we already have a bunch of new tutorials. What we need is more tutorials, so I have created a list of tutorials below for anyone to take on. Just respond to this post with the tutorial you would like to create and get started. If you have any suggestions for other tutorials I can add them to the list as well. Upon completing the tutorial, you will be rewarded with the ez-credit value listed with each tutorial!
Some of these tutorials will be very simple, but keep in mind, it will be helpful for lots of new users.
EDIT: When you are done making the tutorials please make a post on this thread letting me know you are done. That way it will be a bit easier on me to keep things organized. Thanks!
IMPORTANT Credit must be given to any information obtained from 3rd party sources
Tutorials:
Controlling a Neo-Pixel ring with the EZ-B v4 and an Arduino - $20 bhouston Completed
How to connect and use multiple EZ-B v4s - $25 thetechguru
Speech Recognition - $10 Steve G Completed
Setting servo speed, and initialization scripts (Using the connection established command) - $10 Steve G Completed
Serial (Explanation of what it is, EZ-Script functions, peripherals that would use it, etc...) - $15
UART (Explanation of what it is, EZ-Script functions, peripherals that would use it, etc...) - $20 Richard R
i2c (Explanation of what it is, EZ-Script functions, peripherals that would use it, etc...) - $15
ADC (Explanation of what it is, EZ-Script functions, peripherals that would use it, etc...) - $15 Steve G Completed
Looping (Using repeatuntil, repeatwhile, goto, etc...) - $10 Richard R
Files (read, write, etc...) - $15 JustinRatliff Completed
Arrrays (Explanation, functions) - $15 Ravdeep Steve G Completed
Pandorabot - $20 Steve G Completed
Using a LIDAR with the EZ-B v4 - $15
Amps and Volts (Current draw, voltages for different peripherals, voltage regulators, voltage on pins, etc...) - $15 Steve G Completed
Battery choices (Different types of batteries and what to use them for) - $20 Ravdeep Completed
Power supplies (I believe that @Technopro has a thread on this. Maybe he wants to create a tutorial for power supplies using that thread) - $20 Technopro Completed
Sabertooth/Kangaroo - $25
Tip120 & Tip122 Transistor Switching Circuit Steve G Completed
Alright, I marked you down for Amps & Volts
Thanks James.
@Steve G,
For your amps and volts tutorial, Dave Schulpius gave a great analogy of water in a pipe in this thread https://synthiam.com/Community/Questions/7036&page=1 (post#10, 3rd paragraph) that I thought was useful enough that I bookmarked the page so I could refer to it in the future. The "how many volts/how many amps can x device use?" is one of the most asked questions on the forum. Would be great to have a tutorial on it.
Alan
@Alan.
Yeah the water analogy is a good one. @Rich had a great explanation of it too that helped me in my early EZ-Robot days. Thank you for the link, and I'll be sure to use it as its a great explanation, and is certainly something that needs to be addressed.
@James.
Can you ask Jeremie what the max amp limit is in the digital signal pins on the EZ-B (I think it's 20mA) and the HD servo inrush and running amp draw is please? Also the "other things" we discussed.
Thanks.
It's 10mA Steve... The inrush as you call it depends on the servo you are using and the initial load it may or may not have on it. In other words it's not going to be a static value.. Are you sure you should be writing this tutorial? Maybe you have gotten over your head here....? But what do I know...
@Richard. Nah, I'm all good
.
I just wanted to make sure about the signal pin (thanks for the info). I remember you said it was 20mA when I had a problem running an LED of digital ground and signal pins a few months back, but also remember that Jeremie said it was something else recently, but can't remember what it was.
The servo info I wanted to know was just the EZ-Robot HD servo on its own with no weight so I could use it as a comparison (I don't have any free to measure). Anyway your quote, "inrush as you call it", I thought the correct term for the power flow when a servo starts to move was called "inrush". Is that not correct? That is the term the rest of the industry uses, and the term everyone uses here too, including you.
Hey @Steve G, @RR is correct it's 10mA per digital pin.
No load, "running", current draw of our HD Servos is usually around 200mA.
"In rush" current is always higher than "running" current and appears as a large spike in current draw. "In rush" current is the instant demand of an electronic load (such as a servo) when first powering on (or being activated the first time.) As @RR mentioned, it is often load dependent. More load = more in rush current needed.