This was incredibly helpful. This answered a bunch of questions that I had asked other engineers and either got explanations I didn't understand or just got a shrug. Thanks for taking the time to make this video 🙌🏽
If you send the msb first then each bit will have a different significance according to the total number of bits in the frame, sending lsb first means the first bit received is always the units bit, the second is the 2's bit and the third the fours etc. This is much simpler to implement in hardware rather than the complications of msb first.
Really great format: tell 'em what you're about to tell 'em; tell 'em; then tell 'em what you told 'em. Perfect. Also, provided answers to my two unknowns: what is a uart and what is baud and why 9600. Fab.
Great question Brendan! I do not believe so... When using the serial commands, it is going to be the same number of packets sent, only done at different rate.
@@programmingelectronics i’ve looked it up and found this answer: If you have crummy cabling, or long distances, poor grounding, noisy environment, then slower baud rates can give more reliable results. Slower also uses less power as CMOS power consumption is switching frequency dependent. If the serial comm's are buffered first, so that RS232 type levels (+/- 3 to +/-12V, one wire for send, one for receive, plus Gnd) or RS485 type signals (+/-3V, but with 2 wires for sending, 2 for receiving, plus Gnd) than higher speeds and longer distances can be supported more reliably.
So perhaps the power stays the same if you just send a fixed message. But if you’re using sensors and want to extract data you are probably takibg more samples at a givzn time with a higher baudrate and thus more processing power (energy consumption). At least that’s what i would assume
Wonderful explanation. I am a beginner kindly help me with this problem. How can a simple program be written that dynamically calculates the water volume used in a tank. Given a cubical container of breadth=5, length=10 and height =20. If the tank is filled with water to an appropriate height, I know the volume of water is volume of water = volume of tank minus volume of empty space. Now, how do is the amount of water used calculated if the volume of water keeps being removed downwards after some time?
Great question Winston! With Arduino, any code in the loop() function gets repeated over and over again, as long as you have your Arduino plugged in. Assuming you have a sensor that can report the relative amount of water in your tank, like an eTape (www.adafruit.com/product/464), then you can just read from the sensor and calculate the new volume every time through the loop. So inside loop, you might do something like: - read value from water sensor --> eTapeReading = analogRead(eTapePin) - convert eTape reading to height --> You'd have to look at the data sheet for a conversion to apply (or google) - calculate volume V=πr2h ---> volume = PI * r * 2 * waterHeight - display new volume --> Serial.println(volume) Hope this helps some!
I thought TTL was Time To Live. Must have miss remembered it from my college days. Might want to check your arrow it is pointing to MSB not LSB again. I can't watch these videos without at least picking up one new thing every time. Another great video.
You’re one of the best explainers I’ve ever seen on TH-cam. Like this is Khan Academy level stuff. Nice job.
Thanks so much!! I hope it’s helpful!
This was incredibly helpful. This answered a bunch of questions that I had asked other engineers and either got explanations I didn't understand or just got a shrug. Thanks for taking the time to make this video 🙌🏽
Thanks so much for the note! Glad it helped!
Amazing video! I am totally new to electronics and was able to understand this topic because of your wonderful explanation.
Glad it was helpful! Thanks so much for watching!
If you send the msb first then each bit will have a different significance according to the total number of bits in the frame, sending lsb first means the first bit received is always the units bit, the second is the 2's bit and the third the fours etc. This is much simpler to implement in hardware rather than the complications of msb first.
Thank you Andrew! Makes sense!!
Really great format: tell 'em what you're about to tell 'em; tell 'em; then tell 'em what you told 'em. Perfect. Also, provided answers to my two unknowns: what is a uart and what is baud and why 9600. Fab.
Glad it was helpful! That is pretty much or exact format! :)
I was wondering what the heck serial communication is and this guy read my mind.
Glad it helped!
Wow, you are an excellent teacher. Thank you for this!
Thanks for watching!
Excellent explanation and appropriate use of didactic elements. Thanks
Thanks so much for watching and the feedback!
hahaha where were you when I was in college, studying engineering??😆😆 Nice job explaining the basics, dude keep it up👍👍
Thanks so much!! Really appreciate this note!
Very helpfull sir now had better idea of how serial work thanks
Thanks for the note! I’m glad it helped some!
Wow what a gem of a video! If you raise the baudrate does it mean you’ll use more power and if attached to a battery it wil run out faster?
Great question Brendan! I do not believe so...
When using the serial commands, it is going to be the same number of packets sent, only done at different rate.
@@programmingelectronics i’ve looked it up and found this answer: If you have crummy cabling, or long distances, poor grounding, noisy environment, then slower baud rates can give more reliable results. Slower also uses less power as CMOS power consumption is switching frequency dependent. If the serial comm's are buffered first, so that RS232 type levels (+/- 3 to +/-12V, one wire for send, one for receive, plus Gnd) or RS485 type signals (+/-3V, but with 2 wires for sending, 2 for receiving, plus Gnd) than higher speeds and longer distances can be supported more reliably.
So perhaps the power stays the same if you just send a fixed message. But if you’re using sensors and want to extract data you are probably takibg more samples at a givzn time with a higher baudrate and thus more processing power (energy consumption). At least that’s what i would assume
@@brendanboon9062 Cool! Thanks for these details!
10:25 , is this little endian structure? Where the most significant part of the binary number is stored on the right.
Wonderful explanation. I am a beginner kindly help me with this problem. How can a simple program be written that dynamically calculates the water volume used in a tank. Given a cubical container of breadth=5, length=10 and height =20. If the tank is filled with water to an appropriate height, I know the volume of water is volume of water = volume of tank minus volume of empty space. Now, how do is the amount of water used calculated if the volume of water keeps being removed downwards after some time?
Great question Winston!
With Arduino, any code in the loop() function gets repeated over and over again, as long as you have your Arduino plugged in.
Assuming you have a sensor that can report the relative amount of water in your tank, like an eTape (www.adafruit.com/product/464), then you can just read from the sensor and calculate the new volume every time through the loop.
So inside loop, you might do something like:
- read value from water sensor --> eTapeReading = analogRead(eTapePin)
- convert eTape reading to height --> You'd have to look at the data sheet for a conversion to apply (or google)
- calculate volume V=πr2h ---> volume = PI * r * 2 * waterHeight
- display new volume --> Serial.println(volume)
Hope this helps some!
I thought TTL was Time To Live. Must have miss remembered it from my college days. Might want to check your arrow it is pointing to MSB not LSB again. I can't watch these videos without at least picking up one new thing every time. Another great video.
Thanks a ton for watching! We should have corrected that arrow position in this one.
clear and understandable. Great Video!
Great video
Thanks Adam!
Great video, thanks.
Great help. Thank you.😊🙌
You’re welcome! Thanks so much for watching!
Thank you
You're welcome! Thanks so much for watching!
please begin the serial communication
We'll make sure to send the Start Bit ;)
Nice video thanks :)
Glad you liked it! Thanks a ton for watching!
Nice!
Thanks!
you really sound like the new boston
It's pretty close!
you sound like stat quest
Thanks! I hope you found it helpful!
You’re one of the best explainers I’ve ever seen on TH-cam. Like this is Khan Academy level stuff. Nice job.