Arduino Tutorial 59: How To Build a Portable Distance Detector With the Ultrasonic Sensor

[@haavishbonala10]

I Thermometer and A Distance Detector Together in 1 Project and it worked !!! . I showed it to the class and everyone liked it. Thank you 😊.

[@_clementpeter]

This is obviously the best source of learning all about the arduino hardware and also the programming language

[@BilboBaggin]

Agree I did not know anything about programming, I am so great full I came across Paul's tutorials.

[@alexandrubitlan6836]

@@BilboBaggin do you think there is anyone who buys this stuff from amazon and doesn't know how to use it?

[@954roof]

@@alexandrubitlan6836 I did with the intention of learning how to use it through KZbin, found Paul and I’m extremely grateful for his videos. I’m assuming if you knew how to use it you wouldn’t be here.. am I right?

[@SarkarMotion]

Guys show this man a bit more love. Over 900 views and only 40 likes for this amazing content? C'mon guys, this legend of a man is serving up our tech lust through some of the darkest times, and all we need to do is turn the upward thumb to blue. It's not that hard, is it?

[@_clementpeter]

I think what we can do is to go popular forums like quora ,reddit ,then answer related arduino question and recommend him in the process so that people looking for arduino resources can come visit his KZbin channel thereby growing the channel in the process.

[@MJCPeters]

AGREE

[@geraldinecommowick]

@@_clementpeter I do recommend him on Amazon where people buy the products but don't know how to use them. It's a no-brainer really

[@charlielowell4077]

I've been in Arduino groups on FB and online forums and I can't count the number of times I've recommended his tutorials. I'm usually answering a post like, "Hi, I just bought this Arduino and I want to build a complete home automation setup with ... blah, blah, blah... but I know nothing about coding. Can someone show me how to do it?" I always tell them that they need to start at the very beginning and learn the basics and once they've done that, they'll know how to design, build and code projects. This is the best resource for that, by far.

[@pointer333]

100%

[@axelthieser4712]

Did it on my own. Used a bigger breadboard and the Power Supply Module incl. 9V Battery. Thanks for the tutorial

[@RavensHammer00]

I did it, Paul! And on my own, I used a larger breadboard, the Nano, but used the power supply module and a 9v battery for portability. Thanks for everything!

[@tanishbhongade]

This man deserves various noble awards. C'mon man he is spreading such a good education in free. It is our duty to help him and motivate him by watching his videos.

[@giliandroengify]

Dear all.... Paul is making us a huge favor, it's polite at minimum to type a thumbs up for him and his channel! I've been learning a lot not only about arduino codes but math and improving my english skills as well. As a previous buddy wrote, it's lack of gratitude do not revert this most excellent, epic, new and improved tutorials! BOOOOOMMMM.... GET IT UP.... SHAKA LAKA.... BOOOOOOM!!!

[@CarolinaDGF]

I had already made my project mobile, and it was done in the same way as shown in this lesson. The difference was that I used a larger breadboard for construction, so it was easier to wire everything up. The fact that you are such a great teacher is what made it possible for me to do this on my own!

[@paulmcwhorter]

Great job!

[@alexm.4720]

Hey Paul, thanks for this amazing Arduino Series. Since i had this build working since lesson 53, i unhooked everything and did the assignment but to make it a little harder i decided to also add the DHT11 sensor and 2 buttons. I used the buttons to Toggle between the Ultrasonic sensor and the DHT11 sensor and displayed distance in ft and cm or temp and humidity to the LCD. Its funny how you were kind of struggling to fit everything on the breadboard and even considered using the monster breadboard when here, i was able to fit the elegoo power supply, the nano, the ultrasonic sensor, the DHT11 sensor, the potentiometer, the 2 buttons and the LCD all neatly and organized in the same size breadboard as yours and even had room to spare. Thanks to your teachings and the assignments you give us i have gotten really good at building neat and organized circuits. I really enjoyed doing this project and i am really excited to see what we will be learning next. Thank you!

[@pointer333]

haha! I also added the DHT and made the whole thing after 53! I used the temp reading as a factor in speed of sound to make the distance measurement more accurate in various climates. The ultrasonic sensor's doc says it reads to 4 meters accurately, so I set the program to give me climate info when reading over 4m, then shows distance in mm and inches when you're within 4m.

[@KoewachtDynamics]

I did it on my own. I just love your tutorials especially the fact that your lessons include homework so that we have to think on our own and actually learn something. I hope you never change your method. Grt from The Netherlands

[@adirajchalotra]

I did it on my own under 30 minutes! Thank you Paul for making these videos! Everyday, I’m becoming more of an engineer! I used a 9V battery to power this thing and it worked like a charm

[@mrktm65sx]

I'm pleased to report I completed this exercise on my own and it worked correctly the first time! I used a large protoboard, Nano, 9V battery, and the proto power supply that came in the Elegoo kit. I could never have done this without all of your wonderful tutorials. Thanks Paul!

[@cbrombaugh]

I did the homework on my own, but used a lot of cutting and pasting from earlier assignments to set up the sensor and display. My Nano has not arrived yet but I put the sensor on a mini breadboard and got everything connected. Fortunately my display was still installed, so I saved a lot of time wiring it up. Keep up your most excellent courseware development for your followers.

[@Allottedaaron]

The lessons to this point had given me quite a lot of confidence so I added some LEDS for Green Yellow and Red set for All Clear, hazard ahead and Hazard directly in front. I am already seeing the possibilities with adding a motor that slows and speeds up and then stops and reverses when a hazard is directly in front.

[@ShinesMonkey1]

Got it done, played with it; made a distance , temp, or humidity reading , depending on what you ask for. Had to use double breadboard to fit the humidity/temp sensor.

[@gilnasty82]

GOT IT!!!! Felt so good to get this one on my own!! At first it kept reading 0.00, but after finding a random bit of code immediately after reading the echoPin, it worked perfectly!! Paul is absolutely the best source of Arduino tutorials! I'd even say he's at least one of the best for information period!! Best teacher I've ever had!! Thanks Paul!!

[@paulmcwhorter]

Fantastic!

[@doverivermedia3937]

Boom ! success, and not a cheap lawn chair in sight. It's very satisfying to create an untethered device combining sensors & displays. The application of maths (my worst subject at school) in a real world project is soooo refreshing. On to the next !

[@josephlennox9310]

You guys really crack me up with your ancient measuring system. Life is so much easier in metres. Thanks Paul, due to your efforts in previous tutorials I got this one.

[@captainprototype187]

yes, it's cool to see a repeat of several lessons in one project.

[@thomasking2592]

Did this project on my own with great success. This has been a great video series. Feeling like we have at least 95% of the foundational knowledge required to build a roving toy or robot. Thank you for the time, care, and effort you pour into these informative tutorials.

[@Hino_55]

Did this first before watching you build, Sir. Didn't get it to work the first time... because i forgot to set the pinModes of the trigPin and echoPin! After that, it was all good. Hmm, i just figured that by default, the arduino is only printing up to 2 decimal places. (whether we are printing on the serial monitor or on the lcd) The remedy is that we can add another parameter as such: Serial.println(distanceToTarget,4); or lcd.print(distancetoTarget,4); This way, we can print up to a precision of 4 decimal places. We can put 5,6,7, etc. in there to add more decimal places. Thank you for this lesson Sir Paul. The production is highly appreciated!

[@opalprestonshirley1700]

There are times you need the patience of Jobe when wiring up these circuits. This was a fun project, a little frustrating on good wiring but with your trusty DMM the problems were easy to track down. Looking forward to the next project. Have a great week.

[@lordstelanthin]

I didn't follow along since I already had it working and going mobile as part of the homework. But I did watch the video to catch any bits of wisdom I could from you.

[@travisrichardson5366]

BOOM!!! Got it all put together on my brand new larger breadboard (literally arrived today) all by my onesy, including coding. Thanks Paul. This was an awesome project.

[@MicroXel]

This man deserves a medal,the best teacher in the planet

[@erikburman530]

Did it! Made a portable unit. Pretty much arrived at the same solution that you did. Really fun to run around the house measuring things. On to the push button.....

[@gilnasty82]

Since doing this lesson, I've finally got my LCD with an I2C board working. So, it's gotten even more wires out of the way!! Loving it!!😁👍

[@ellerycadel]

I was able to do this one on my own but I like how you think out loud to show everyone your thought process!! Very well done!!

[@pokerface68]

I did manage to do this one on my own, and I used the loopy wires but still got the proper results. I will agree it does not look as neat as yours but I do think it was easier to make the connections. A very satisfying project, thank you so much!

[@oleksandr_honcharov]

Hi Paul! I did the homework, but instead of LCD display I used a 7 segment 4 digit display. Thank you for the tutorial, I appreciate your work, please keep doing them :)

[@lawrencex5745]

Loved the intensity of this project, I really enjoyed the attention to detail needed to do this project properly. Absolutely Awesome Paul. 😊

[@MJCPeters]

I had this one together as homework, except for the echo and trigger which were competing for pins. Once I saw which pins you selected for those I was ready to go again. I am so glad no one saw this old man running around the house with a yardstick in one hand and this weird device in the other. I was measuring everything I could find.

[@ChandanKumar-vh7po]

I love the way, you present everything. While making a project , what kind of error can come across no body shows as neatly as you do. Thanks a lot for spreading your knowledge. and yeah the way you speak Boom.......! is so loving.

[@SundayZafi]

Hello my best teacher & Engr. Paul . I understand that these sets of tutorials , I mean the 1st & 2nd sets of Arduino tutorials were made many years back but they still greatly impacted on me , a recent discoverer of your channels as though they were made yesterday . In fact these lessons are going to actively live on & greatly impact on people as long as KZbin continue to exist . Your approach to the presentations , your methodology is excellently exceptional & easy to assimilate. Please don't delete anything from them , leave them as they are on KZbin . You are more than a hero , keep up the good work . The Nigerian .

[@paulmcwhorter]

Thank you for the kind words. God bless.

[@SundayZafi]

Amen !

[@handofash]

Did it on my own with a external power supply. I'm glad you addressed the noise issue.

[@tiberiumihaescu7348]

As I advance through the lessons and see that we're close to the end, I get nostalgic. I had a great time on your channel so far. In time, I discovered there's more to it than just Arduino, and I also discovered your other channels. Although as a doctor I will probably use what I learned here only as a hobby, I see you as a role model. Here, I learned more than making LEDs blink. I refined my way of thinking and discovered new and interesting ways of living my life. For that I'll be forever grateful!

[@paulmcwhorter]

Thanks for the kind words. I am really excited about the Jetson Nano series. There is some really cool stuff to learn there, and hope you will check that out when you finish the arduino lessons

[@tiberiumihaescu7348]

@@paulmcwhorter Thanks for the reply! I will definitely do - I have the feeling that those lessons will be my boy-to-man transition :D

[@TheKverbeeck]

Best mentor ever for every engineer.

[@wallymurray620]

This was a fun one. I enjoyed using the LCD before so right after lesson 53 I got busy. Was able to fit my Nano, LCD with potentiometers, ultrasonic sensor and the power supply on one breadboard with the battery on the back held on with an elastic. Coding wasn’t a real issue, just took what we learn from earlier LCD lessons and then after info learned from lesson 55 along with a few other additions got it reading in both inches and centimetres. As I said above, really enjoyed it.

[@gjd54321]

Fantastic lesson Paul. I did my homework on a bigger board, then watched your video and improved my wiring. I am learning from you to be incredible meticulous because else I need hours to trouble shoot.

[@thysdelport6782]

Just completed this and its work fine. Added a button to select a starting point. Great project once again. Thanks Paul - fantastic tutorials.

[@frang342]

Hey Paul, I did the homework on this one,so I could be ready for you. I had everything hooked up and running with the nano. It felt very rewarding to do this by myself and to see it doing what it was supposed to do. Thankyou very much I wouldn't have been able to do this without you and your tutorials along the way.

[@paulmcwhorter]

Nice work!

[@geraldinecommowick]

Haven't got my Nanno yet but working on it. Did this on my own, powered with a battery and got good results but improved them following your instructions! Thank you for all your work and attention to detail. Looking forward to re-visiting push button...

[@hughpatterson1480]

Yes I did it with you but I did build one on my own before working through the video. This was another great lesson. I am setting my sights to do all of your videos. As I have mentioned in previous posts, I studied this in school and teach STEM/STEAM classes. I got a huge amount of knowledge from your videos (not to say that the University didn't give me a strong foundation). I will do my best to make sure your videos and used in the schools I work with. Your videos should be seen by every student interested in this subject!

[@simontopley4771]

I had already built this before, when we first moved from LCD to the HC-sensor, i started to output straight to the LCD, it pleased me. TIP, use a pair of snipe nosed pliers to insert those wires, it's much easier, also, when they get bent it's simple to straighten them, using the inside clear faces of the pliers. I also use a tough set of stainless tweezers, I'm no where as nimble as 20 years ago, so let the tweezers do the work.

[@Jim-mn7yq]

Did the project on my own and had a lot of fun doing it. I used the Nano and the larger breadboard that Paul recommended. I also used the power supply from the kit. Initially I used a 9V battery to power it, but then found a wall-wart in the old electronic parts junk pile that works just fine. Looking forward to the rest of the course and then the new robotics course. Plenty of stuff to learn.

[@charlielowell4077]

This one wasn't too hard to figure out and I managed to cram everything together onto the breadboard. I've had a 3.7V Li-Po powered PS for a portable Raspberry Pi that I put together about 5-6 years ago, so portable power wasn't an issue. Thanks for another tremendous lesson!

[@paulmcwhorter]

Nice work!

[@richardyoung1025]

built it portable with the lcd display before the lesson was given. no flicker if the clear is just before the print statement. great lessons.

[@Японскийшагзашагом]

Thank you so much! Did it on my own, added a little bit of LEDs to celebrate it! Really proud of it and looking forward to future lessons!

[@daveharkin4731]

Paul, I really look forward to these videos, honestly they are the best tutorials on KZbin , please keep them coming.

[@justmc62]

Did the homework referencing previous lessons and modifying code to work with completed project . Really starting to feel some confidence after almost 60 lessons .. Thank you Paul for passing along all your skills . Onto lesson 60 😎

[@paulmcwhorter]

Excellent!

[@steveholt8991]

Yay, BOOM. Button added. I almost skipped this because it sounded so easy, but I learn something all the time!

[@Bambicarus]

I managed this one all by myself. I even managed to squeeze the whole setup on a standard 800 point board. One of the most useful components I have come across in my studies on electronics has been the 7805 voltage regulator. You can connect the whole thing up to a 9v battery and still have plenty room left for the rest of the components.

[@HyppyWayfarer]

FYI I had this setup back with lesson 56 or so.... Using the Nano and keeping the LCD display connected. Great series =)

[@damonbostrom6857]

Did it on my own with the Uno, no problem. I put the "Hello!" comment in the setup, so that boot up introduces the thing... pretty neat!

[@mikeallinson7169]

Because of the groundwork from your previous lessons I did it on lesson 55. Its helpful to have a big breadboard to leave/expand projects.

[@paulmcwhorter]

Great job!

[@keyboardlearning7552]

"Did anyone do this on their own?" YES, I DID. I used a larger breadboard, so my wiring is easier to follow, and I was expecting to add to the project with the homework, (which I know now is to add a 'ping button'). Many thanks for these great videos.

[@johnvandenberg2445]

Hi Paul ,yes I did it on my own and it works perfectly. The only thing I forgot to do initially was to include the Serial.begin statement ! But a little adjustment to the LCD as i used distance to target and then the results. I next set it up as a standalone . The one thing that is not working is the Nano I am using will not talk to the PC so I just used the Mega . I have a CRO and just love showing my wife and the Neighbours the collapsing waveform as you place something in range. Many thanks young man.

[@PauloLopesdosSantos]

I have done it on my own. I enjoyed a lot. After tutorials 48 and 53 it became easy.

[@paulmcwhorter]

Great job!

[@petergawthorne4660]

Hi Paul, Didn't manage it on my own but followed your lesson today and it worked great. Another fantastic Tutorial. Wish I had a teacher like you when I was in high School in the 1960's

[@mikoajnowacki2788]

Really enjoyed this project! I also added diods and buzzer to signalize how close the object is. Thank you Paul for your work and effort

[@sampachileshe1772]

Wow..!! Thank you, thank you. I mean, you've just opened me up to a solution I have been cracking my head over for quite some time now. That is, the potentiometer project to switch the LED on and off depending on the target voltage from the pot. Pls, continue the good works.

[@ronhill9800]

I done most on my own, using an I2C to a 20x4 lcd and set it to display Ping Travel Time in microseconds on the second pair of lines. Great tutorials, as you actually learn through mistakes.59 down....looking forward to more....

[@matthewcollins1858]

Present. I did it. I don't have a nano yet so I also used the motor power supply to make it portable so that I could practice using a separate power supply.

[@jasonvictor9542]

Yes sir did it on my own, i exchanged pin 11 and pin 12 with pin 2 and pin 3 on the nano so i could use pin 11 and 12 for the LCD i just changed the int values in the programming. I powered everything with a 9 volt battery, i will pick a power bank soon! Thanks again Paul!!!

[@paulmcwhorter]

Great 👍

[@scottfahey3701]

I used a 220 and 1k resistor instead of the potentiometer for the lcd builds. Keep the content coming!

[@richardalexander633]

Achieved this one myself. Sense of achievement is immense. Thanks for the great tutorials. Such fun.

[@melvinbullock5674]

I have been going through this series of videos and enjoying them all so far! Homework completed 👍

[@melvinbullock5674]

I used a 9V battery and the kits power rail

[@bobrayme9983]

My whole reason for getting into arduino is for digital screens. And up until this point I've followed along with the dot matrix screen ( think that's what it is, but the 2 line screen none the less. ) but today I finally worked out how to get my 1.77" TFT display going. A little off on formatting.. but I'm working on that. It can be read and updates with a flash.. but it works!! "Distance 27.45inche s" Lol cheers!! Thanks for all this info Mr. McWhorter! You're a bad ass!!

[@0Mr.Java0]

So I have taken a slight break from the lesson because I was waiting on some parts and I have been working on a project involving different modules that are not covered in your lessons. Let me tell you watching other videos on how to connect and program things is way harder to understand and there is much less explanation. They may tell you how to do it but they don't explain what's going on with the code in great detail like you do. I ordered a RTC module and I thought it was going to be a piece of cake. I came to the realization that I was in some kind of a bubble while learning with you and I had a lot to learn. Choosing the right library and then finding enough documentation on how to use the library was quite the challenge. A so I thought 15 min easy project turned into a frustrating day project. Basically what I learned was I have a lot to learn lol... Thanks for another great video!

[@thronabulax]

did it on my own with the bigger breadboard and flat wires. Nice to have the extra room. Used a Nano and breadboard power supply module connected to 9V battery. Kept everything in Metric.

[@lorisrobots]

I was able to do this one on my own. I used only one breadboard -- I 3D-printed a project tray which holds the Arduino (uno or nano) and a breadboard. I used an LCD with the I2C backpack that I got out of another kit. It is much easier to hook up (less connections needed). It is good to know how to connect the LCD without the I2C but now that I have that knowledge, I will use the LCD with the I2C. Great project and I am off to add a pushbutton to my build.

[@paulmcwhorter]

You are right. Even for kits that have i2c LCD, I dont mention it so people get experience wiring a complicated build. But yes as we get good at building, it is much simpler and better to just use I2C for those LCD panels

[@orndorff52]

Dangit, Paul!!! You were hyping up using the big bread board on this, so I used it... finished the assignment in 30min or so, code and all... crushed it!! I was so proud of how smooth it went, then came to this video and saw you managed to do the whole thing on a small board 😂😂

[@takiskard2414]

Boooom! excellent project. I thought I'll make my life a bit more difficult and experiment a bit, so I also purchased a 20x4 LCD screen with the I2C controller. Downloaded the LiquidCrystal_I2C library. Only 4 wires to connect to the LCD and it worked !!!! Thanks to you Mr. McWhorter.

[@iqbalarabian7425]

it was done right after the Tutorial 58, thanks to Mr. Paul, :)

[@stevenog]

Did it on my own. Used 2500 ms for delay which reduces blink and provides a more stable measurement.

[@ttb808]

I was able to do it on my own for HW. I was able to copy and paste from previous HWs, then critique the code to make it work. PS: In the Arduino box I bought, my LCD display board has an I2C chip soldered on. A few classes back I spent hours figuring out how to do that part on my own. (Just something to think about, a few of your viewers may have the same problem I had.)

[@gilnasty82]

I know it's been a year since your comment here, but I've recently started messing with an LCD with the I2C soldered on. What library did you use for this? I've tried a few different ones and ran into code issues when trying to upload the code.

[@kiranbs5057]

Hey Paul ....Started your tutorial series a month ago and i watched 2 lectures per day so here iam watching 59th tutorial and 10 more to go . Thanks Paul For this most useful educational series as I said earlier u made learning easy peasy , learnt so much and also had fun learning . U are a great teacher Love from INDIA

[@pointer333]

Same here, count-wise, AND I AM SAD.

[@jordanparker-ashe387]

I did it myself! Started from the bottom now we here... Wow... I think this has already been invented because I saw an ad in the most recent USLA magazine, but I'm an ocean rescue lifeguard and... you could feasibly harness this sensor depending on how accurate it is in water and how far it can go to look for submerged drowning victims... much faster than traditional methods like grid diving to find a body... potentially even within the golden two minutes if you can AI train out other underwater things like rocks or animals or live people... yeah!

[@dswilliams7543]

Nicely done, I made it all by myself,with very few issues, thanks for the great instruction, on to the next......

[@noelomeli1520]

Boom! I was able to complete the assignment before coming to watch this video! Thank you Mr. McWhorter!

[@metoliusdad]

I gotta stop watching the assignment before bed; I have restless dreams but the problem's solved in the morning! I got mine to work. I cut the wire mess down slightly by running the pwr/gnd wires under the LCD to the powerstrip it's laying over.

[@santiagoperaza967]

Very fun Project .... can't wait to use more advance Hardware. I hope you are having a nice day Mrs McWhorter.

[@MrBrotherchris65]

Thanks so much. I got my set up debugged and running and then watched the video for the coding part.

[@deepakgohil8366]

Lots of Love from India. Sir you great.

[@kevinmate3643]

Paul, Have binged through this series since I started tutorial 1 a couple months ago. It's been the best, most thorough beginner Arduino education I've followed. The homework assignments have been challenging and valuable to my development. As a technical instructor myself in a different field I want to say bravo, you know how to deliver your subjects well in a way that keeps students absorbing and retaining the information. That said I have some earnest constructive criticism regarding this tutorial. It's my opinion that time should be cut with such a thorough circuit building walk through. In previous lessons you've cut out portions of the projects that have already been explained. You've done more than enough of circuit building walk throughs that anyone taking the time to follow through your lessons should be able enough with a look at the pictoral diagrams. Again this is meant as constructive criticism. It felt good doing the homework on my own but the lengthy follow up lessened the validation. Keep em coming, favorite e-teacher I've ever had!

[@corneliuschamberlainmarcou6127]

I did it on my own, thanks Mr.Paul... you are one of the best.

[@stefanonicolini2090]

I did get it working on my own and managed to get it on the original breadboard as well. I also ended up wiring the LCD to different pins so that I could use wires that were a closer fit length wise.

[@reymattt6526]

Yay!!.I did the coding on my own and then watched your video.I felt a litte bit of confidence about my arduino skills and thank u so much mr.Paul for all the amazing lessons.

[@electronichome1153]

As the course progressed it became more and more interesting and motivating to do my homework. So I did it again and it works. Thank you Paul!

[@paulmcwhorter]

Great job!

[@opalprestonshirley1700]

Yep the addition of that little button is really nice you get a nice fixed reading no changes till you push the button again. Fun fun fun.

[@reece674]

I got it all hooked up and working prior to the video. Definitely not as neat as yours though because I am limited to only having access to the basic kit at this stage (stuck in a hotel for 2 weeks quarantine due to travelling interstate in Australia). I pretty well did everything else the same, apart from using the metric system instead lol. Even if I do get something working prior to the lesson, I always watch your videos all the way through as there is always something extra to learn or better ways of doing things that I either didnt know or hadnt thought of. Thanks again for another great lesson.

[@johntello8904]

I was able to do it all alone! I used two breadboards and a power supply module to power it all up!

[@mohsenr4434]

I did this project on my own and it worked just lovely. Thank you.

[@desmondkristian9033]

I already did the homework. Further, i add an active buzzer, so when the distance is under 7cm it will print on lcd "too close!!" with sound. it was really fun though!!

[@MSMEHYDRO]

Hi Paul finally made it through finals week! Back to Arduino! This lesson was nice and managed to do it before hand! Hope all is well and hope your healthy!!!

[@MSMEHYDRO]

And finally finally caught all up!!! Oh yeah!

[@ricardobjorkeheim775]

I mixed the display lesson and the sensor lesson, adapted it and it worked :)

[@_clementpeter]

I think what we can do is to go popular forums like quora ,reddit ,then answer related arduino question and recommend him in the process so that people looking for arduino resources can come visit his KZbin channel thereby growing the channel in the process. There are so many people looking for such structred content to learn Arduino to build their skills and create their own project....

[@thomasmaxwell4396]

Hi Paul - I was successful on my own, though I did cut and splice code from other lessons and modified the pin connections. I got my 2x nanos yesterday, but experienced some problems getting them working - until I found online that I needed to select ATmega328P (Old Bootloader) - wasted 1 hr getting that info.

[@karim111]

Did it on my own, with the nice BIG breadboard and Arduino Nano!

[@samilnaml7636]

I’ve already perfectly done the homework Paul! Thank you for great knowledge you’ve taught me through that amazing series!

[@muhammaddanial50]

Amazing lesson and your patience has to be appreciated