Tutorial: How to Design Your Own Custom Microcontroller Board

[@PredictableDesigns]

Get your free design pack for this tutorial that includes the design files, block diagram, datasheets, and PDF tutorial: predictabledesigns.com/tutorial-design-pack Prevent mistakes by downloading your FREE DESIGN REVIEW CHECKLISTS for the schematic circuit, PCB layout, and enclosure 3D model design: predictabledesigns.com/design-review-checklists-youtube/ And get your other free guides: Ultimate Guide - How to Develop and Prototype a New Electronic Hardware Product in 2023: predictabledesigns.com/guide From Prototype to Production with the ESP32: predictabledesigns.com/esp32 From Arduino Prototype to Mass Production: predictabledesigns.com/from-arduino-youtube/ From Raspberry Pi Prototype to Mass Production: predictabledesigns.com/rpi Want my personal help on your project? If so, check out my Hardware Academy program: predictabledesigns.com/Academy

[@Brandon-youtube]

One recommendation for both author and viewers: reading the data sheet is a huge skill. This is how you can get a better idea if the mcu is proper for your project, if you have overlooked pin connections you need to make (enables, resets, etc.) and so on. Very important part of the design

[@sergioescalona62]

There are many factors in studying electronics. One resource I found which succeeds in merging these is the Gregs Electro Blog (google it if you're interested) definately the most useful info i've seen. look at this super website.

[@rmt3589]

Greg's Electro Blog. I'll have to look it up.

[@r_mclovin]

I don't understand everything yet, but I wanted to say now that it's AMAZING that an experienced professional like you offers his knowledge online so that noobs like me can learn what's what. THANK YOU!! 🙏🏼

[@fishionboy9911]

World is better cause people like you

[@ADPTraining]

Thanks to John for this great engineering video. This stuff is worth money and very much needed. I subscribe to his website and have learnt a lot over the years on propped electronic design flow, thanks again.

[@PredictableDesigns]

Thank you so much for this comment, and I'm thrilled to hear that my content has been so helpful!

[@ishworirish]

Thank you. I was searching for this tutorial for long long time.

[@evanr.lowetechgamingandcoo1410]

I'm going to watch this video five times and research everything I don't understand. Thanks.

[@PredictableDesigns]

Awesome, Evan! Thanks for the comment.

[@MrScoopoo10]

thats how u learn

[@KM-mc7ve]

very nice tutorial THank you so much

[@SerialNumber-jm1sg]

*57. Thank you very much! Very interesting and detailed! Best regards and good luck!

[@PredictableDesigns]

Thank you! Cheers!

[@kaustavsengupta8757]

I m glad that I find your video. Really enjoyed it watching. Anyway sir can you do short descriptive series on IAR workbench cause I can't able to find even single good tutorial on it. Keep up the good work man

[@RixtronixLAB]

Nice video, thanks :)

[@PredictableDesigns]

Thank you!

[@omidebrahimi2186]

Thank you for the information, very useful.

[@demographicreplacement539]

You have all these different I2C and SPI and UART peripherals but they aren't discussed in this video, where can i see you designing with them?

[@DaNazmul]

STM Studio Upload Error: GDB CMD Failed. . Wrong version in compilation unit header (is 5 should be 2, 3, or 4) I am using stm studio1.15. . any help in this regards? Your videos are helpful :)

[@rasselvam]

Thank you soooooo much for this video

[@Zhenguusa]

Thank you it is very helpful.

[@anuraggupta7969]

Thanks for the tutorial and for sharing your valuable knowledge. why is there a capacitor before and after the voltage regulator?

[@PredictableDesigns]

The caps hold charge and supply current for fast transients so the input and output stay constant until the regulator can respond. Without output cap most regs will oscillate due to unstable feedback loop.

[@anuraggupta7969]

@@PredictableDesigns Thank you for clearing my doubt, sir.

[@ajayrangishetti5515]

Sir ,I want to build a microcontroller board for my project which should have sensors like accelerometer, gyroscope sensor, camera and it should be battery powered, but I have only minimum knowledge, it should have GPS and bluetooth systems .how can I do it ,I have less knowledge.in the above video there are different connections for different blocks such as USART, I2C, SPI..etc.why is it like that? And how do you know where to use the resistors and capacitors, and their specific values

[@zaccomusic]

nice video hope you keep update :)

[@mariamelsebaie9091]

Can i do this in pcb?

[@PredictableDesigns]

Sorry, not sure what you mean? You can do this using any PCB design software.

[@bemnetadefrcis5135]

Your printed boards designs for the complexity of the customization of PCBs multilayer PCBs designs specially customizable MCUs and MPUs and PCB layout designs ?

[@kentharris7427]

I'm designing an HHO Generator and the number one problem is mixing the Potassium Hydroxide (PH) with the water. I want to build a container for the PH and have a stepper motor add the PH to the water. When the right mixture is reached the motor will stop adding the PH to the water. The way I figure it is you either measure the resistance of the water or the voltage in the water. Since you are starting with Distilled water there will be very little or no resistance or voltage in the water until you reach the required amount of PH in the water. Is there a Microcontroller that would measure resistance or voltage and be able to turn off the stepper motor once the right amount of PH is in the water? I would prefer measuring the voltage since this is a 12 volt system.

[@anaistv891]

I think that any microcontroller can do it. I advice you to use Arduino board because you can find easily how to do it in the web since it is open-source platform.

[@MadJDMTurboBoost]

Damn man, don't mean to be rude but you have a LOT to learn before you can make something like this. I mean the project seems simple enough but your lack of knowledge in electronics and chemistry make it an unlikely endeavour. First of all, Potassium Hydroxide is KOH not PH. Secondly, you can only measure resistance using a constant current/ constant voltage approach; it is not a quantity that can be directly observed alone - see ohm's law. Third, distilled water has relatively high resistivity, much more than tap water. The resistance measured will actually decrease as you add KOH. (KOH is literally used as an electrolyte in some batteries...) I don't know of any microcontrollers that run directly off of 12 V but that usually isn't a problem since you can step down the voltage using a buck (step-down) converter or a linear voltage regulator, or both. Even after you have created a PCB (or even a breadboard prototype) you still have to program the microcontroller which means learning either C, C++, or assembly. An arduino development board as Ferhat mentioned could work since it can take up to 12V input due to its onboard linear voltage regulator, and it is relatively easy to learn! Anyway, I hope you learn enough to accomplish this, like I said it isn't a very difficult project to make, but you seem to have lots to learn still! Good luck!

[@rmt3589]

I'm probably late, but hoping I can help. (My useless degree is in chemistry) Are you using phenolphthalein or a pH meter? With phenolphthalein, you need something to detect the color. If just a pH meter, I assume you can connect it to the microcontroller. If you're using a magnetic stir bar you can have an electromagnet under the beaker to stir it with, then cut power when the pH is at the desired result. I hope you were able to do this! I'm still trying to wrap myself around the electrical engineering bits.

[@rmt3589]

I meant pH indicator, not phenolphthalein. It's 2:44am, and I'm very tired. Phenolphthalein is a pH indicator, but I don't think it changes color significantly at any point in the basic range. Imma go sleep now.

[@ucontrolchannel5967]

Thanks for this precious video. Could you help me how to add component library and how can I expand library in dip trace. I am using STM32F042, MPU6050 accelerometer and SD card

[@dineshwasoo1978]

what is the SD card for?

[@lg-xt5pn]

i need one with about 8300 data pins can i do that

[@markday3145]

I sort of understand the capacitor "pulling" NRST to ground. But what charges it so that the pin is eventually close enough to logic high so that the MCU comes out of reset? Do you need a pull-up resistor to Vcc to charge the capacitor?

[@conorstewart2214]

I dont know maybe it pulls it high internally.

[@Brono25]

There is an internal pull-up resistor

[@SpeakEasy-s5p]

Cool !!!!!!!!

[@richyuh]

No need for the 10kOhm resistor?

[@lawharris9212]

Hey John, thanks for the video. By the way, do you know where I can get the schematic of the ISP header and micro-usb as shown in the video? I have tried to look on Google and SamacSys with the same ID, but I couldn't find them.

[@MASSKA]

he liked your comment but ignored lmao

[@ulianovalexander5778]

Thanks Lionel Messi.

[@simonndungu1196]

Lol

[@anujregmi4582]

hahaha

[@ADPTraining]

Ulianov, you're an a hole. You should be thanking Mr. Teele.

[@kakolelouch5261]

Hi! Excellent tutorial! I am a colleage student and want to learn microcontroller board / single board computer design! Currently I have only basic Electronics knowledge (such as capacitors, opAmp, mosfet, transistor). Would you please tell me what kind of knowledge I need for such kind of circit board design? Thank you very much !

[@conorstewart2214]

The best knowledge is how to read datasheets and look at reference designs.

[@TaiwoHY]

cool

[@mohamedfaroukbouklihacene819]

i can't find the regulator TLV70233DBVT!!

[@ERGU9]

yeah me too, I cant find any components

[@etg9080]

I wish you showed us the circuit diagram first before you jump into circuit connection in the software.