Does D2 in usb type c part have to be Schottky diode but it does not handle a high switching or have anyorther reason.

I loved both the LiIon/USB as well as the Solar charger series. From the looks of the board, it seems like you're generating a 5V rail using a boost converter first, then powering the ESP32 using a linear voltage regulator. The use-case I’m building for doesn’t need a 5V rail. However, like most projects that are running on solar and battery only, I’d like it to run as energy efficient as possible. I feel that another design that combines Solar, battery power, USB-C charging and an ESP32 on a 3.3V-only rail (perhaps using a buck-boost converter) would be a great addition to your Patreon Library. Thank you for your great content!

Nice Video!! I want use DMA function for fast playing images and fonts. How to handle TFT_eSPI ?

I'm doing my ESP32 development with PlatformIO so it was helpful to see the generated code that I can replicate to bring the IoT stuff into my project. Thanks!

Don't p-channel mosfets flow from source into drain? wouldn't it be better to flip source and drain and add a diode?

Great thorough video! One of the challenges working with Arduino IoT Cloud is they constantly update the UI so all the tutorials get out dated quickly, hopefully the platform's UI stays the same for a bit.

I gave you your firsst and only thumb down but i subscribed

Great video. I am however math illiterate and would love it if you could do a run through of how to do the R2 calculation. Sorry if it is basic but I've forgotten how one does sums with brackets in them.

I'd like my water heater to work only on solar power without using any grid power. The existing solutions expensive and do not do what I need. If anyone knows one let me know. The idea is to make AC using H brigge using 4 mosfet transistors. I mean we take 6 panels 36V in series which give 216V DC. Using the H bridge we make square AC which is 216V AC. Then I'd like to have ESP32 controlling 2 AC sources 216V AC from H Bridge and the 240V AC from the grid. I wish 99% of the time to use AC from H Bridge as even on a cloudy day in the whole day it should keep up with heating the water. For the emergency case if I need hot water I'd like to be able to activate grid power to heater but generally speaking I hope this won't be happening very often. So in my design I will have 2 schemas as in you image at 10:20 kzfaq.info/get/bejne/qr2mdMqFycmqqKc.htmlsi=jicIm5SMJO4SXBGx&t=620 and HOT_OUT will be connected from both schemas and directed to the heater. What I really afraid and do not wanna to happen is that AC from grid goes to solar panels somehow. I know DC is more dangerous than AC, but I'd like to limit bad things to happen so that 240V AC won't get to the panels. Let's name schema 1 which works for square AC from H Bridge, and schema 2 which works from grid. I'm thinking the TRIAC2 input from ESP32 to connect to a mosfet gate and drain of that mosfet connect to the first pin of optocoupler in the first schema, and source to ground. That way I add a protection to shorten the solar panels triac control to the ground that it won't be active once I actiavte the grid. Will this be safe enough or it requires any other protection? I think it should be enough. Panels will be grounded so even if AC from grid somehow leaks to the panels the RCBO will should trip the curcuit. Any mistakes in my approach? Any improvments can be done? I see a potential issue for the cloudy day the calculated resistors should have different values depending on the AC voltage and in my case it can be anything from 0-216V AC.

HI, interesting video. I am trying to make (or find) a user_setup file for ESP32-S3 Devkit wroom1 with an ILI9486 display, no tough,.The internet is quite confusing on this matter, so if you could advise if I should be able to find this, or/how to create my own user setup file. Is it correct that the numbers behind mosi, miso, sck are the devkit pin numbers, or GPIO numbers (it looks as they are the same on esp32 devkit, but not on esp32-S3 dvekit)

Hello can I enter MAC adres of another esp32 device and connect to it through bluetooth serial. I need two esp32 or one esp32 and one measuring device to be connected with bluetooth serial

Strapping pins are advisable to use the Push button and LED??

Thanks a lot, this was really helpful!

what is the p channel mosfet used here?

So this would allow us to use a esp32 just like we would a hc-05 ?

7:41

I'm doing a WROVER board right now and changing to a USB Type C connector so this is incredibly valuable information, thanks! I'll take a look at your other related videos.

thanks for this actually you have done a great job i prefer messaging you privately please can i have you emai

Great videos man, juat curious why you use one mosfet to control another instead of just using an nchanel mosfet and the high signal to open it

Do you have tutorial on that & operator and bit shifting? I don't understand the part where you define Dark_Red color. Please make another tutorial on this part.

Any thoughts what would be involved in writing an *ESP32* application, that takes data from the uart, and passes it wirelessly either via bluetooth (SPP) or via Wifi? For Wifi, I imagine the ESP32 could act as a web server (TCP) and display the RS232 data, but maybe there's a UDP way it could send data to a PC on the same network? I imagine, if the receiving application (mobile or PC) is written in the flutter framework, it could display the RS232 data with style!

Great series. I learned a lot from these videos. Already singed up for this channel and thumbs up. I would like to see a little bit more about ULP Coprocessor. Thanks

The video was well explained. However, I have a question. If we have uploaded our code and no longer need the USB connection to the computer, and at some point our device resets (either intentionally or unintentionally), IO2 has a low value, causing the ESP32 to enter boot mode, which we do not want. How can we resolve this issue?

Great walkthrough of the process as always Great project, and interesting as always Thanks for sharing your experiences with all of us 🙂

Get out of the ☁️, use local control lile Home Assistant + Esphome.

Great video mate thank you. One thing I failed to grasp is how to work out +RP and RCL+ resistor values needed for N Channel?🤯 I've designed a small circuit with 2x IRFP260N mosfet in parallel, I'll be operating the gate with arbitrary frequency generator to allow complete control of pulse frequency to experiment with electrolysis liberating gasses from water. Are there formulas for both resistor applications? I'm no electronic engineer but keen to learn what I need to know. Cheers mate 👍

Thank you so much for the great content.

Quality content as usual... Should'nt the AGND and DGND be separated ?

Thank you Sir😊 LM317 is a linear voltage regulator. It has the advantages of low output noise and easy configuration.

Hi, I was looking for a method to drive a high current (1.5A) using a microcontroller and fortunately found this video. I still don't quite understand how transistor circuits work, for example if we lower the DAC output voltage which changes the current, the voltage on the sense resistor and load will go down but Vcc remains constant. I thought that many transistors have a fixed voltage drop between terminals but here it is variable, to act as a variable resistor? I hardly know where to begin to find the components I will need to make this circuit to my specifications.

R11 resistor provides 11mA given there is 0 voltage drop through the LED and the MOSFET. I am either missing something or there is no way you are getting more than 10mA through that LED. It's probably more like 6-8mA.

Thank you for sharing detailed explanation which is useful for DIY project, designing and debugging other electronic circuits.

Brilliant, been looking all over for help on adding USB programming like the dev boards have.

I want it!!!

Спасибо

From Barranquilla, Colombia. Congratulations, good and clear explain. Continue with all modules. Excuse me, I purpose an explain of IPM modules applied on inverter air conditioner. Differents models and one demostration to construct a test module bank for PCB in inverter systems. Thanks and excuse me sir.

Truly a masterpiece of a tutorial! Thank you for that! :D

`what exactly is the use of ADC in this ? Will it convert my temperature signal in to digital form ? But we need our signal in Analog form only Please clarify.

Great tutorials. would the esp32 firebeetle be better to use for portable iot project using a battery? Could you do one using an external interrupt please

I hope you're doing well. As a developer interested in ESP32-related projects, I'm seeking guidance on how to program the ESP32 WROOM 32D using an ST-Link V2. Could you provide some insights into this matter? I would appreciate it if you could direct me to useful resources, relevant instructions, or any tips that could assist me along this path. Thank you very much,

I've created a phone app that connects to a Bluetooth LE ESP32-S3 and power sensor. I'm using it to remotely monitor the voltage of my car battery via BLE connection. The ESP32-S3 and sensor are powered by the 12V car battery via an IC voltage regulator. I'd like to minimize the parasitic drain on the battery whenever I'm not monitoring the voltage (which would likely be for another 24 hours). Since the Bluetooth radio is turned off in both Light Sleep Mode and Deep Sleep Mode, I'm suspecting the only option I have is to set the respective sleep mode on a Timer. That would mean that whenever I scan for the ESP32-S3, I'd have to wait for the timing cycle in which the Bluetooth radio is turned on. Am I understanding this correctly? For this application, is there any way for me to remotely turn on the Bluetooth radio so that I could read the battery voltage for say 15 seconds and then return to sleep mode for the next 24 hours?

A very good explaination. Finally I'm clear with pull up and pull down resistor, thankyou sir.

No need for ESD diodes?(TVS)

I have a video controller for my computer that,externally,looks like an XBox controller. During the game,(Halo CE for PC), when I press the button to start the elevator,the switch often times bounces and I have to hit the button a couple times until it settles and the elevator moves. Im thinking about using a ceramic 0.1 microF cap in line of the feed to increase the time on duration of the connection.Sound good?

Thank you. It was precise and helpful.

can i know the ic u used for the circuit?

Great video. What power supply or instrument did you use to do the digitized current capture that you showed at the end of the video?

The main reason you use a esp 32 or 8266 is for connectivity ...and to my knowledge unfortunately you cant have the radio on and go to sleep , and you cant wakeup from receiving a bluetooth signal or wifi packet .... The esp is nice but its useless if you need to activate the radio and your on battery .... If you have any idea how to sleep and wakeup on receiving a bluetooth or wifi packet plz address it in the second video

Thanks for posting, love the vid

What a great explanation! Thanks for sharing!