ESP32 #59: ESP32 MOSFET Tutorial (as a Switch)
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- Опубліковано 13 лип 2024
- Using the #ESP32 with an MOSFET as a switch.
ESP32 Example code:
github.com/pcbreflux/espressi...
MOSFET Thermal considerations see also:
www.aosmd.com/res/application_...
Development Environment
(vulnerabilities in the Wi-Fi Protected Access II protocol (WPA2), also known as KRACK (Key Reinstallation Attack))
see also www.espressif.com/en/media_ov...
ubuntu 17.10 64 Bit (www.ubuntu.com/) (for video-capture and -editing switch back from wayland to unity :( )
Eclipse Oxygen (www.eclipse.org/)
esp-idf commit 2c95a77cf93781f296883d5dbafcdc18e4389656 Tue Oct 24 10:02:51 2017 +0800 (github.com/espressif/esp-idf)
xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-61-gab8375a) 5.2.0 (dl.espressif.com/dl/xtensa-es...)
Arduino 1.8.4 (www.arduino.cc/)
arduino-esp32 commit 07685903321a1968174f1a5027be88adb77b8817 Wed Oct 25 12:11:01 2017 +0200 (github.com/espressif/arduino-...) - Наука та технологія
You really helped solve my problem. I had the load on the drain of an N channel MOSFET and it wasn't working. I moved the MOSFET between the load and ground and it works now. Thank you!
Thank you very much! Very informative video without any unnecessary "lyrics". Thank you!
Thanks, think 20min are the limit to follow for most viewers, so have left out some additional footage like measuring all voltages and currents on the bench.
Great Thank you for this video, very helpful. Love it.
Good animations!
Great video!
great video!
subscribed commented and thumbed up.
Thanks
Great video! I'm want to separately PWM-control five 1.5W@12V LEDs. I decided to take a FPQ30N06L, but I'm not sure about the current limiting resistor I have to take to protect the ESP32. Could you give me the value?
Can this method also be used to interpret a variable gpio voltage from 0-3.3v to get a varying output voltage( or current, however you want to look at it) from 0-12vdc? Think of using for 2-3 amp solenoid valves
Thanks for the clear explanation. You're obviously very knowledgeable. Just one question from a MOSFET newbie: you first show on the left a circuit with one N-channel MOSFET which seems to do exactly what I'd like it to do. Then you go on building more and more complex circuits using both an N-channel and P-channel MOSFET, adding resistors and a Zener diode. Why would one want to do this? Are N-channel MOSFETs more limited from a max ratings point of view or is there a great advantage using the P-channel setup? Thanks!
You can use it for a load which is connected to ground.
Great video as always. In the case of a 12V N-Channel example, what MOSFET should be used? Thanks
I would recommend Alpha Omega D424G.
Max 20V. Rds(on) @gs 2.5V only 6.3mOhm !!!
For N or P Channel mosfets often I use AO3400 amd AO34001, they start with 2.5V and have a very low RDS(on), etc. maybe a better choice for you.
What kind of zehner diodes have you received?
This was in my last received order (around 2000pcs):
BZT52C11V SOD-123
BZT52C6V8 SOD-123
BZT52C10V SOD-123
BZT52C9V1 SOD-123
MM3Z6V8 sod-323
MM3Z11V sod-323
MM3Z3V3 sod-323
MM3Z5V1 sod-323
MM3Z9V1 sod-323
MM3Z10V sod-323
MM3Z11V sod-323
Thanks for this tutorial, excellent explanation. I have an ESP32 microcontroller and needed to control high voltage motor using a MOSFET as a relay. Wanted to know if a MOSFET could be controlled at 3.3 volts from GPIO pin to turn OFF or ON a 12 volt DC motor. So from my understanding, I can directly connecting the GPIO pin to the mosfet without adding any resistor needed?
Sure you can. I would use a 1k Resistor anyway to protect esp32 from over current.
Awesome tutorial. IF I wanted to switch on a battery device that only switch on when a contact opened that then powered an Arduino Pro mini to send a message before it switched off to save battery use would Mosfets be the way to go?
I am a little MOSFET affine so maybe a am biased. If you not already watched maybe this helps Latch ua-cam.com/video/nOGPfMO0PJY/v-deo.html and battery monitor ua-cam.com/video/-j04T_uVu8U/v-deo.html but see also the links in the description of the videos especial the link th Kevin Darrah.
Love
I need use ESP32 for control of powered bobbin (24v-1A) what is transistor of the best for this ? I need only P-channel Mosfet without any addition , right ?
What kind of Mosfet I can Use to operate with esp32. To control the 24v dc motor?
i amtryingfor OTA update for quite a while and no success yet.
i am getting error-
Sending invitation to 192.168.1.240 04:48:43
[ERROR]: No response from device 04:48:43
[ERROR]: No response from device
any help?
How to calculate the resistors, please tell me? Thank you
why focusing on P-CH mosfets? are not N-CH much more efficient, lower Rds??
Really bugged me, but it seems you've got your N and P MOSFET symbols mixed up in the video - at 4:33 all seems okay, but when you start to talk about the P-channel MOSFET at 4:52, the symbol for the P-channel MOSFET changes to an N-channel one! Is that just me? Looks like you've mixed up the P/N symbols after that too?
Hi, at 4:33 its about N-Channel an the low side (load to positive rail) and at 4:52 about N-Channel on the high side (load to negative rail) and why this is not working with a 3.3V GPIO Pin and a 3.3V rail. At ~6:13 is the switch to P-Channel and why you can use it on the hi side with a 3.3V GPIO Pin and a 3.3V rail. Some times you prefer a load not permanent connected to the positive rail, but on the other hand most N MOSFETs from the same type have lower Rdson (Ultra Low On-Resistance).
Any chance of a tutorial where some things we would like to learn can be incorporated? :-D
I would love (under Arduino IDE) make use of the both cores, to do different tasks.
Core 0 would have to deal with interrupts and according ISR's and timecapture (in micros()), and the second core 1 would have to deal with I2C LCD output and a neopixelstrip to make things visual. Core 0 should pass value in microseconds to core 1 to deal with. And based on this value, turn a neopixel on in a different color.
I know it is a whole bunch of questions, and I even do not know if i could fit in one tutorial, but i would be great to see the real value of the ESP32 and the arduino IDE together in one setup as a project.
Hi, think mainly all of your needs are explained in the new video from Andreas Spies: ua-cam.com/video/k_D_Qu0cgu8/v-deo.html
Yes indeed, awesome tutorial video, so much to learn from
Question : the mentioned esp32_rtos_sdk is that different from the Arduino ESP32 toolchain?
Hi, the RTOS is part of the ESP32 arduino sdk. So it's a addon to all arduino functions and classes if used for the esp32.
The trick with this video is running it at 1.5times speed.
My favorite ua-cam.com/video/W_Ut2OUw9uw/v-deo.html. from pcbreflux .
Instant CLASSIC!
your english is not the yellow from the egg (Kleiner spaß ;) Danke für das Video)