- Видео 11
- Просмотров 67 067
Refik Hadzialic
Добавлен 1 сен 2013
Step by step guideline how to set up your code for the ESP32 OTA Firmware update
Step by step guideline how to set up your code for the ESP32 OTA Firmware update To read the complete article go to www.lab4iot.com/2021/02/21/esp32-secure-firmware-update-over-the-air-ota/
Просмотров: 3 900
Видео
Secure over the air (OTA) firmware update on the ESP32
Просмотров 4 тыс.3 года назад
In this video, you can see the automatic firmware download and update on the ESP32. It downloads the firmware from an HTTPS web server. You can read the full article on www.lab4iot.com/2021/02/21/esp32-secure-firmware-update-over-the-air-ota/
Test setup for comparing the instrumentation amplifier TI INA128 with uCurrent Gold
Просмотров 1,7 тыс.4 года назад
In this video, I describe the test setup for the comparison of the INA128P instrumentation amplifier, used as a current probe, with the uCurrent Gold. The uCurrent Gold was used as the reference. The test load was the ESP32 but it could be any other IoT stacked up MCU. The signal is sampled using the Analog Discovery from Digilent. It is analyzed in their WaveForms software.
Bode plot of the TI INA128P
Просмотров 2664 года назад
This video shows the Bode plot (frequency and phase response) of the INA128P instrumental amplifier. It is connected to /- 9V power source, with 100 mV input sine wave, and has an amplification of 11 (20.72 dB). This analysis is for a current amplifier. A simple tool that should help the embedded engineer to see the current consumption of his IoT devices like ESP32, LoRa transmitters&receivers,...
Testing the energy harvesting circuit TI BQ25570 without solar panel
Просмотров 2,5 тыс.5 лет назад
This video is a tutorial on how I test the Texas Instruments BQ25570 energy harvesting chip. It is based on the board you can easily find online and order. My goal was to find the optimal input current and voltage to feed in the highest power into the circuit. In other words, my goal is to find the optimal solar panel. I test it with a programmable power supply instead of a solar panel. The bat...
Hardware guide/tutorial on how to connect the ESP32-WROOM-32 for programming
Просмотров 35 тыс.5 лет назад
This video is a tutorial on how to connect the ESP32-WROOM (ESP32-F) to the USB to UART/Serial port converter. After successfully connecting the ESP32-F to the CP2102, you will be able to program it in Arduino. For more details please visit www.lab4iot.com.
Programming the ESP32-WROOM-32 within Arduino
Просмотров 13 тыс.5 лет назад
This tutorial explains the most basic setup on how to program the ESP32-WROOM or ESP32-F. It is a guide on what to select in the Arduino programming options menu. Make sure port IO0 (I/O zero) is connected to GND. Then press the RST button. Then you can press the program button in Arduino to program/upload the code to the ESP32-F. Once the programming was successful, disconnect the port IO0 fro...
Detailed soldering and inspection of Espressif ESP32-WROOM
Просмотров 6 тыс.5 лет назад
This video represents how the Espressif ESP32-WROOM can be soldered manually, without a hot air station or reflow oven. More details can be found on www.lab4iot.com
Can you give programmer name
Can you confirm if BQ25570 starts to run at 600 mV or at 330 mV?
How to connect esp32 wroom 32d to the st link v2?
You save my mind to collapse, thanks for this, now i know that's possible to use a esp-01 serial converter in esp32...
may I please ask you: isn't it pointless to look at it with a magnification lens, if you haven't soldered the GND pads?
Well, no, the ground pads have nothing to do with inspecting the other solder joints.
Surprisingly enough, I wanted to give it a try without soldering the GND pads. It turns out that at ambient temperature, in stable environmental conditions, etc... it also works without soldering the GND pads. I do not consider it a reliable assembly, but seems to work. Wouldn't use it in production though
@@sysdevz If you read the datasheet you'll see the ground pads are optional. They do improve thermal characteristics if you use them.
Hello , may I ask you : no need to soldering the GND on bottom side , right?
what about the arduino ide side ?
Nice work bro. I have been having an issue to find Schematic( pinout ) to connect ESP32-S3 Wroom to MAX6675 Amplifier with K-type thermocouple. I find Schematic for ESP32 with K-type thermocouple and MAX6675 Amplifier is NOT working for ESP32-S3 Wroom. Do you have any information on this ? please let me know. Thank you for sharing your knowledge and expertise with us. Dobar poso Refiku samo nastavi
Thanks for your work. I have same esp32 but i want to program it with usb type-b , so how should my pin out would be
According to the datasheet, I believe the input current is limited to 100mA, and VIN must be < VSTOR < VBAT_OV. If VIN exceeds the specification, it will be "pulled to ground through a small resistance to stop further charging". Thanks for the practical demonstration. Also, your website is down when I tried to access it. Appreciate if u could bring it up. It'll be of great help to many. Thanks!
so if I put there 30 volts it will not kill it?
code/ link please..
Hi, i have same model, so how do you do for have a output signal, i charge the supercapacitor but i dont have signal in output
Hi Refik! I tryed the weblink but is not operative. Do you have another link? Greetings!
Your site is down, please fix that issue
If it doesnt work, hook GPIO 2 to Gnd.
Hello i am newbie, i bought the chip solder all part my input is 1.5v but there's no output can you help identify my problem it's for school project hoping you can give some guidance 🙇🙇
How do you set the output voltage? What pins give what output voltage? I read the TI schematic, but did not see it mentioned...though I am sure it was. Looking for anything over 2 volts out, with converter enabled.
Hello! Where have you find that PCB for the ESP32 ? thanks!
I think you can find it on ebay or aliexpress.
Would it be possible to provide the diagram of the PCB board?
Hi, thanks for this video. I can't able to program my ESP WROOM 32D. I have searched a lot of video about to do this, unfortunately no ones work. Can you help me? I tried various way (TTL cp2102, Arduino nano, Uno and Esp32 Dev Board)
have you been able to use it yet?
@@albertosansegundo6964 yes, I solve the problem and I created my own esp32 Dev board based on ch340g
can u send that breakout board schematic
This saved me alot of time. I just wanted to confirm a few things for my self. Now i have. Thanks to you. I'm looking forward to making a video about deep sleep on the esp 32 for my channel. This is cool
You did not solder the ground pad at the bottom.
It is not mandatory to solder the ground plate. Check the spec.
In fact you’re told not to
Why can't those small adapter board makers just sell a version with ESP32 already soldered? One has to solder an ESP32 anyway. There are development board with ESP32 already soldered, but they are too big and some do not have access to all pins.
Can I use it with a source having current input in the range of 10 microamp and open circuit voltage around 400 mV? What would be the header pin connections in that case?
I am not sure, according to the data sheet it should be possible, just won't be the most efficient charging. Check the figures in the data sheet!
We need to Connect more pins for enable wifi or Deep sleep ? Like the esp8266 . I've spent the whole day traing to conect and i only was able to make a led blink whith the bare chip ( no developmen board )
I am not sure I understood everything. You should be able to get into deep sleep without any hardware modifications, just code.
Thx for the video. What gage of solder did you use? How hot did you set your iron? I have a hakko, may need a smaller tip based on what yours looks like.
I think the tip size is not the issue (or at least shouldn't be), the temperature depends on the solder material (is it lead-free or with lead, etc.), you can find that in the specification or online! Usually, the temperature is above 180C and below 280C.
Does the uart supply enough power to the esp32? I have a broken usb port on an esp32 d1 mini and i cannot get it into boot mode using an ftdi. Let me know if you have any advice. Thx for the video.
Hi Brian, as far as I remember it did. Usually, all the ESP32 boards have an LDO regulator and the old USB standard should support at least 500 mA. But the best way to test it is to program it via the UART and then connect it to an external supply. This way if it connects to the WIFI, you will know for sure the UART doesn't supply you with enough current and the issue is with the power supply.
@@refikhadzialic6229 i like your suggestion, I was able to get it to work by putting at 1000 uF capacitor between the ground and vcc of the FTDI. Thanks for the tip.
@@henninb Perfect, I am glad it worked out. Sometimes a capacitor can help, most of the time. Sometimes, if the value is too big, it can be messy. I always like to have a working setup so I can compare it in a stepwise manner and locate where I made a mistake :) good luck Brian!
What I was looking for thank you
Thank you
I have a question - i try atm to make a project out of a esp32, tft display, ... is there a way without datasheet to calculate how long a battery will least? From tft display for e.g. i dont have a datasheet. What would i need for it to see how high the power consumption is?
I am trying something similar- considering the Sparkfun Artemis boards, like github.com/TUDSSL/ENGAGE they use the TI BQ25570. it would be interesting to make a micro-Raspberry Pi w/nanolinux out of it, but I don't know anyone else working on this. I was thinking e-ink might be lower power, but the the circuitry as they mention is more complex. Thus I'd like to use something like www.j-display.com/english/product/reflective.html or Sharp memory display.
Thanks for sharing it - i searched for it! What do you use in the beginning to clean? the PCB, or is this for something else to give connectivity?
Alcohol to clean the PCB. Later on, where the soldering joints will be, flux.
@@refikhadzialic6229 thats awesome - atm i have a esp project, and i think i will need a own pcb - but it looks i will need a lot of patience ^^
Waow found your webpage - its really awesome and exactly what i searched for. Thanks !!!
Thanks!
Is this available commercially? And where can we acquire this one?
Do you mean the BQ25570 on the PCB? If so, yes. AliExpress or Ebay if you want the same board as I have had used in the clip.
NIce video! Thankyou for put an end to my doubt. I see that ESP32 have flash SPI so I stay confused, but now its ok.
I am glad you liked it. Thanks
I'm planning to build a similar setup with roughly 2/3 of a Sunpower C60 cell and a BQ25570. I've never tried this before so it'll be interesting.
Hello Refik. How can I update its firmware? Do I need to use cts and rts pins?
You can but it is not required, depends how your programming circuit looks like and what kind of USB2UART you are using (in case you are not using a programmer)
What the voltage you inject inside the converter ?(What's the Input Voltage Range ?) Instead of using it for solar panel, do you think it allows to use with a thermoelectric generator?
I believe you can find the voltages in the data sheet for that specific IC.
You have BOOT tactical switch on that board for setting ESP32 in programming mode. No need for connecting GND and GPIO0 with jumper wire. Actually purpose of BOOT switch is to do that. Anyway, nice video! Keep it up!
Thanks for your comment. You are right
combination is same like 8266 ? BOTH button press--> release reset first --> then release IO0 button?
@@sijojohnson Yes it's the same. Press and hold boot button. Then press reset button once. Release boot button at the end. The goal is to have the boot button pressed in the boot time.
Where is the boot button on that board? I have a mcu running on this esp32 chip with no boot or reset buttons. Is this video the way I should program it since I don't have any tactical buttons?
When did you take this trip?
A few years back? Why?
Sorry - I meant which month. I'm visiting in January and wondered if this trip is running. I haven't found any fjord trips that are on in the winter season that aren't over 5 or 6 days long.
I think it was end of February, start of March, it was maybe 1-2 hours away from Bergen, I don't remember the exact location. Part of the trip was with an old train that can go quite steep and it cost me around 1000 NOK. There are other nice tours, you just have to find a tourist office and a nice employee because although most of them speak English they are not very honest. This was my second tour, before that I took a fairy boat trip to an island and I asked them before will I see the Fjords, I came to Norway to see them and the woman said yes, yes, of course and there was not a single Fjord to see! So just ask a lot and ask more persons if you can! Good luck!