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- Просмотров 172 583
Tech-Relief
США
Добавлен 2 июн 2021
As a retired Software Engineer I decided to return to my original schooling as an Electronics Engineer. In the last 30 years electronics has changed and you can join me as I update my Lab and evaluate equipment and devices as well as join my projects in anything from Electronics, 3D Printing and even some Metal and Woodworking as required.
Cheap AliExpress PCB Heating Element Test
In this video we see if we can use one of those heating elements costing less than $4 on AliExpress for Soldering and De-soldering SMD components.
Heating Element: www.aliexpress.com/item/3256806134311878.html
Metal Box: www.aliexpress.us/item/2255799862370346.html
Chapters:
0:00 Intro
2:02 Review / Voltage vs. Current Draw
12:06 PCB Desoldering Test 1
15:53 PCB Desoldering Test 2
17:47 SMD Soldering Test
19:38 Desoldering Test 3
22:00 Completing Project
Heating Element: www.aliexpress.com/item/3256806134311878.html
Metal Box: www.aliexpress.us/item/2255799862370346.html
Chapters:
0:00 Intro
2:02 Review / Voltage vs. Current Draw
12:06 PCB Desoldering Test 1
15:53 PCB Desoldering Test 2
17:47 SMD Soldering Test
19:38 Desoldering Test 3
22:00 Completing Project
Просмотров: 165
Видео
More AliExpress Stuff
Просмотров 2,1 тыс.28 дней назад
Got some more stuff from ALiExpress to review. 13 in one USB-3 Tester / Power Meter: www.aliexpress.com/item/3256806661873188.html Hdmi / Ethernet Cable Tester: www.aliexpress.com/item/3256805568659390.html SMD Transistor Assortment kit: www.aliexpress.com/item/3256805818657536.html 1.5mm to 6.5mm Drill Set: www.aliexpress.com/item/3256805283076575.html Metal Cell Phone Holder: www.aliexpress.c...
SeeSii Portable Solder Station Review
Просмотров 131Месяц назад
In this video we review the SeeSii battery powered portable soldering station. We will test how it works for micro-soldering and also more heavy duty soldering. I found it to work well and could even be used as a first soldering station for some one starting out in Electronics but also useful to use in the field when there is no power outlet nearby. If you would like to purchase a SeeSii solder...
Designing a Relay Board using NextPCB and KiCad.
Просмотров 85Месяц назад
In this video we design a general purpose Relay board which can be used stand alone or connected to microcontoller such as Arduino. The board is designed using KiCad and the Gerber files are sent to NextPCB to be manufactured. We also have alook at NextPCB's online Software to view Gerber files and to check for any errors. SInce this is the first time I used KiCad to generate files for PCB manu...
Finishing the Digital Multi-meter Windows Application
Просмотров 90Месяц назад
In Part 1 we discovered which resources were available to write software to connect to the HDM3000 series Hantek multi-meters. We tested the VISA drivers to control the unit remotely and to display readings on a PC. In Part 2 we will actually finish writing the Windows desktop application and place source code in GitHub. The application is based on Visual Studio, C# and Winforms to keep it simp...
Shure SCM 810 Audio Mixer Repair
Просмотров 110Месяц назад
Replacing the eight channel input controls which are worn out and make loud noises when adjusted.
Writing Software for the Hantek DM3000 Series Multi-meter
Просмотров 622 месяца назад
In the last video (ruclips.net/video/ItazpFHlv9Y/видео.html) we did a quick review of the Hantek HDM3065 digital multi-meter. In this video we start to research and test what it takes to write software to control the unit remotely and to display readings on a PC. Especially for use with recording RUclips videos. In Part 1 we discover what drivers need to be installed, what SCPI commands are etc...
Lab Multimeter Upgrade, HANTEK 3065
Просмотров 1582 месяца назад
Replaced an older bench multimeter with a new HANTEK 3065. A quick review.
Fixing a Vintage Novelty Radio
Просмотров 1012 месяца назад
Someone gave me a novelty radio which is no longer working let's fix it!
Dual Channel PSU Next Level Updates
Просмотров 1992 месяца назад
In this video we revisit the Chinese Dual Power Supply (PSU). In the last video we added some relays to be able to disconnect the output power; however, this had some undesirable side effects. 1. The Serial/Parallel mode which switched off would not display the voltage it was set to. 2. The added wiring created an unacceptable amount of ripple. In this video we correct those problems by going t...
PlatformIO to Arduino IDE Code Conversion
Просмотров 2123 месяца назад
I short video showing how to convert and compile PlatformIO projects using the Arduino IDE.
Dual Channel PSU Modifications
Просмотров 3793 месяца назад
In this video we add an output switch to a cheap Chinese bench PSU and correct some errors and sloppy solder joints. Lab Equipment & tools: ATTEN ST-1509/9150 Soldering Station: www.aliexpress.com/item/3256803474681871.html ATTEN Soldering Iron 130W: www.aliexpress.com/item/3256802581014046.html ATTEN ST-862D Hot Air Station: www.aliexpress.us/item/2255800796511424.html ATTEN ST-9150/9130 Solde...
Fixing a faulty relay board.
Просмотров 8004 месяца назад
In this video we repaier a faulty relay board received from AliExpress for use in our power supply upgrade. Lab Equipment, Software & tools: Soldering/Desoldering/PCB & Electronic Repair: ATTEN ST-1509/9150 Soldering Station: www.aliexpress.com/item/3256803474681871.html ATTEN Soldering Iron 130W: www.aliexpress.com/item/3256802581014046.html ATTEN ST-862D Hot Air Station: www.aliexpress.us/ite...
Dual channel PSU evaluation.
Просмотров 8854 месяца назад
In this video we evaluate a dual channel power supply. Will it do or do we really need a linear power supply? It seems to have two completely independent switch mode power supply boards plus a third smaller switch mode power supply to supply it own circuits with power. We will have a look and test it's output. Lab Equipment, Software & tools used: Rigol Oscilloscope: www.amazon.com/gp/product/B...
What the Flux?!
Просмотров 1605 месяцев назад
A short video about some developments with flux ... Other videos mentioned: ruclips.net/video/IG8_NAP72oU/видео.html ruclips.net/video/7ykYYLTtnKE/видео.html Stirri V3 Flux: www.amazon.com/gp/product/B0CB5B94K8
Making up a good electronic bread-board
Просмотров 1035 месяцев назад
Making up a good electronic bread-board
Update 3/24 Fixing some bad Li ion charge boost boards, review of bread boards, USB3 hub etc.
Просмотров 845 месяцев назад
Update 3/24 Fixing some bad Li ion charge boost boards, review of bread boards, USB3 hub etc.
Logic Level Conversion, when needed?
Просмотров 2086 месяцев назад
Logic Level Conversion, when needed?
Ep.8 Upgrading a wired Keyboard to become a Wireless Bluetooth Keyboard.
Просмотров 6147 месяцев назад
Ep.8 Upgrading a wired Keyboard to become a Wireless Bluetooth Keyboard.
Ep.7 Creating a USB to Bluetooth Keyboard Dongle.
Просмотров 1,9 тыс.7 месяцев назад
Ep.7 Creating a USB to Bluetooth Keyboard Dongle.
Analyzing the HID Keyboard protocol using a logic analyzer.
Просмотров 3327 месяцев назад
Analyzing the HID Keyboard protocol using a logic analyzer.
Ep.6 Attaching a Keyboard to an ESP32-S3 Board
Просмотров 3 тыс.7 месяцев назад
Ep.6 Attaching a Keyboard to an ESP32-S3 Board
Episode 5: Bluetooth Keyboard HID Device Emulation.
Просмотров 6667 месяцев назад
Episode 5: Bluetooth Keyboard HID Device Emulation.
Episode 4: ESP32 USB HID Device Mode.
Просмотров 6 тыс.8 месяцев назад
Episode 4: ESP32 USB HID Device Mode.
Episode 3: Getting the SD Card Interface Working.
Просмотров 5828 месяцев назад
Episode 3: Getting the SD Card Interface Working.
Episode 2: Getting Started with TFT Displays.
Просмотров 3338 месяцев назад
Episode 2: Getting Started with TFT Displays.
ESP32 Adventures Ep.1 Getting Started
Просмотров 5608 месяцев назад
ESP32 Adventures Ep.1 Getting Started
Hi Sir thanks for the video, Can I ask please, which pin numbers are for i2c and SDA?
The default on esp32-s3 is Gpio8 & Gpio9, but you can assign them to whatever pins that are free on the ESP32 based boards (GPIO8 to GPIO14 seem to be good targets?) just assign the correct pin numbers using the function: Wire.begin(sda, scl); in your code.
@@Tech-Relief thank you very much.
The capacitor measurements have been decalibrated, I have no problem calibrating the rest, but this is impossible. Does anyone know how to do it?
Good teardown, and from the control labelling, I think I know the home of this mixer. I need to do the same repair for the same application. Where did you get the replacement pots? I have not been able to find any in stock anywhere, though they once were a common type. Thanks!
Got them from Shure tech support, they were only $1.80 each.
Can check value oscillator?
Not sure what you are asking, you mean can it be used as a frequency counter?
I don't know,why I'm interested this model haha. I'm already buy 1.dso138 2.gm328 3.lcr t7 4.tester counter crystal oscillator
Learn to talk or read the details. Before you present
Why is he wearing those stupid gloves?
I just use two pencil irons.Way cheaper.
Sure but just sometimes there is very little room and then a pair of hot tweezers are indispensable.
I would overvolt capacitors, as they are not rated for such abuse. Best to apply rated voltage and observe leakage current.
Well the idea is that the current capability is so low that any resistance will lower the voltage to where some current will flow. i.e. the output impedance is very high. Most modern components will then show the voltage at which they are starting to break down. Having said that, it is true that old capacitors may break down and be damaged before the voltage is reduced. I have seen this on 60 year old paper capacitors. So this device should be used with caution.
Wow how cool I have to get one Thanks for the Video
Absolutely outstanding video; great explanations.
Good choices, well done.
Great video.. with a lot of exampled usecases..
The sound is terribly. Please use a better microphone ...
Better than crap music!
Good content, but please get a better mic. It'll feel much better for the listeners
thank you
Hope your right. I just bought the autofocus from aliexpress.
So you turned off auto focus and are using .75 Barlow lens?
If you are talking about the microscope camera, it does not have autofocus so I assume you mean the auto exposure? In that case yes I use it with auto exposure turned off so I can adjust the external lighting to get the best exposure.
I tend to use the .5 or .75 barlow les as appropriate.
do we need to solder the RGB icon on the board to make RGB LED works? do you have code of this esp32s3 RGB LED works?
No the RGB Led came with the board and the code was simply based on the Arduino RGB Led test code available in the Arduino IDE samples.
@@Tech-Relief thanks I found it under esp32 gpio I realize some boards esp32s3 works but not this version as there is an area RGB soldering split into half. I read other comments that need to soldered together then it will work, have U try RGB and work out of the box?
@@yes_man_lol Yes the board I have did not need any links to be soldered. As far as I remember it just worked.
Is the code available to download?
Have a look at the Tech-Relief Github repositories: github.com/TechRelief?tab=repositories
@@Tech-Relief I have checked it but didn't find these codes. It will be helpful if you publish this as well.
@@Tech-Relief It's not there
@@LearnTodayTech Keep in mind this code was used as a way to test keyboard output using the Seeed Studio USB OTG Board which has an LCD display. Is was meant to be a step moving toward software leading to the USB KB Input and BLT Output. However, I pasted the code here which has evolved a little from the one in the video: pastebin.com/yr5FVK9P That is about all I can do right now...
@@Tech-Relief Thank you so much. Let me try this.
Look Up Handskit tweezers
A bad English speaker making fun of another bad English speaker lmao
Thank you for the review.
Thanks for the review, I was looking for affordable tweezers!
Hey, I have the same board and can't find it in the board selection dropdown menu of ArduinoIDE
just go with ESP32S3 Dev Module
So I use PlatformIO with VS Code instead of the Arduino IDE and there it is known as: esp32-s3-yd-wroom, I would try some of the other ESP32-S3 boards listed in the Arduino Board manager with similar characteristics. Or better still just migrate to PlatformIO ...
@@Tech-Relief Hi ! So for some reason the borad "esp32-s3-yd-wroom" is not showing in the board section of platformIO, why could this be happening?
@@MarEz1309 Not sure make sure you have the latest updates for platformio. However, you can download the .JSON board file from this location (save it as esp-s3-yd-wroom.json): pastebin.com/UcxDxmfk Save it in the platformio boards folder: C:\Users\{your-user-id}\.platformio\platforms\espressif32\boards Replace {your-user-id} with your actual windows user id, it should then show up when selecting boards... Hope that helps?
Nice job on going over features. I have an older ET5410. The A+ is way nicer. I just got the ET5420A+ so it has the same features as your ET5410A+. It was worth getting it. I almost didn't get it since I already had the other load tester. But now I have to great new features. THANX!!!
Thank you for this detailed review.
Comes with a free solder sucker
good to know thanks for the info found out they made spade tips for ic removal too
they nowadays make heated tweezers , these work great on the tiny resistors , there more expensive versions that allso have spade tips to remove ic chips , sofar i havent found those on aliexpress so i might have to make a set myself from a normal set , not sure yet if im going to hammer them in shape or somehow weld pieces of copper strip on them
Yes, these are the hot tweezers I use. They are very good.
ruclips.net/video/7Jzx2LjOxfc/видео.html
8:30 what terrible performance… it should be 3 seconds max. 10:53 such a small component should take less than 1 second and not look like you’re ripping it off the board. Friend, you should not advise people to buy this. It’s such a waste of $200. You can just use two irons or one iron tip that spans both pads (or use hot air). Soldering tweezers are a luxury. Apart from saving time with SMD rework, the point of them is to press a pedal to turn the heat off so they can handle components like regular tweezers. Or you can use them to hold a component & solder it in place (but you can do that same job with one iron & some flux). 350*C for 20 seconds - pads & tracks can get lifted and components should be thrown away after so much heat. Brand new components spec: solder 260*C for 5 seconds for reference.
Not entirely sure what you are talking about. I used that board on purpose it is a board that was coated with something to seal it and was designed to go up with a weather balloon at very high altitude and it is difficult to remove components from it. Using cheap hot tweezers did not work on this board as a previous video showed. The Atten tweezers made it possible to remove the components and I use them all the time, on a standard PCB the components come off with or without flux immediately. They can be used in cramped sections of a PCB which you could not do with two soldering irons. I mean there are many ways to desolder components and you can use the method you like best for me I use the hot tweezers often and they work well for me.
@@Tech-Relief oh I didn’t realise it was covered in a conformal coating. Because RUclips is playing up, I don’t watch in HD anymore. So everything is blurry.
@@Tech-Relief have you tried using a regular soldering iron with a tip that can touch both sides of a SMD capacitor at once? The common Chinese knife tips can do it, but I’ve seen better geometries specifically designed for the job.
Does everyone's tester resets all settings back to default once switched off?
I am not sure if it remembers all of the settings but it seems to remember the current setting and the limits for Amps, Watts and Voltage and the settings I changed originally.
Nice
Test the IP5306 chip next
I remember seeing these in many houses back in the 70s & 80s
Thank you for sharing. That was an interesting repair to an old vintage car made in Japan. Sadly they don't make them like that anymore in durability. I repair a lot of electronic devices and I have repaired a few old cassette players, Walkman and radios, which I have owned over the years and for family and friends. Most of the time the fault is obvious power issues, blown capacitors, diodes, resistance, fuses, motors blown and power supplies issues. In addition very simple issues like corrosions and connection issue due to solder fatigue. Most faults identified using multimeter and looking at circuits for voltage and simple visual checks etc. One thing I do not have is an oscilloscope. Perhaps in the future I will invest in a portable one like the Owon.
Thanks for the great video !!
As long as the Chinese are making cable with copper coated aluminium wire then yes we do!!
Wow! Copper tape vias! Cool! I love your attention to detail and craftsmanship. I take it that the point of going to this effort is so that you maintain a flat surface, under the relays. Ideas, for the next time... It looks as though you chamfered the edge of the via holes. Maybe leave them square, so that you might be able to bridge the solder to the tape, or whatever conductor you use. How about using a bit of flattened copper wire, or braided solder wick? If you used hot air to heat the PCB on both sides, at the same time, you might get away with just flooding the via hole, completely, with solder. Excellent success with the noise reduction! I am really enjoying this DIY adventure. And, the fact that you are making these upgrades not out of necessity (you could just buy a better PSU,) but for the joy of learning and the fun of building. Kudos!!! Please, sir, may we have some more of this type of content?
Yes, I am. mostly doing this for the challenge and some fun.😊 you are right there are a number of ways to deal with the lack of plated through holes. I could have just put on some large vias and simply soldered a piece of wire through them but I was wondering if I could use copper foil... I use this foil for fixing broken tracks on pcbs as well.
Another great tutorial! I am running this on MacOS and the only changes I needed to make within platformio.ini was the following and the last flag was key to getting the breakpoints aligned with source: debug_tool = esp-builtin debug_init_break = tbreak setup debug_build_flags = -O0 -ggdb3 -g3
Can i Check any bettery with this device.
With the Xiao ESP32S3 board, when it is running on the charged battery, can we connect a USB keyboard to it? Can the battery drive the USB keyboard in addition to the Xiao module itself? I have 2 doubts: 1. Standard battery voltage is ~ 3.7 V. Does the battery charging circuitry boost it to 5 V which can be used for the USB keyboard? 2. Does the battery charging circuit support this much current needed by the keyboard? I am planning to purchase a Xiao module. So, these questions before I actually make the purchase. My understanding is that the type-C port on the Xiao board is for the serial only. And the USB host functionality is at the back. Is that understanding correct, or does that also support USB OTG?
With regard to the battery capability it is able to run from a li-ion battery and also charge it. However, I had a circuit in which I connected an external device to the 5V pin but it did not work well (perhaps it drew too much current?). I chose to use one of those li-ion cell charge / boost boards externally and not use the battery capability of the microcontroller board in that case. Secondly, the USB-C port can be used in host mode but then (since there is only one port, the pads on the bottom connect to the same pins as the USB-C socket) you will have to hold down the boot button to put it back into serial mode for uploading code.
Better off buying a cheap amg8833 sensor.
In fairness the Aneng multimeter for 20 bucks is an amazing multimeter from China. I wish Aneng would make a thermal camera.
What good is a multimeter in it?
Gimmick?
It might be useful for some people but a separate multimeter and thermal camera is much better...
@@Tech-Relief I got an Aneng multimeter 8009 for 15 euro delivered and it's a brilliant machine. I personally cannot see how combining a thermal camera with a multimeter would be of any benefit.
@@Tech-Relief If Aneng make a thermal camera, I will snap it up.
A great video thanks, clear concise and no dammed music blaring .
Yeah, I hate background music also'''
Thank you for the video. I have the exact same board, but it seems the I2C functionality is missing, I am using pin 21 for SDA and pin 19 for SCL. I always get the output no I2C device found. Just wanted to ask if I am missing something.
I am completing several projects right now, and I will have a look at it when they are done. However, what are you connecting to the board?
@@Tech-Relief I was trying to connect a temperature and humidity sensor, Adafruit AM2320. I ended up purchasing another one DHT22(that does not require I2C protocol, and it worked perfectly). Today, I wanted to try creating a circuit using the 5Vin pin, and I find that it does not work automatically like 3V3 pins, and I have no idea how to make it work. Do you have any recommendations fro that?
@@emrebaser3803 I am out of town right now when I get back next week I will have a look at it.
@@Tech-Relief I have a proyect on ESP32 (pin 21 for SDA and pin 20 for SCL.) with a RTC that im going to export to S3 and the fist think that i check was the pin out for a esp32s3, and thearent the same, check the S3 PIN OUT AND LOOK for SCL 9 AND SDA 8 on s3 not all PINOUTS FOR S3 HAVE LABLED SCL AND SDA
@@emrebaser3803 solder the in out pad on the board and the 5v pin will work fine
You can send up to 6 keys. Right? So, does it mean you can also send combinations like ctrl+shift+a or ctrl+alt+windows+F1?
Yes it is possible to send key combinations. Some keys like shift, alt, ctrl and the windows key are treated as shift keys and these will appear in each data packet as long as they are held down.
Can we do something like USB keyboard+mouse passthrough to Bluetooth? I recall the BT HID page descriptors are nearly identical to USB ones. So, do we need to interpret the keys from USB packets or can we just send the USB payload over BT? I think sendlnputReport(report); ///Send it out via BLE is doing the same. Right?
Yes as far as I remember the hid codes between USB and Bluetooth are identical.
AI wonder for the way that st-1509 wake up. t12 based on ball type vibration switch which bother me to static soldering op it just take a sleep mode even im doing solder Could you leave me some reply how st-1509 take sleep mode? Does st-1509 have the same sensor?
I am not sure what type of sensor is used but the standby and wake up time is programmable and works perfectly for me.
@@Tech-Relief thanks for the answer :)