Alexandre
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Alexandre Thanks for the thingiverse tip :) And yes, it is a nice gadget, something I would have loved to have some 30 years ago...

ve7it 09/08/2020
I received V1.4 of this board... it has slight changes to the I/O configuration. These boards are just a blast to work with. Have a look at https://www.thingiverse.com/thing:4565213 for a 3D printed case design in openscad. Software support for these is through the Arduino IDE and libraries from https://github.com/fdivitto/FabGL. If you like esp32, you need more than one of these boards. It can even emulate a whole Altair Z80 computer box and terminal in a few cubic inches or a VIC20 or run all kinds of ancient video games (prehistoric stuff from the 70's or 80's!)..
وحدة تحكم LILYGO® TTGO VGA32 V1.4 PS / 2 وحدة تحكم الماوس ولوحة المفاتيح الرسومات Library Game Engine ANSI / VT الطرفية لـ ESP32
US$21.99 US$29.99
3
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Alexandre Thanksfor the tip!

2a67c6 24/07/2019
Works well (contains Asteroids game). (Warning: if powered when PS/2 and/or VGA disconnected, the voltage stabilizer [smd 5 pin device] gets very hot rapidly. If connected, there is no such problem.)
وحدة تحكم LILYGO® TTGO VGA32 V1.4 PS / 2 وحدة تحكم الماوس ولوحة المفاتيح الرسومات Library Game Engine ANSI / VT الطرفية لـ ESP32
US$21.99 US$29.99
1
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RIDEN® DPS5005 50V 5A وحدة إمداد طاقة التيار الهابطة بوظيفة الاتصال الثابتة للجهد الحالي محول الجهد مع مقياس الجهد السائل البلوري
US$34.99 US$52.99

سؤال: I need a unit exactly like this that can provide a positive voltage and a negative voltage? So can the output for example be configured to be on one preset to +5V and then on another preset to -5V? If not please advise on workaround or similar product? Thanks.

السؤال بواسطة ianmacd على 2019-09-23 12:19:12

Alexandre I have one of these too. It only outputs positive voltages, always lower than the input (a couple of volts)

2021-01-23 08:03:57 مساعدة (0)
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كاميرا 1080P HD Webcam Video Recording USB Web مع ميكروفون للكمبيوتر والكمبيوتر المحمول وسطح المكتب
US$14.99 US$16.99

سؤال: mic does not work

السؤال بواسطة BG381241073 على 2021-01-05 12:42:03

Alexandre I have a similar model and I opened it to check the mic type - it has no mic, just a hole🙄

2021-01-23 08:01:10 مساعدة (1)
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Alexandre Ggprhellas,couldyou inform us what OS you are using? 32 or 64-bit? My camera isn't working...

gprhellas 04/11/2020
Good quality image, no drivers needed very quick installation with generic drivers, work fine. And fast delivery to Greece. πολύ καλή ποιότητα εικόνας για τόσο μικρή συσκευή. Δεν χρειάζονται drivers απλή εγκατάσταση και χρήση αμέσως.
كاميرا ويب عالية الدقة مع تركيز تلقائي وميكروفون للكمبيوتر PC و-Camات فيديو المؤتمرات
US$12.99 US$14.99
4
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Alexandre You could be a really nice guy and explain the slight modification, couldn't you? it could be useful for me and other people. Please do that :)

Aurum 15/11/2019
After a slight modification to provide 3.7V, this PSU gave this oldie GB switch a new life . Happiness 8)
محول تيار من AC 110-220 فولت إلى DC 5 فولت 4 أمبير 20 وات لإضاءة شريط الليد
US$12.99 US$15.99
1
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Alexandre BG184843942, funciona com um rato wireless bluetooth? já experimentou?

BG184843942 04/10/2020
funciona perfeitamente por um preço justo
آن Pro 4.0 بلوتوث محول 4.0 USB مستقبل بلوتوث دونجل اللاسلكية USB محول
US$8.99 US$10.99
0
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Alexandre Quality of the photos is more than enough, quite good, in fact.

BG521153850 24/07/2020
Delivered in 12 days from China to Poland. Wow! That's impressive. So far so good, works very good. Latency is very small (practically no delay, didn't notice any different from cable). I am very satisfied. Didn't even struggled that much (i didnt know that i have to hold f1 + fn1 to pair the device). I love it <3. Personally I recomend this product to everyone who wants their keyboard to be wireless. P.S. Sorry for quality of the photos, but I had to copress them to be a little bit smaller.
آن Pro 4.0 بلوتوث محول 4.0 USB مستقبل بلوتوث دونجل اللاسلكية USB محول
US$8.99 US$10.99
5
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لوحة موديول الاستشعار 37 في 1 من بداية الأطقم باستخدام كيس بلاستيكي لأردوينو Geekcreit
US$14.99 US$16.99

سؤال: Some boards are not connected the right way. ground may be vcc or the other way around. Be carefull

السؤال بواسطة Zark على 2019-12-27 02:52:35

Alexandre That will make you think before connecting the modules.

2020-11-04 03:00:14 مساعدة (0)
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لوحة موديول الاستشعار 37 في 1 من بداية الأطقم باستخدام كيس بلاستيكي لأردوينو Geekcreit
US$14.99 US$16.99

سؤال: Can these sensors be used for ESP32 board?

السؤال بواسطة Fmarcelo على 2019-06-11 05:56:25

Alexandre Just remember the ESP32 module works with 3.3V

2020-11-04 02:58:33 مساعدة (0)
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Alexandre Rubenspambanggood: thanks for the tip 👍

Dr_Pedro 13/09/2020
This is my first 3D printer and I totally love it. Assembly was easy and there are many tutorials and guides online. The quality of print is very good for everyday use. I mostly print parts for my RC Kwads. It is easy to print PLA and TPU parts. Buy good quality PLA filament if you want strength. The cheep filaments are very easy to break. Overall, very happy with this printer, not much noise and can run for many hours non-stop. Strongly recommended 👌 Thanks to seller and Banggood for excellent service.
Creality 3D® Ender-3 Pro طابعة ثلاثية الأبعاد لتقوم بها بنفسك عدة 220x220x250 مللي متر حجم الطباعة مع ملصق منصة مغناطيسية قابلة للإزالة
US$249.00 US$349.00
44
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Alexandre Good ideas!

transferx 13/02/2020
I have modified it to work with a li-ion battery with mt3608 step-up converter and tp4056 usb li-ion charger. Also, the battery itself has a protection module. Now, it can also output on 9v dc, so I can use it to power other devices. Seems to work without problem. I have not removed R30 and did not use the switch, instead, I have connected a switch directly to the output of the battery.
أصلي JYETech DSO-SHELL DSO150 15001K DIY منظم الاهتزاز الرقمي غير مجمعة مع علبة
US$28.99 US$45.99
26
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Alexandre Just a question, what do you mean by "limited life"? Is the laser life expectancy very short? Answer, if you please

pkatsig 23/05/2020
useful module, limited life
5 قطعة KY-008 5V 3pin 650nm الارسال نقطة ديود C0pper رئيس وحدة الليزر الأحمر AVR الموافقة المسبقة عن علم لتقوم بها بنفسك
US$3.99 US$8.99
1
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Alexandre This is what I call A REVIEW!

Bogwombler 23/07/2017
It is unexpectedly accurate for the price. However, my kit had the wrong size IC socket. It was a 16 pin socket instead of an 18 pin. Fortunately I have a huge supply of parts so I created a socket out of a machined header strip. I couldn't see making an issue out of a 30 cent part. Plus the instructions are barely adequate. You basically have depend on the silkscreen for part placement. To build it I used a fine soldering tip and AlphaMetals .015" no clean solder. I also recommend wearing an anti-static wrist strap while handling the parts. Despite being no-clean solder I cleaned the board anyway with 91% Isopropanol. Testing was problematic as there is no indication of what the signal level should be. The counter needs approx. 3v peak to work. Once it locked the accuracy was comparable to the readout accuracy of my O'Scope. I also tested it with a 3.58 MHz xtal and the reading was within the tolerance of the xtal. I intend to use this as a readout for my DDS RF source and will probably buffer the input with a home brew cascode JFET amplifier. I am willing to share my notes about this product if anyone has questions or difficulties.
Geekcreit® DIY جهاز قياس التردد 1 هرتز -50 ميجا هرتز عداد كريستال مع مجموعة الإسكان
US$10.99 US$12.99
7
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Alexandre Good review, good advice (the thermal compound) 👍

nyulnoi 26/08/2020
You can adjust voltage on the fly. So it will instantly change, if the output is ON. The device has 3 PCB. There is a B10100G Schottky rectifier (10 Amp, 100 Volt), B75NF75 N-channel 75 V Power MOSFET, STM32F100C8 ARM-based 32bit MCU and some small smd IC. The thermal compound is missing between the large diode + mosFet and the heat sink, I suggest to apply.
XYS3580 DC DC محول باك بوست CC CV 0.6-36 فولت 5 أمبير موديول طاقة معمل قابل للتعديل ثابت
US$27.99 US$33.99
19
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Alexandre 28/08/2020
The Ender 3 Pro is the perfect printer to enter the 3D printing world :) Very easy to assemble - takes some time but that's ok, no hurry. Some friends of mine had a few problems before achieving good results with other printer models - with this one, I got good results, right from the first model, a small dog, one of the examples included in the SD card. I cannot but recommend this printer to anyone wanting to start printing in 3D - thumbs up!!!
Creality 3D® Ender-3 Pro طابعة ثلاثية الأبعاد لتقوم بها بنفسك عدة 220x220x250 مللي متر حجم الطباعة مع ملصق منصة مغناطيسية قابلة للإزالة
US$249.00 US$349.00
0
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Alexandre Very useful review 👍

mirek238 26/06/2020
Mixed feelings... Pros: * I practiced my soldering skills * Seems to work - but probably I will need to replace my battery (not included) for a better one. * Compass - worked very well in terrain - easy to level horizontally Cons: * No battery incl. Item's name and description is misleading (stating "Power Capacity: 20000mAh" etc.), 1st answer for the 1st Q&A question suggests that there is battery, etc. * Batteries suggested in Q&A (18650) do not fit in. There is no information, that there is only 60mm x 90mm x ~14mm room for battery - so the best fitting battery (according to some Q&A replies) is 126090 3.7V 8000mAh - much smaller than advertised 20000mAh * ONCE YOU CLOSE THIS POWERBANK'S CASE, YOU PROBABLY WON'T OPEN IT WITHOUT BREAKING SOME CLASPS. They are very stiff/rigid, not flexible at all - so instead of bending them a bit to open case, you will probably destroy the case (in places where the clasps go). Don't close it until you have mounted battery, soldered and connected all wires, placed correctly rubber and snap link! It's good idea to check if everything works fine before closing the case. * No manual - so you have to figure out by yourself how to assemble it and that solar panel should be soldered to S+/S- (not S1+/S1-) and battery to B+/B-. Not hard to guess, but manual (even some simple PDF/JPEG) would be helpful. * I also had to solder 1 cable going to LEDs - as it was not connected on one end (maybe ripped off during transport). * No screws included (2 to mount circuit board, 4 to screw the case) * I don't think it's waterproof - to many ways in for water * I installed some li-ion battery (new), 4000mAh, the only I could get in 2 days before my trip - it doesn't fill up whole room for battery, and is held by 2 stripes of reused double-sided tape - so it might come loose and even rip off some cables :-( After fully charging power bank it charged my 4000mAh phone only for about 20-25% - and I don't know if it's battery's fault or power bank's.
Bakeey 20000mAh Dual USB DIY الشمسية القوة مجموعة علبة البنك مع LED ضوء البوصلة
US$11.99 US$14.99
38
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Alexandre 18/08/2020
Works perfectly. Not suitable for small hands - I like to rest my hand in the mouse's body, it feels comfortable, even after a few hours continuous work. I like it a lot, I think I'll buy another one :)
سكاي وير 2000 ديسيبل 2.4 غيغاهرتز ويلرمل 6 مفتاح الفأرة البصرية المحمولة لأجهزة الكمبيوتر المكتبية
US$7.99
0
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Alexandre 18/08/2020
Efficient and comfortable (and the colour is nice, too). Recommended. After a few days, working perfectly, someone stole the bluetooth adapter. Can anyone recommend a replacement unit, among the many models available her, at banggood?
هسج X50 ماوس لاسلكي 2400 ديسيبل متوحد الخواص 6 أزرار ABS 2.4 جيجا هرتز اللاسلكي ماوس الألعاب الضوئية
US$11.99 US$14.99
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