Karmajun
İçeriklerim
Tüm Mesajlar
İncelemeler
Yorumlar
cevaplar
Sorular

Tüm Mesajlar

3-5 V USB Hattı Stirling Motor DIY Elektronik Parçalar İçin Çok İşlevli Parça
US$9.99 US$11.99

Q: Clearly this hooks up to 5 volt usb power - but how do you adjust the output from 5v toward 3v, and what amperage is the maximum output? This sounds like a nice article, but without amperage or voltage adjustment instructions, what can we do with it?

Soran Karmajun Açık 2021-01-23 12:55:55

Oocephalus This accessory is suitable for DIY generator

2021-02-05 09:12:03 Yararlı (0)
Gönder
cevaplar (1)
Karmajun 02/05/2020
This little voltage tester pen appears to be a plastic joke. It is so lightweight and colorful I thought I was holding a child's toy. Then I put the two AAA batteries in and tested a few outlets. It was fairly sensitive, it responded to the AC voltage just as it should. I flipped a few breakers and checked outlets again (I know, if I had common current because of some idiotic electrical wiring on this older home, I would get positive power on dead circuits since the circuit breaker only shuts off the "hot" wire in the circuit) and all the circuits I "killed" showed "No Voltage". I've rewired a few lights where the previous service screwed up the common and hot - and been shocked while installing a new light fixture or ceiling fan & light. Now I have a voltage tester for less than $10.00 (that I thought was too good to be true) and I'm thinking about getting two or three more! At this price, I would like to have a few spares even if they feel too lightweight and plasticky to be a working tool!
DANIU ET8900 Temassız Gerilim Test Cihazı Kalem Sinyal Yoğunluğu Ekran Hassasiyet Ayarlanabilir Otomatik I
US$13.64 US$15.99
1
Tavsiyeler
Yorumlar (0)
Karmajun 26/07/2020
Took quite a while for delivery - but then you expect that when ocean shipping is the 'fast delivery'. When it finally was in stock for shipment, it was quickly (one month) sent on its way to the USA. While it wasn't in time for my son's birthday, it did arrive two and one half months after ordering. I anticipated only 6-8 weeks....but it was a full 11 weeks from order to delivery. So why - if it took so long - did I give it such a high rating? The plane was nearly a month after my son's birthday and as soon as he got it he thought it was the boss! He went out and played with it for about an hour, getting it stuck in a tree where we had to wait for the wind to blow it out. The next morning it was out and he played again. It flies well, it flies high, and my son was very, very pleased. Thank you!
100cm Kanat Açıklığı El Fırlatma Uçağı Sabit Kanat DIY Yarış Uçağı Epp Köpük Uçak Oyuncakları
US$18.46 US$36.92
0
Tavsiyeler
Yorumlar (0)
Karmajun 20/06/2020
It looks good in the picture, and it should work for a tiny chinese person. Maybe Xi Jinping or whatever they call him. I am a large male, 6' 4" (1.93m) and this thing won't fit me. It fits my sons and my wife, but it won't it me. I have trouble keeping my back straight while on the computer - so do my children - so they can use it. It is a good value for them. It sucks for me. Maybe we can find some velcro to add to it, but it is just too short in the straps and the back portion is not long enough - heck, my armpits go lower than the back piece comfortably sits. I've purchase several phenomenal things from the land of the tiny people, but this one item truly is for tiny people. Well made, but for tiny people.
Unisex Duruş Düzeltici Ayarlanabilir Sağlık Bakım Göğüs Geri Kemer Omuz Klavikula Destek Için Brace
US$7.99 US$29.99
0
Tavsiyeler
Yorumlar (1)
Karmajun 21/05/2020
Just received this model rheostat - potentiometer, and while it appears sturdy (the box was crushed & it came out looking like it was just manufactured) the issues I have are simple. I get that the core is an insulator, and that the wiper rod is a conductor, but the base appears to be electrically connected to the wiper making layout a little more complicated. I like to model things on a grounded base-plate and I'll likely need to mount this on an insulator with a small caution emblem so my students will observe their safety rules. But then, they are students and if they get shocked, they may learn something in my class! Clearly a nicely manufactured piece, I would have put the wiper riding rod on a clear insulator bracket instead of the same metal bracket holding the windings insulation core. I will check resistance of all the parts when I set it up for demo - the black collars on the wiper rod may well be insulators - the was it is constructed there is no way other than testing to tell. I shall have a friend of mine read the manual - I know how to use an old style open winding potentiometer but perhaps the 'manual' in Chinese gives some details that my mentors who remember Tesla may have forgotten to teach me.
1 adet 10 Ohm 2A Sürgülü Rheostat Bilim Keşif Oyuncaklar Ayarlanabilir Direnç Ohmik Elektrik Devresi Fizik Deney Eğitici Oyuncak
US$10.99 US$13.99
0
Tavsiyeler
Yorumlar (0)
Arduino için UNO R3 ATmega328P Geliştirme Kurulu Geekcreit - resmi Arduino panolarıyla çalışan ürünler
US$12.99 US$15.99

Q: Does this have ATmega8 or ATmega16 usb-serial converter chip?

Soran Ashu Açık 2019-08-05 09:24:07

Karmajun I agree it uses a conversion chip such as ithas CH340G usb-serial converter chip listed above, but I can't make out the chip labels in the picture. As far as the other answer about ATmega8 or ATmega16 - I'm not so sure of your question since I haven't seen anything like the CH340G referred to by either designation. I have seen the ATmega16U2 board advertised, but I'm not sure if it is what you are asking. I do know that the other answerer is wrong to state "there are no ATmega16 versions". Check out: UNO R3 ATmega16U2 AVR USB Development Main Board Geekcreit for Arduino #ID: 68537 I hope I was able to answer in time - but you probably already found the listing of the board which some say doesn't exist.

2020-05-07 09:08:29 Yararlı (1)
Gönder
cevaplar (3)
Karmajun 02/05/2020
Prior to Coronavirus, the SARS-CoV2 that originated in the caves of China - all I wanted was for my son and wife to have working HR and Blood Pressure monitoring on their wrists. They were pleased as soon as we charged them and they put them on. When we began to have cases of SARS-CoV2 here in the USA, we looked at the HR, BP, and O2 monitors - pretty nice and close to accurate! I would not anticipate these to be medical grade at this price point - and they really aren't - but they do not vary much at all when kept charged and worn by the same person! I take my family's blood pressure when there is an issue, checking respiration, HR, and even put on a finger Pulse Oximeter - and this little watch is close enough for me. I wouldn't use it to document my findings, but if it shows an increase in HR or a drop in BP - I would investigate! I recommend this to anyone who needs to monitor their HR, BP, and O2 levels. You can certainly find more expensive and more accurate devices, but not many that are so inconspicuous and consistent. Oh - yes, I am a physician and I DO know how to monitor someone's vitals for a medical record. These are the next best things to what I carry around in my emergency kit! And a heck of a lot lighter, too!
[Ücretsiz Hediye] Bakeey P90 1.3 inç Tam Dokunmatik Ekran Bileklik Kan oksijen Kalp Oranı Monitör Hava Ekran Akıllı Izle
US$29.76 US$43.99
0
Tavsiyeler
Yorumlar (0)
Karmajun 02/05/2020
These arrived in a timely fashion and I've started using them to construct conduction testers for a science lab. They are dependable and I only checked a few values before I was convinced that they are the "real deal". My first few conduction testers worked fine - I needed these to limit the LED current and they do the job. Thanks!
2000 adet 100 Değer 1 / 4W Karbon Film Direnç KIT0155 Çeşitler Kutu Kit 20 adet Her Değer
US$12.99 US$15.99
0
Tavsiyeler
Yorumlar (0)
Karmajun 02/05/2020
These arrived in a timely fashion and I've started using them to construct conduction testers for a science lab. They are dependable and I only checked a few values before I was convinced that they are the "real deal". My first few conduction testers worked fine - I needed these to limit the LED current and they do the job. Thanks!
1000pcs 1% 1W Metal Film Direnç 100 Değerler Çeşitli Kit 1 ohm ~ 1M ohm Aralık
US$28.99 US$34.99
0
Tavsiyeler
Yorumlar (0)
Karmajun 29/04/2020
A very nice collection of leds. Not much information on them, I had to go online to locate the basics that most US manufacturers used to include with each single LED. I found the primary information just looking at the advertisement on Banggood - nominal 3V at about 20 milliamps from my memory and purchasing - but on Banggood's website they have the grid showing the forward voltage per color diode and the wavelength/intensity by color and size. There may be many good resources online - and I appreciate the up to date rules of thumb on many hobbyists websites available to all. I'll have to print off Banggood's information table and paste it to the box - like I said, the old Radioshack by Tandy electronics included a table with the information on the inside of all their electronics kits - the see through lid on these LEDs may be too small for such a table with all the data, but they could easily have installed a table with forward voltages and amperage ranges with no trouble - written in Chinese, Russian, English, French, or Spanish and everyone else would be able to figure it out. But without anything - you have to rely on old memory information when it comes with nothing included! It is inexpensive to ship without any literature - but it just looks bad for a manufacturer to package and ship without ANY information on tolerances. That is why a 4/5 on appearance.
Geekcreit® 375pcs 3MM 5MM LED Lamba Yayan Diyot Boncukları Direnç Işıkları Kitleri Ampul Lamba
US$5.99 US$7.99
0
Tavsiyeler
Yorumlar (0)
Karmajun 24/04/2020
I was thinking this would be a tiny box of tiny capacitors - not really! This box is about twice the size I thought it would be and it has the assortment of capacitors that will work well for me. Plus - unlike my used parts bin - the leads are nice and long without extra crimps already in place. A great way to prepare for the next few projects!
Geekcreit® 300pcs 10 Değer 50V 10pF - 100nF Çok Katmanlı Seramik Kapasitör Çeşitleri Kit Her Değer 30pcs
US$13.29 US$9.99
1
Tavsiyeler
Yorumlar (0)
Karmajun 24/04/2020
Awesome bargain - great way to refill my electronics 'grab bag'. I hate looking through my diminishing grab bag of recycled parts (everything is going to microprocessor boards with tiny parts too small to remove and reuse!) so this is a great relief to have this many extra diodes ready for my next circuit build.
100pcs IN4007 1N4007 DIP Doğrultucu Diyot Bileşeni Kit DIY Projeler İçin
US$4.99 US$9.52
0
Tavsiyeler
Yorumlar (0)
Karmajun 24/04/2020
Can't say much either way for these microfiber towels. I wear glasses and am always looking for anything to clear dust off of the lenses without smearing - these do the job nicely. I hope they are durable, but no matter since this price is awesome for the number of towels you get!
30 cm x 40 cm Mikrofiber Havlu Araba Detaylandırma Temizlik Soft Bezler Ev Pencere Camı
US$16.99 US$20.99
0
Tavsiyeler
Yorumlar (0)
Karmajun 24/04/2020
Great little battery balancing board - I'll have to check this out sometime on my test bench as it came with no instructions or schematics. I know what it does, it doesn't look like the board I thought I was purchasing but I'll bet it is just a newer iteration with the solder pads labeled differently. Like I said, I was going to use this by June so I'm glad it is here, I'll have to power it up and verify each solder pad before utilizing it. I'm sure it is a great balanced battery charger, but until I am certain of what pads to solder to, I have to say the appearance is too different for me to presume I have the schematic down!
4S 30A 14.8V Li-ion Lityum 18650 Batarya BMS Paketleri PCB Koruma Kartı Dengesi
US$6.99 US$13.99
0
Tavsiyeler
Yorumlar (0)
Karmajun 24/04/2020
It has been years since I've had boards with zener diodes I could unsolder and toss into my parts bin, this purchase makes the issue moot. I have plenty of zener diodes for well beyond the voltages I use, so I'm set for a couple of years. I'll use these up before they begin to have any tolerance issues - unless I find issues in the first use! I doubt it, Banggood has been reliable so far!
450 Adet 1W Zener Diyot DO-41 3V-30V 15 Değer Çeşitleri Kit Elektronik DIY Kit
US$14.99 US$26.32
0
Tavsiyeler
Yorumlar (0)

Uzmansın, yardım edebilir misin?

Sizi Davet Yanıtı e-postasına abone olmaya içtenlikle davet ediyoruz!

Abone olursanız, sizi e-posta yoluyla insanların ürünlerle ilgili sorularını yanıtlamaya davet edeceğiz. Size abone olarak] ayrıca "Yararlı Rozeti " kazanacaksınız! Gizlilik ayarları sayfasından istediğiniz zaman aboneliğinizi iptal edebilirsiniz.

Başkalarına yardım edin ve daha mutlu olun!

  • Abone ol

Rozetler Hakkında

Rozetler toplulukla ilgilidir ve kullanıcılar kaliteli içerik oluşturarak, görevleri tamamlayarak veya özel etkinliklere katılarak rozet kazanırlar. Belirli kişilerin kendi özel rozetlerine sahip olmaları gerekir.
CEO ROZETİ

The CEO ünvanı yalnızca Banggood patronuna aittir.

Kazanabileceğiniz rozetler yakında geliyor
  • TAMAM

About Badges

Badges are related to the community, and users earn badges by creating quality content, completing missions, or by participating in special activities.

Helpful Badges

The Badge is awarded to users who are subscribed to the Invite Answer email and signifies their gratitude to help others. The badge appearance upgrades as the user helps more people.
  • TAMAM

Thank you for subscribing! You have also earned a badge!

  • View It

Thank you! Your answer will help ###name### and ###num### other people!

Check awaiting answers to see more people who need help.

  • OK

Thank you! Your answer will help ###name### and ###num### other people!

Subscribe to "Invite Answer"emails and help others with product questions will earn you "Helpful Badge"!

  • Subscribe

Are you ready to help?

We invite you to subscribe to our Invite Answer email!

Subscribe and you’ll be invited to answer product’s question by email, which will also earn you a "Helpful Badge"! You can cancel any time on the privacy settings page.

  • Subscribe