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Разработочная плата ESP32 C3 RISC-V WiFi Bluetooth IoT совместима с Python
US$12.99 US$16.99

Q: The github ardunio support provided did not tell which board profile to use nor how to set up the arduino application to program the board. It looks nice, but I want to do more than look at it.

Задавает Len на 2022-02-17 06:04:29

BG217425635 You need Espressif ESP32 core for Arduino and you need the development version 2.0.2 for ESP32-C3 to work.

2022-02-18 08:18:46 полезный (1)
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Len 07/11/2020
I bought these for an A-26 Invader model I made from old Comet plans increased in size by half from 30" to 45" which made the wood sizes easier (1/16 to 3/32 for example). They look great. They were packed and shipped fast. I am very pleased with this purchase. The plane is light and I think will fly great.
8045 3 лист лезвие лопасти Пропеллер ABS CW / CCW для Квадрокоптера 330 Набор рамы для РУ Дрона FPV Гоночного многоротора
US$6.99 US$8.99
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Len 28/10/2020
These are amazing little motors. They swing an 8050 three blade prop very nicely and draw a bit over 6 amps doing it on a two cell lipo. I'm using a pair in an up-scaled Comet A26 45" span with either a 1200mah or 2200mah lipo (I may need the latter for balance. I plan to use the same power setup in an old Sterling Black WIdow.
Eaglepower GA2304 2204кВ кв2204 Внутренний дрон Мотор микро двигатели 2S-3S Бесколлекторный мотор для статического крыла RC-самолета
US$14.99 US$17.99
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4 пары электрического винта GEMFAN GF 8040 влево для радиоуправляемых самолетов с фиксированным крылом
US$9.50 US$15.59

Q: The picture is of a CCW propeller, which is it CW or CCW?

Задавает Len на 2020-09-04 05:51:48

Ulic cw

2020-10-13 09:42:58 полезный (0)
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Len 20/06/2020
These Emax servos are great deals. They are reliable, strong, metal gear, digital and don't cost a fortune. Emax are my favorite servos, from the little 4+ gram ones to these, I am very happy with the products. I purchased one of their motors recently and am waiting to receive it.
Emax ES08MDII Металлический цифровой микро-сервопривод для RC-моделей 4 шт.
US$44.99 US$63.59
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Len 20/06/2020
Nice propellers look like the old GWS which I found efficient and excellent for electric power.
Gemfan 5030 6030 7035 8040 8060 9050 1060 Пропеллер с прямым приводом
US$5.50 US$9.59
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Len 07/05/2020
Very nice, well built, some competitors have a dial adjustment that falls off, this one has two push buttons, very nice. Heats up fast.
MUSTOOL MT883 80 Вт Электрический Припой Железная станция Регулируемая температура 180-480 ℃/392-896 ℉ Автоматический спящий режим 110 В/220 В ЕС/США/Велик
US$18.99 US$23.99
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Len 13/04/2019
I have built two delta printers and supported kickstarters for several, all of which except one I was happy with. I am super pleased with this 3D printer. The major assemblies have been pre-assembled,, the packaging was superb, and I put it together in a leisurely afternoon while I was taking frequent breaks to do other things. A picture of my first test print is attached. The only advice I have is 1. Download cura 4.0 it already has an entry for the Creality Ender 3. The approach I used was to drop a stl file on Cura after setting it to 0.1 fine and save it to the sd card included with the printer. 2. The Y-axis end stop needed to be loosened and moved as far forward as it would go. It is in a fixed position, but there is a bit of slop. 3. The X-axis belt roller on the right needed to be moved out to take up the slack in the belt, but at the same time up as far as it would go so the belt didn't rub on the rail. Other than that it went together remarkably easy and the printing results were very very good. Not only is this a very nice printer (as long as you are ok with 8.67" square and 9.84" tall which is fine for what I have been printing) but, it includes all the tools you need to put it together (and a few you don't) and some spare bolts, zip ties, nozzle, and fitting for the boden tube. All in All a very fine printer and the price is just icing on the cake.
Принтер Creality 3D® Ender-3 с размером печати 220x220x250 мм и функцией продолжения печати при отключении питания
US$269.00 US$499.00
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Len 07/02/2019
Pay attention to the polarity of the center pin on the power cable. My guitar pedal is center pin negative and this power adapter is center pin positive.
US 9V Адаптер питания с эффектом гитары с 3-мя контактными кабелями Splitch для босса PSA-240
US$8.61 US$11.75
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Len 14/03/2019
I first bought the 4" speakers for a project, but was so pleased that I bought these 6.5" speakers. They are the same price for the 4,5 and 6 inch size. The quality is really nice. they have four different speakers which I thought would have made them 4 way, but I need to research that. The cones for the big speakers are poly. Of the speakers I have worked with (JBL, Kenwood and these Planter) these stand out, a real value for the price.
2Pcs 4 дюймов 5 дюймов 6 дюймов 12V 2-полосный коаксиальный Авто Акустические системы Замена аудио музыкального автомобиля
US$35.58
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Len 30/03/2019
Kit was missing the 78L09 voltage regulator, but other than that it looks like a nice kit. I ordered 15 from ebay for $3 including shipping. Guess I will add the other 14 to my parts box.
Набор для самостоятельной сборки многофункционального генератора низкой частоты сигнала ICL8038
US$17.99 US$21.99
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Len 18/03/2019
A little jewel, looks as good as it sounds. It is powered by five volts and outputs audio thru an audio jack. It has buttons for increasing and decreasing volume and going back and forth in the media. I haven't tried the FM yet, I'll need an antenna for good reception, but provision has been made to undo one screw on the top and thread in a common little telescoping antenna. It sounds great with good headphones and it should feed an amp with speakers fine, but I haven't tried it yet.I use the phone to feed it, just mate it to the bluetooth and fire up your music app, I use VLC which decodes FLAC and also has a great equalizer.
APP Control Wireless Bluetooth Audio Приемник Board 4.2 Bluetooth Усилитель Board With Shell
US$11.99 US$14.99
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Len 14/03/2019
These work great for application using syringes like solder paste and flux.
10шт диаметр 0,9 мм универсальный тупой наконечник иглы для шприца
US$1.96
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Len 14/03/2019
Very nice quality boards for prototyping and building one off projects.
5шт FR-4 Универсальная двухсторонняя прототипная печатная плата 7см x 9см
US$9.99 US$11.99
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Len 14/03/2019
Very nice boards for low volume prototyping and projects.
Geekcreit® 10шт 40x60мм FR-4 2.54мм Двухсторонняя прототип PCB печатная монтажная плата
US$8.99 US$10.99
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Len 26/02/2019
I put these in some 3D printed enclosures and fed it from the little SANWU TPA 3110 with a 12 volt 2 amp power supply and I thought they sounded fantastic. Better than any computer speakers I've had.
2Pcs 4 дюймов 5 дюймов 6 дюймов 12V 2-полосный коаксиальный Авто Акустические системы Замена аудио музыкального автомобиля
US$35.58
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Len 26/02/2019
Works great. I am using it for a guitar pedal I built from an Electrosmash kit.
Мега2560 R3 ATMEGA2560-16 + CH340 Модульная плата разработки Geekcreit для Arduino - продукты, которые работают с официальными платами Arduino
US$22.99 US$25.99
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Len 26/02/2019
Nice, I'm feeding it from an older Lenovo which I use as a music box. The app is VLC and the decoding is FLAC. Sounds super good with a pair of the Planter 4" car speakers in a homemade 3D printed enclosure. This is so tiny that I could just put it in one of the speakers. A 12 VDC 2 Amp walwart is fine for power. I am really impressed by the sound. I did have to use the VLC equalizer to turn down the high freq, but the sound is really clear. A good test song is "Money". ca-ching, a real value IMO. Smaller than what I expected. I could install the usual terminal block for connecting power, but the speaker pads were too close. I had to solder the speaker wire to the board. 18 gauge was too big. If they were spaced like the power pads, Three terminal blocks could be installed for the speakers and power.
SANWU® TPA3110 DC 10V-25V 2x15W Двухканальная беспроводная связь Bluetooth Audio Power Усилитель Плата для динамика 4/6/8/10 Ом
US$12.99 US$16.99
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TPA3116 2.1 50Wx2 + 100W bluetooth CSR4.0 Class D Power Усилитель With Acrylic Чехол
US$30.99 US$37.99

Q: What is the functions of the four adjustable pots?

Задавает Len на 2019-02-21 01:50:43

wujiahui Potentiometer function: 1. Bass volume 2. Left and right channel treble 3. Left and right channel volume 4. Total volume.

2019-02-21 07:59:42 полезный (0)
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Len 17/02/2019
Nice sounding amp. Drives two 5 1/4 inch speakers for a car very nicely.
Kentiger ™ HY502 Blue 12V 40W Hi-Fi LED Авто Стерео Усилитель
US$28.00 US$33.60
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