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ESP32 C3 開発ボード RISC-V WiFi Bluetooth IoT 開発ボード Python と互換性あり
US$11.99 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.

尋ねた Len に 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 役に立つ (1)
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回答 (1)
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 8x4.5 8インチ3ブレードプロペラABSクワッドコプター330フレームキット用CW / CCW RCドローンFPVレーシングマルチローター
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 2204kv kv2204 インドアドローンマイクロモーター 2S-3S ブラシレスモーター 固定翼 RC プレーン航空機用
US$14.99 US$17.99
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RC飛行機固定翼用の4ペアGEMFAN GF 8040 CCW反時計回りの電動プロペラ
US$9.50 US$15.59

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

尋ねた Len に 2020-09-04 05:51:48

Ulic cw

2020-10-13 09:42:58 役に立つ (0)
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回答 (1)
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.
RCモデル用Emax ES08MDIIメタルデジタルマイクロサーボ4つセット
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 Direct Drive Propeller
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.
MustOOLMT88380W電気はんだごてステーション調整可能温度180-480℃/392-896℉オートスリーピング110V/220V EU / US/UKプラグオプション
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.
Creality 3D® Ender-3 3Dプリンター220x220x250mm印刷サイズ、パワー再開機能付き
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ボスのための3ウェイスプリットケーブル付きの9Vギターエフェクト電源アダプタ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インチ5インチ6インチ12V 2ウェイ同軸カースピーカー交換オーディオ音楽車両
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.
DIYマルチ機能低周波信号発生器キットICL8038信号発生器
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制御ワイヤレスBluetoothオーディオレシーバボード4.2 Bluetoothアンプボード（シェル付）
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.
シリンジインジェクター用の10個の0.9mm直径ユニバーサルブラントチップフィルニードル
US$1.96
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Len 14/03/2019
Very nice quality boards for prototyping and building one off projects.
5個FR-4ユニバーサル両面プロトタイプPCBボード7cmx 9cm
US$9.99 US$11.99
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Len 14/03/2019
Very nice boards for low volume prototyping and projects.
Geekcreit®10個40x60mm FR-4 2.54mm両面プロトタイプPCBプリント回路基板
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インチ5インチ6インチ12V 2ウェイ同軸カースピーカー交換オーディオ音楽車両
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.
Mega2560 R3 ATMEGA2560-16 + CH340モジュール開発ボードGeekcreit for Arduino - 公式Arduinoボードと互換性のある製品
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®TPA3110DC10V-25V2x15WデュアルチャンネルワイヤレスBluetoothオーディオパワーアンプボード4/6/8/10オームスピーカー用
US$12.99 US$16.99
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TPA3116 2.1 50Wx2 + 100W Bluetooth CSR4.0 Class Dパワーアンプ、アクリルケース付き
US$30.99 US$37.99

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

尋ねた Len に 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 役に立つ (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カーステレオアンプ
US$28.00 US$33.60
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