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Tag Archives: motor

Maker-First steps in electronics-The moving, rotating and lighting Mini-Brush

Maker-First steps in electronics-The moving, rotating and lighting Mini-Brush

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The moving, rotating and lighting Mini-Brush

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The moving, rotating and lighting Mini-Brush

In OUR previous electronics projects WE were tinkering around with vibration motors and flashing LEDs, well we will continue on the same schema to get a bit more soldering practice and to discover ALSO the use of heat shrink tube, accumulators and drinking straws. This is ALSO a soldering exercise with some fun, and knowledge acquirement as usually in my tutorials. WE will learn also about accumulators, rechargeable batteries. Using accumulators instead of batteries will save us a lot of money and it is ALSO providing LESS RECYCLING! 😉 WE do something GOOD for the nature <===> Sustainability!!


OHM’s Law, resistors and LEDs

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led-symbols

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As WE are using a 9 Volts accumulator (rechargeable battery) this time together with a LED, WE need to put a resistor in series to the LED to protect it.As

Learn more:

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led-symbols-anode-and-cathode.

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Practical Tip: LEDs are transparent, so the Cathode (Minus) looks always a bit larger as the Anode (Plus).

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When working with electronics WE need to learn a bit theory and mathematics, BUT DON’T worry, it is very easy! First of all which is mandatory, is the “OHM’s Law“. YOU DON’T need to calculate! 😉 There is an online calculator who will do the job for YOU! Click the image below please to access the online calculator and play a bit around with it to get used to it, have fun.

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ohms-law-calculator

Click the image please to access the online calculator

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Let us make OUR calculation for the resistor: WE have a power supply of 9 Volts and the used LED has a maximum of 3 Volts while its current is 20 mA (milli Ampere). Thus meaning: 9 Volts – 3 Volts is 6 Volts which need to get dropped away from the LED to NOT destroy it! SO, on the resistor 6 Volts need to get derived away from the LED. Let us NOW convert the 6 Volts to milli Volts which gives us 6,000 mV. AND as R = U/I <===> 6,000 divided by 20 is 300! The resistor MUST have a value of 300 Ω, next standard value is 330 Ω!

WHEN YOU use the above online calculator YOU SHOULD give the values in VOLT and in Ampere; or WE have 20 mA which is 0,020 A. Check the online calculator below please:

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resistor-calculating-for-leds

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Useful online help:

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WHAT are accumulators and WHAT’S different from batteries?

Please read the below articles to understand:

 

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The schematics of our project

Here below the schematics where YOU will see how the components are represented; ONLY five (5) parts.

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moving-rotating-lighting-mini-brush-schematics-screenshot

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 Detailed parts list, supplier and prices

Please find below the detailed parts list as well as the supplier and the prices.

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Item and quantity

Supplier and order number

Price

1 x Mini-Brush CACTUS (Supermarket) 2,50€
 A bit heatshrink tube 0,50€ 
1 x Switch CONRAD: 701351-62 1,09€
1 x 9 Volts accumulator CONRAD: 251290 – 62   11,99€

1 x 9 Volts Motor from Adafruit

 Adafruit: ID 711

 1,84€
1 x 5mm flashing LEDs from Adafruit pack of 10 is $4.95 Adafruit: ID 680 0,50 €
 Just for fun: a plastic mouse CACTUS (Supermarket) 5€
 Total:  without the plastic mouse 18,42€ 
with plastic mouse  23,42€ 

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As you can see it is a very cheap project, ONLY 18,42€ and easy to realize! ALL what YOU need is a bit time, passion and here we GO! 😉 Have FUN!

Online ordering links:


The tools needed

Check below please WHAT the tools are that you will need for this project. The small saw is needed to cut off the handle of the mini brush.

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tools-list-electronic-arts

Click image please to enlarge.

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Working with heat shrink tube

[START text from Wikipedia] Heat shrink tubing (or, commonly, heat shrink or heatshrink) is a shrinkable plastic tube used to insulate wires, providing abrasion resistance and environmental protection for stranded and solid wire conductors, connections, joints and terminals in electrical work. It can also be used to repair the insulation on wires or to bundle them together, to protect wires or small parts from minor abrasion, and to create cable entry seals, offering environmental sealing protection. Heat shrink tubing is ordinarily made of nylon or polyolefin, which shrinks radially (but not longitudinally) when heated, to between one-half and one-sixth of its diameter. [END text from Wikipedia]

Learn more:

Watch the video below please to see the How-To to work with heat shrink tube.

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Optimizing the design

I first started to make a normal cabling and the mess I saw didn’t make me feel proud and comfortable, there was something embarrassing! I looked around on my working bench and I discovered some drinking straws which I bought (can’t remember for what, bought them as I was feeling to do so…). I took one and was plying it and suddenly the idea was there to hide the cables inside and WHY NOT to incorporate a super bright LED: the idea was born 😉

The moving, rotating and lighting Mini-Brush 

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The video of our project

Check the video below please:

 

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Keywords necessary for me to create this blog post: instant glue, hot glue, 9 Volts Mini-Motor, resistors in series for LEDs, LED, switch, schematics, drinking straws, unbalance, hexagonal nut, hiding cables in drinking straw (Design Thinking), creativity, accumulators and batteries (difference), …

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GUST-AVRIL2014-800px-2L’auteur Gust MEES est Formateur andragogique / pédagogique TIC, membre du “Comité Conseil” de “Luxembourg Safer Internet” (LuSI), appelé maintenant BEESECURE, partenaire officiel (consultant) du Ministère de l’éducation au Luxembourg du projet  ”MySecureIT“, partenaire officiel du Ministère du Commerce au Luxembourg du projet ”CASES” (Cyberworld Awareness and Security Enhancement Structure). L’auteur était aussi gagnant d’un concours en électronique en 1979 ( Pays germaniques ) et voyait son projet publié dans le magazine électronique “ELO”.


The author Gust MEES is ICT Course Instructor, ”Member of the Advisory Board” from “Luxembourg Safer Internet” (LuSI), BEESECURE, Official Partner (Consultant) from the Ministry of Education in Luxembourg, project “MySecureIT“, Official Partner from the Ministry of Commerce in Luxembourg, project “CASES” (Cyberworld Awareness and Security Enhancement Structure).

The author was also a winner of an electronics contest (Germanic countries) in 1979 and got his project published in the “Electronics Magazine ELO”).

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Stay tuned for next blog post(s) 😉

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Maker-First Steps in Electronics-The rotating and moving plastic container

Maker-First Steps in Electronics-The rotating and moving plastic container

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Rotating and moving plastic container

 

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The rotating and moving plastic container

Half Square Nut as unbalance

Click image please to enlarge.

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In previous blog post (tutorial) WE used a vibration motor from an old smartphone and we were learning also about the How-To about a vibration motor is working; it is about “Unbalance“. This unbalance is normally unwanted for motors, but for vibration motors it is a MUST. The motor we used was a 3 Volts motor and very small. In THIS NEW project we will use a 9 Volts DC-Motor and we will create from a normal motor a vibration motor with a little trick.

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Square Nut

Click image please to enlarge.

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We will use a square nut and saw it in the middle, then taking the hot glue pistol and gluing it (one half) on the shaft of the 9 Volts DC-Motor.

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Learn more:

9 Volts DC Motors are actually very cheap, check below please:

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Let us have a look on the unbalance and vibrations motors

A vibrating motor is essentially a motor that is improperly balanced. In other words, there is an off-centered weight attached to the motor’s rotational shaft that causes the motor to wobble. The amount of wobble can be changed by the amount of weight that you attach, the weight’s distance from the shaft, and the speed at which the motor spins.

Learn more:

 

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vibration-motor

Click image please to access the article.

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The schematics

Let us first have a look on the schematics where WE will discover some NEW stuff, a mini motor; in this case it is an “vibration motor“.

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moving-plastic-containe-schematics

Click image please to enlarge

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VELCRO.

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As you can see there is NOTHING special; we just put five (5) elements (4 flashing LEDS, a vibration motor) in parallel. The motor will get fixed with hot glue on the bottom. And we have a switch to switch on/off our circuit. As battery we use a 9 Volts battery which will get fixed with “VELCRO” on the bottom.

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Learn more:

Calculating the resistor value with a 9 Volts battery and knowing that the flashing LEDs will be 3 Volts and consuming 20 mA. SO: 9-3=6 Volts which will get needed to take away from the LEDs. Check below please:

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led-series-resistor-calculator

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The shown value is 300 Ohms, but that is NOT a standard value. We will use a 330 Ohm resistor, as it is a standard value.

Useful online help:

 


The tools needed

Check below please WHAT the tools are that you will need for this project. The small saw is needed to cut out a small piece of 55 x 45 mm from the stripboard. That part is needed for soldering the resistor and the switch and is used to make the necessary connections to the other parts.

 

 

tools-list-electronic-arts

Click image please to enlarge.

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steinel-neo1-hot-glue-pistol.

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Concerning the hot-glue pistol which you need as well, I recommend the one from “STEINEL” as it is a Cordless all-purpose glue applicator. Neat, practical, accurate. Cordless hot-melt glue pen neo1 for all gluing jobs around the home, particularly lightweight and practical, cordless gluing with rechargeable Li-Ion battery, ready for gluing in 15 sec.

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Learn more:

The price is around 35€, but worth to spend that money, comfortable precise working…

 


The Parts List

As mostly usual in my tutorials, WE will create on the beginning ONLY small stuff with some effects and a little bit of theory to give YOU the fun and the sense for electronics. SO, in this project there also ONLY a few components, such as: 9 Volts DC-Motor, Flashing LEDs, 1 resistor, 1 switch, a 9 Volts Battery, a plastic container (actually a Ricotta Cheese plastic container).

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Item and quantity

Supplier and order number

Price

1 x Stripboard CONRAD: 529531 2,19€
VELCRO tape  +/- 10 cm needed à 16,99€/1 m CONRAD: 546887  1,70€

1 x Empty plastic container +/- 10 cm diameter

1 x Switch CONRAD: 1377837 2,19€
1 x 9 Volts battery CONRAD: 658014  3,99€

1 x 9 Volt Battery Clip

 CONRAD: 624691

 0,44€
4 x 5mm flashing LEDs pack of 10 is $4.95 ADAFRUIT: ID 680 2,40€
1 x Flat Bandcable CONRAD: 604069  0,30€

1 x 9 Volts DC-Motor

 ADAFRUIT: ID711 1,95 
 1 x Resistor 330 Ohm

4 x LED clips 5 mm 100 pces is 9,99€

 CONRAD: 405191

CONRAD: 185806

0,10€ 

0,40€

 TOTAL: 15,66€ 

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As you can see it is a very cheap project, ONLY 15,66€ and easy to realize! ALL what YOU need is a bit time, passion and here we GO! 😉 Have FUN!

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The video of the project

Please check the video below to see it in action.

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GUST-AVRIL2014-800px-2L’auteur Gust MEES est Formateur andragogique / pédagogique TIC, membre du “Comité Conseil” de “Luxembourg Safer Internet” (LuSI), appelé maintenant BEESECURE, partenaire officiel (consultant) du Ministère de l’éducation au Luxembourg du projet  ”MySecureIT“, partenaire officiel du Ministère du Commerce au Luxembourg du projet ”CASES” (Cyberworld Awareness and Security Enhancement Structure). L’auteur était aussi gagnant d’un concours en électronique en 1979 ( Pays germaniques ) et voyait son projet publié dans le magazine électronique “ELO”.


The author Gust MEES is ICT Course Instructor, ”Member of the Advisory Board” from “Luxembourg Safer Internet” (LuSI), BEESECURE, Official Partner (Consultant) from the Ministry of Education in Luxembourg, project “MySecureIT“, Official Partner from the Ministry of Commerce in Luxembourg, project “CASES” (Cyberworld Awareness and Security Enhancement Structure).

The author was also a winner of an electronics contest (Germanic countries) in 1979 and got his project published in the “Electronics Magazine ELO”).

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Keywords necessary for me to create this blog post: Bandkabel, Unbalance explication, DC Motors, vibration motors,

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Stay tuned for next blog post(s) 😉

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