"5 volt limit" circuit? Answered

Is there a circuit that will take a range of voltages and make all of the voltages that are over 5 volts be 5 volts  like so: 3.5 => 3.5  4.2 => 4.2 4.9 => 4.9 5.1 => 5.0 6.3 => 5.0

Asked by flybye22 8 years ago  |  last reply 6 years ago


Potential $5 RC Hovercraft

Hey y'all, I was bored, so I made this RC hovercraft, kinda like a Tiny Whoov, from the guts of a $5 RC helicopter (sold at most FiveBelows). The idea is that a hovercraft is more fun than a cruddy helicopter, in addition to being a fun and easy DIY project for the weekend. It could be a nice gift to a kid. My first concern was that the motors would not provide enough power to get the thing moving. They give more than enough power, and this thing can MOVE. My second concern is that the differential thrust steering system (one motor turns faster than the other, steering the hovercraft) would not be effective enough. This is still a problem that I don't have the enthusiasm or time to solve anymore. Maybe someone could figure out how to reprogram the FC board to have more differential thrust (is that possible?), or somehow configure a servo or actuator without raising the cost of materials too much. Anyway, here's the concept, go have fun with it.Supplies:Foam platesHot glue$5 RC helicopter with 2 motors and receiver (LED optional, but really cool)Connector (the battery might be soldered directly to the FC board, so this will make it easier to fiddle with)Soldering iron (not %100 necessary, but it can come in handy)Propellers (see design notes)Design notes:Notice how the underside of the hull is curved and smooth. I used propellers from a Blade Inductrix FPV Pro, but any micro quad propellers should work. Notice the nice little compartment under the FC board where you can stick a battery without the need for Velcro or glue. This would be a very easy FPV mod, but that would add about $20 to the cost.

Posted by Thorondor95 10 months ago


Li-ion 5 pin, pinout?

Good Day Fellow TinkerersI have a battery that came out of a Android Tablet that i want to use for another project.It has a cuircuit board attache to the top which i would assume is a over/under charge protector and it has 5 wires coming off of that. 2 x Red, 1 x White and 2 x Black.The two black wires are connected to the same pad on the "protection circuit" and the two red are connected to the same pad. The white wire is on a separate pad i.e. 3 pads, 1 with 2x red, 1 with 2 x black and 1 with 1 x white.I figure the Red would be positive and the Black negative and then i would assume that the white is the Thermistor connection.My Question :How do i connect this externally from the tablet to charge? I figure red and black are the usual, but how do i connect the white wire?Thanks in advance for any help :)

Posted by GhengisKhan1981 7 months ago  |  last reply 7 months ago


Paper Airplane Contest 5 (Closed)

Although my previous PAC4 competition failed to attract any entries, I have decided to reboot it—with relaxed specifications. Paper Airplane Contest 5 (PAC5) takes a step back, decreasing the minimum range requirement by 10%, and the decreasing the longevity requirement by 33%. I specifically designed this contest to appeal to the concerns of those who analyzed the specifications of PAC4. For this contest, the specification is again for a long range plane. Requirements: 1. Aircraft Requirements: • Ability to fly at least 50 feet from a launch height of 5 feet or higher • Durability to fly at least 20 flights • Provisions for landing gear and/or skids (not required for flying wings) • Use of less than 8 inches of Scotch tape in construction • Use of less than 3 pieces of 8.5 by 11 inch (A4) paper in construction • Usage of glue or wood (excluding toothpicks) is prohibited • Aircraft must be named 2. Instructables Requirements: • 1 page strictly devoted to materials required in construction • 1 page explaining how to fly the aircraft • The instructable's license must be: "Attribution Non-commercial Share Alike (by-nc-sa)" • This sentence and link must be displayed on your entry's intro page: “This instructable is an entry in Paper Airplane Contest 5 (https://www.instructables.com/community/Paper-Airplane-Contest-5/)” Prizes: For this contest I will award the publishers of the top 5 performing paper airplanes* one patch each. However, unlike previous contests, each patch will feature its respective aircraft, rather than medals. The first place winner will also receive a 3 month Instructables Pro membership. *Multiple entries are allowed. To keep the distribution of patches wide however, each entrant can only win one prize. How to Enter: To enter this contest, you must send me a private message entitled “My Paper Airplane [Member Name Here]” with your instructable's URL included. I will then put the link and author's name onto a list on this topic under "Entries". Judging: For this contest, I have decided that I will judge all the planes myself based on abilities. I have decided this way because I believe judging on performance rather than shape is a more objective approach. The contest begins Friday, May 27, 2011 and ends Thursday, June 30, 2011. Entries must be published before Thursday, June 30, 2011. From July 1 to July 3, I will be judging all entries. I will announce the winners of the contest on Tuesday, July 5, 2011 and issue them their prizes Wednesday, July 6, 2011. Entries: DJ Radio: "Super Bullet" (https://www.instructables.com/id/The-Super-bullet-Possibly-the-fastest-paper-air/) The Skinnerz: "Goose" (https://www.instructables.com/id/Goose-Paper-Glider/) heavyfire88: "The 50 Calb." (https://www.instructables.com/id/The-50-Calb/) Results: 1st Place: “heavyfire88”: “The 50 Calb.” (https://www.instructables.com/id/The-50-Calb/) 2nd Place: “DJ Radio”: “Super Bullet” (https://www.instructables.com/id/The-Super-bullet-Possibly-the-fastest-paper-air/) 3rd Place: “The Skinnerz” “Goose” (https://www.instructables.com/id/Goose-Paper-Glider/)    

Posted by OrigamiAirEnforcer 7 years ago  |  last reply 7 years ago


What is your favorite flavor of 5 gum

Please vote on your favorite flavor of 5! : P

Posted by Charger_06 11 years ago  |  last reply 7 years ago


Amplify 1.5v DC to 5+v DC?

Hi, Anyone know if I can amplify 1.5v DC to 5+v DC (pretty much any value over 5 works) using the LM358 IC (https://www.sparkfun.com/products/9456)? The datasheet (http://www.sparkfun.com/datasheets/Components/General/LM358.pdf) specifies the power supply range as 3V to 32V however the input voltage range is -0.3V to 32V (top of datasheet page 2). I've done some googling but I'm still not sure about the difference between these two.  Any tips or links on wiring this guy up would be awesome, Thanks!

Posted by sciguy77 6 years ago  |  last reply 6 years ago


ESP8266-01 DTH22 5 minute Delay?

Hi, I want to add a DHT22 sensor node to my Openhab setup. A simple way to do this is by using a ESP8266-01; I have a few around. I use the Arduino 1.6.5 IDE since that is what I have. I am having problems with the timing of the loop: I do not need readings every minute or so, 5-10 minutes is more then enough; I do not need that much data. I also want to run the node on batteries in the future so less transmissions is what I want. However, when I use a delay of more then approx. 24000 mils the ESP stops working, lower values are no problem.  I have tried several approaches, none work. Can anyone help me out? The sketch I use is below, you can see what I tried in the comments: #include #include #include const char* ssid = "Yggdrasil"; const char* password = "XXXXXXXXX"; char* topic_t = "openhab/esp8266-1/temp"; char* topic_h = "openhab/esp8266-1/vocht"; char* server = "192.168.X.X"; String clientName = "esp8266-1"; //time peter, idea taken from https://www.safaribooksonline.com/library/view/arduino-cookbook-2nd/9781449321185/ch12.html const long oneSecond = 1000;  // a second is a thousand milliseconds const long oneMinute = oneSecond * 60; const long fiveMinutes = oneMinute * 5; //time peter #define DHTPIN 2 // what pin we're connected to #define DHTTYPE DHT22 // DHT 11 DHT dht(DHTPIN, DHTTYPE,15); WiFiClient wifiClient; PubSubClient client(server, 1883, callback, wifiClient); void callback(char* topic, byte* payload, unsigned int length) { // handle message arrived } void setup() { Serial.begin(115200); delay(10); dht.begin(); Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); Serial.println("IP address: "); Serial.println(WiFi.localIP()); Serial.print("Connecting to "); Serial.print(server); Serial.print(" as "); Serial.println(clientName); if (client.connect((char*) clientName.c_str())) { Serial.println("Connected to MQTT broker"); Serial.print("Topic is: "); Serial.println(topic_t); Serial.println(topic_h); } else { Serial.println("MQTT connect failed"); Serial.println("Will reset and try again..."); abort(); } } void loop() { float h = dht.readHumidity(); float t = dht.readTemperature(); if (isnan(h) || isnan(t)) { Serial.println("Failed to read from DHT sensor!"); return; } static int counter = 0; String payload ; payload += t; //payload += ":"; //payload += h; String payloadh ; payloadh += h; if (client.connected()){ Serial.print("Sending payload: "); Serial.println(payload); if (client.publish(topic_t, (char*) payload.c_str())) { Serial.println("Publish ok"); } else { Serial.println("Publish failed"); } //peter if (client.connected()){ Serial.print("Sending payload: "); Serial.println(payloadh); if (client.publish(topic_h, (char*) payloadh.c_str())) { Serial.println("Publish ok"); } else { Serial.println("Publish failed"); }} //peter } else { if (client.connect((char*) clientName.c_str())) { Serial.println("Connected to MQTT broker"); Serial.print("Topic is: "); Serial.println(topic_t); Serial.println(topic_h); } } // delay (20000); //WORKS FINE // delay(5*60*1000); //STOPS AFTER FIRST READING AT STARTUP delay(fiveMinutes); // STOPS AFTER FIRST READING AT STARTUP }

Posted by PetervdPol 3 years ago  |  last reply 3 years ago


i want to make a cat 5 to usb cable

I want to make a cat 5 to usb cable

Asked by 9 years ago  |  last reply 6 years ago


How to increase an output of 5 volts to 9 volts?

I have a fixed input and the output is 5 volts. What type of design must I create to increase my output voltage to 9 volts with the already given output of 5 volts? I am trying to make this charger project as small in size as possible. Any assistance with this would be great. Thank you all!

Asked by fr3dd4 4 years ago  |  last reply 4 years ago


how do you override system error 5?

I tried to hack the password but it said access denied system error five

Asked by 9 years ago  |  last reply 10 months ago


What is a suitable portable power supply for 5 servos?

For a project 5 servos are needed. Currently I am thinking of using a 9V battery to power them, but several articles say that the 9V would not be sufficient or it would destroy the servo. Some articles claim that using a voltage regulator would work, others say to use a higher power battery preferably a LiPo battery. The servos used are 5 Micro Servo SG90 servos. So if a 9V could be used what is the appropriate method? If instead of using a 9V battery a LiPo should be used what should the power of the battery be?

Asked by Itec 2 years ago  |  last reply 2 years ago


120 volt ac to 5 volt dc circuit?

How to build the circuit that is in those devices that plug into 120 volt receptacle and can have a usb charger cable plugged into it. I just need the circuit diagram. I am a little familiar with schematic reading. It all fits in that little plug in device, so it can't be that much, right?. Thanks.

Asked by stevecinstrfme 4 years ago  |  last reply 1 year ago


How to get 5 volts from 4xAA batteries?

Hi all! Whats the best way to get a nice circuit friendly 5 volts from 4xAA batteries? Measuring some brand new AAs, they're about 1.6v when new, which drops under load, I know. So four AAs of course add up to 6.4v, possibly blowing my low current circuit. And isn't a 7805 voltage regulator only good with aroundabouts 7-8 volts source because of how they work? Plus DC-DC converters are expensive, and resistors are wasteful. :-) Thanks!

Asked by Heliosphan 8 years ago  |  last reply 6 years ago


Can I power a monitor from 5 volts?

Even if I have to open it up can I run this on 5v using a buck converter or by modding the screen? The screen is a RCA DRC69702 that came with a dvd player and all I want to is power it freom a two port battery. one port will be hooked up to the monitor and one to the raspberry pi.

Asked by nerd7473 4 years ago  |  last reply 2 years ago


COD 5 Nazi Zombie Cheats/Glitchs for PC

Here I will show you the cheats in Nazi-Zombies. These cheats will not work in multi-playerAt the main menu go to options, then game options. Enable the console.You can either (if you've already beaten the game) go to mission select and click zombies. Or, If you haven't then go to the main menu and type, "Devmap nazi_zombie_prototype". Now your in the Nazi zombie mission.Cheats: ( you must type them in the console)God mode= GodInf ammo = sf_use_ignoreammo 1all the guns ever (and some not in the game)= giveallspectate mod= ufoany # gravity= g_gravity #Insane speed= g_speed 900 (or any number)And much, much more...I hope this video will help!

Posted by happybirthday 9 years ago  |  last reply 7 years ago


eBook downloads in Firefox 4, 5, 6, AND 7

I am hoping I am not the only one with this issue: The new ebook downloads are currently very difficult to download in Firefox here. In Firefox 4-6, the links that should show up are covered almost completely by the text box above them, leaving a two pixel high sliver that can be clicked on. This makes it very hard to download the ebooks in Firefox. In Firefox 7, the buttons are mostly covered. You cannot read the text, but you can at least tell the buttons are there, as a 10 pixel high orange stripe appears. The links work normally in other browsers I have installed (Iron, Opera), as well in Firefox 3.6.x (confirmed from another user's computer). I've attached a screenshot that exemplifies this issue. For reference, I'm doing this on Windows 7 x86, SP1. Display resolutions are 1600x900 pixels for secondary, 1900x1080 pixels for primary. 96 DPI - nothing strange here. I have gone as far as reinstalling the operating system, with no change. I also have a Linux machine running Firefox 7, on which I cannot replicate this issue, even with the same set of add-ons installed to it. On Windows: Current browser: Mozilla/5.0 (Windows NT 6.1; rv:7.0.1) Gecko/20100101 Firefox/7.0.1 On Linux: Current browser: Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20100101 Firefox/7.0.1 Update: This issue has persisted for four full versions of Firefox, and STILL hasn't been addressed by staff. This is why I let my Pro subscription lapse, and don't want to renew it.

Posted by Xial 7 years ago  |  last reply 7 years ago


测试5

测试5测试5测试5测试5测试5测试5测试5bai du

Posted by sechism 4 years ago


Wire a RCA Cable To A 5 pin mini USB Connector?

Wire diagram to Wire a RCA Cable To A 5 pin mini USB Connector

Asked by zeferjohn 2 years ago  |  last reply 5 months ago


wwich is better 5 minute choclate cake or mug brownie? Answered

Asked by mman1506 9 years ago  |  last reply 8 years ago


2 ohm 1/2 watt 5% Resistor - Replacement

I'm trying to find what 2 resistors I could use in parallel to replace a single 2 ohm 1/2 watt 5% resistor. E24 series. Red/Black/Gold/Gold Thanks,

Asked by Howard_S 5 years ago  |  last reply 5 years ago


9 volt battery to power 5 watt tube amp

I searched for so long for the internet to answer me and nothing i want an inverter that will take a 9 volt battery and power a 5 watt tube amp. the amp is handwired, there's no circuit board and i want to believe its possible

Posted by ethan.heil 5 years ago  |  last reply 4 years ago


How to use momentary switch to blink a led for 5 sec? Answered

Hello, I'm not able to find cheap toggle switch button waterproof that just on/off my blinking led but a 5sec timer can do it.  I'm currently using this to make the led blink : 9014 transistor, LED 5mm, 30K resistor, 510ohm resistor, 22uf capacitor. I want to add momentary switch to make it blink for 5-7sec. Thank you

Asked by FrançoisB14 2 years ago  |  last reply 2 years ago


What's the best way to lower 6 volts to 5 volts?

Hey friends!  I have a question. I want to be able to use 4 AAA batteries (6v) to power an IC. The IC's max voltage is 5.5. Is there any kind of way I can use two resistors as a voltage divider to lower the voltage 1 volt or should I just use a diode(which would lower it by 1.4v)? Thanks!

Posted by HavocRC 5 years ago  |  last reply 5 years ago


5 mm led's 8 LUMENS PER WATT!?!?!? [answered] Answered

Well i was thinking, 5mm LED's take about 1/10 of a watt, correct?  and from this calculator found out Cree 5mm led's are .806 lumen's. i assume they are 1 tenth of a watt. well, my calculator states they are 8 lumen's per watt (if i could run them at a watt.)  i figure they are 1/10 of a watt because because this 500 led light makes takes about 50W as in the video and led's give less than a lumen of light. so far, it seems leds just last long and emit blueish light. is incandescent light better? with 20 lumens per watt from halogen?

Asked by -max- 7 years ago  |  last reply 6 years ago


5 voltages?

What are the top 5 voltages we deal with in the U.S.?

Asked by erik30 8 years ago  |  last reply 8 years ago


5 volts ballast

Can I have the circuit for the 5 volts cfl lamp ballast. Please! Thanks.

Posted by remyjovero 4 years ago  |  last reply 4 years ago


Ipod touch 5

So all the talk and youtube videos are making apples ipod touch 5 look amazing. With 5 color choices, a-5 chip, siri, better battery, better cameras, and so much more it is got to be great. So i say all that to ask when it comes out "Will you buy it".

Posted by ThePregergater 6 years ago  |  last reply 3 years ago


Making a wifi powered cat 5 cable.

Is that possible?

Posted by furrysalamander 7 years ago  |  last reply 7 years ago


Does anyone have an EagleCAD library for the 5-pin TO-220 package? Answered

I am designing a PCB in Eagle and but I need to use an IC that is in a 5-pin TO-220 package and Eagle does not have PCB layouts for this.

Asked by UbuntuNinja 9 years ago  |  last reply 8 years ago


[Already Fixed] Rollback changes for instructable with views: 843566 rating: 5

I have a very popular instructable, with 844k views and 5 star rating: https://www.instructables.com/id/Teardrop-Trailer/ Looks like for the last few days, the whole thing doesn't show pictures anymore (most of them aren't showed), so is there a way to, for example rollback to the version from a month ago? The whole instructable was setup using html editor. This was fixed by the instructables support team.

Posted by e1ioan 4 years ago  |  last reply 4 years ago


what is the inductance of a coil which is 3mm in diam having 5 turns? Answered

I'm testing FM transmitter using multisim software.I don't know the value of the inductor to be used in the oscillator ( the oscill. has a variable cap.).I got this ckt. from a site, it is mentioned that the coil should be about 3mm in diameter and 5 turns. The wire is tinned copper wire, 0.61 mm in diameter.Since I'm testing it using multisim so i need a specific value.anyone knows it PLZ... let me know........THANKS.....

Asked by manpreet singh 9 years ago  |  last reply 9 years ago


-1 5/6 5 1/3?

I need the answer to this! I CANNOT FIND IT. It's probably right in front of my face, and I'm just stupid. Please help! its a mixed fraction. -1 5/6 + 5 1/3

Asked by paigeyb 8 years ago  |  last reply 8 years ago


What is 5 core solder? Answered

All i seem to find is a #5. Thanks

Asked by onrust 6 years ago  |  last reply 3 months ago


5 Gallon Bucket Projects

I've seen several projects that incorporate 5 gallon buckets.  Has there ever been a contest for the best use of a bucket?

Posted by diyoutdoorsman 7 years ago  |  last reply 7 years ago


Fly back for SALE $5

I have one flyback transformer for sale for $5

Posted by inductionheat! 9 years ago  |  last reply 9 years ago


Are there any 5 star instructables? Answered

The highest rated I've seen is 4.57

Asked by The One and Only 9 years ago  |  last reply 9 years ago


5-6mm square Paper Shredder???

Is there such a thing out there in Shredder-Land that makes squares about 5-6 mm?  

Asked by Timbershine 4 years ago



Archos 5

Well basiclly this is for all archso 5 fans and people who want the archos to come and read reviews by other people. I have posted an instructable on the archos 5 but want people to review the archos 5 share their thoughts hacks mods and anything about it you want you can even talk new archos a5. I dont really careyou can talk about any archos but try to talk about the archos 5 thanx.. :)

Posted by Popper122 9 years ago


5 black cardiges

Is there a way to control five same model cardriges. let say 5 pieces hp26a they all gonna print same text all together same time. like inject coders.

Posted by korguncelik 5 years ago  |  last reply 5 years ago


5 axle cnc

I have plans for a head that adds the c and a axles to a cnc, allowing it to be a 5 axle cnc, but I can't build it. does someone can and send me pictures? the plans are below

Posted by tgferreira184 6 years ago  |  last reply 6 years ago


Is it possible to get a rating of 5* on a forum topic?

I want every body here to rate this topic 5*. I've always wanted to know if its possible to get a full 5* on instructables. _Edit: DONT RATE IT 5 ANYMORE! Rate IT 0.5! Lets see how low the rating can go!

Posted by kingghaffari 10 years ago  |  last reply 9 years ago


how much a $5 bill of 1953 goes for?

Asked by 9 years ago  |  last reply 9 years ago


help with a 5-10v heating coil? Answered

I am trying to figure out how to make a heating coil that gets generously hot that runs on 5-10 volts. can anyone help?

Asked by zack247 8 years ago  |  last reply 8 years ago


Do people prefer 3 layer guns or 5 layer guns?? Answered

Do people prefer 3 layer knex guns or 5 layer knex guns??

Asked by Killer~SafeCracker 9 years ago  |  last reply 9 years ago


Top 5 Video Games?

What are your top 5 video games? Mine are: 1:Freelancer 2.Battlefield 2 3.Battlefield 1942 4.STO 5.Cod4

Posted by happybirthday 9 years ago  |  last reply 8 years ago



Gran Turismo 5 vs Forza 3

What do you think? For me it is Gran Turismo 5 all the way, but my friend says that Gorza 3 will be miles better.

Posted by Lowney 9 years ago  |  last reply 9 years ago



How to make a own 5 X AA battery holder?

Hi guys, I have tried looking around to buy a 5 x AA battery holder but unable to find one. As such, how can I make my own 5 X AA battery holder? I have a 4 x AA holder and a 2 x AA holder.. Is there any way to combine this two and make it a 5 x AA holder? Or can I use a 6 x AA holder and modify it to a 5 x AA holder? Thanks for your inputs.

Posted by kurtselva 5 years ago  |  last reply 5 years ago