Instructables: question - arduino Fri, 22 Aug 2014 11:01:51 PDT BLOX v1.01 Are the JY MCU and the HC 05 bluetooth module the same? TannyPB if not, how are they different? do they works with all android phones? what librabries or software do i use for controlling these with arduino???
By: TannyPB

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Thu, 21 Aug 2014 06:05:40 PDT
Faint LED's while using an Arduino Micro and shift register? DoctorWoo This is more of a "How things work" question, but a question non the less. I have five 595 shift registers hooked up to an arduino micro. Everything is wired correctly, and it all works beautifully on my test bed, all the codes work fine. Only issue is that my LED's are only about half as bright as...
By: DoctorWoo

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Wed, 20 Aug 2014 13:34:13 PDT
How to count the number of the button is pressed and use another button to erase the count. izzaty.anuar I want to know about how to count the number of the button pushed  and how to display it on lcd.At the same time the count can be erase to 0 to start another counting. Is there any sketch or schematic that you can suggest to me?
By: izzaty.anuar

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Thu, 14 Aug 2014 18:15:40 PDT
Integrating a sensor to arduino? naveenkumarmn7 I want to know to integrate a sensor to arduino. I mean how to start and from where to start. I dont want to use existing libraries, I want to create my own. I know the working of sensors and and some other basic stuff.  I want to read a sensor data (for ex: ADXL345), I want to look into the datash...
By: naveenkumarmn7

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Tue, 12 Aug 2014 00:47:42 PDT
Is there a DIY Arduino or Raspberry Pi Coordinate Measuring Machine published in "Instructables"? chestef I wish to build a coordinate machine using x-y-z movements controlled by a microprocessor that can measure a scale model by touch of a probe or by reflection of a microwave.  The base machine would handle an envelope of 8" x 8" x 8" and use one or a combination of the best of the CNC laser cutters, ...
By: chestef

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Sat, 9 Aug 2014 15:44:57 PDT
How can i recheck my connections?What are the general problems regarding Lcd displays? achyuth93 I just need to know regarding the buzzer module ...I have been using buzzer instead of  a buzzer module.Is it fine? ..Although it works fine.And please let me know the general troubleshoots related to LCD displays .I think my circuit's working great except for the lcd part. I am done uploading the c...
By: achyuth93

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Fri, 8 Aug 2014 18:44:24 PDT
Arduino Yun Garage Door Opener? chrisleva I have an Arduino Yun with a Seeed Relay Shield and trying to create a garage door opener.  I have tried just about every sketch available but no luck.  It seems the sketches are for Arduino Uno boards with Ethernet Shields.  I tried that but was unable to establish network connectivity with a W5200...
By: chrisleva

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Thu, 31 Jul 2014 09:52:17 PDT
Whats wrong with the sketch?? Ankan Nayak This arduino robo, there is no servo, this runs only with 2 geared motors, i made the sketch according to the needs bt it doent seem to making those turns even after sensing the obstacle. The ping sensor is functional and connected properly and thel293d ic is also functional..Pls tell me whats wrong...
By: Ankan Nayak

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Mon, 28 Jul 2014 22:37:12 PDT
ITS URGENT! Arduino not working with external power supply? Ankan Nayak I have made arduino uno u3 robot, i have used 2 geared motors via a l293d using one 9v battery and tried power the arduino with a 9v battery, then with 9v adapter but it did'nt work, I also tried powering the board via the Vin pin, also through the usb cable using the 9v batterg and adapter, but it ...
By: Ankan Nayak

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Sun, 27 Jul 2014 06:13:46 PDT
Arduino code help? cmasuo I'm really new to the arduino and I'm struggling to get this code working. I'm trying to have a servo continuously go back and forth until I change its state, which result on the servo to stop at its current position. However, it gets stuck on that for loop and i can't change its state. I assume thi...
By: cmasuo

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Sat, 26 Jul 2014 21:10:26 PDT
Building blocks associated with Arduino 433 Mhz transmitter & receiver ItsDavid001 Newbie here.  I want to make a temperature monitor that will transmit an alert signal to a receiver.  If I use the little 433Mhz  Arduino RF transmitter / receiver modules, what would I need with them?  I know these can be attached to the Arduino programing boards and are made functional by a comp...
By: ItsDavid001

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Sat, 26 Jul 2014 10:12:26 PDT
ARDUINO not powering up!? Ankan Nayak I have made an arduino uno robot, i have run 2 motors via the l293d ic which i've powered with a 9v battery regulated to 5v. The whole thing worked very well when run with the usb but when I plugged a 9v battery to the arduino, it did'nt work. Please suggest a sol. fast, its urgent again!!!
By: Ankan Nayak

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Sat, 26 Jul 2014 07:07:26 PDT
I fried the arduino mega? chrissunny94 Ok i was using an arduino mega and ramps 1.4 motor controller for my home build cnc.During the time of testing ,there was ahuge back current and probably the mega is fried. This is the state now,when i plug the mega on to my computer : 1)The Green ON led lights up 2)device detected ,but not recogn...
By: chrissunny94

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Tue, 22 Jul 2014 23:15:11 PDT
URGENT!!!sketch for arduino robot with ping? Ankan Nayak i am making an arduino obstacle avoiding robot for my science project.. But i am not getting a suitable sketch for a ping to use with it. I am only getting that of sharp ir sensor. Please help me out with a sketch..its urgent..below i have linked the site where there is the sketch and the project da...
By: Ankan Nayak

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Mon, 21 Jul 2014 12:57:14 PDT
Arduino or Raspberry Pi? Seanex Well I am a 16 year old High School student interested in engineering and things of that sort. I recently took an engineering class at my school and was thoroughly pleased with the concepts. My father is also an engineer, and would like me to dive deeper into these sorts of things. Being a long time...
By: Seanex

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Tue, 15 Jul 2014 18:07:55 PDT
Why can't I send a Private Message with a free account? It explicitly stated that that was possible with a free account ard99
By: ard99

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Sun, 13 Jul 2014 23:18:30 PDT
problem with arduino? sgupta95 I have some questions about Arduino Uno. I connect my board and within 5 minutes (no code is running or anything), the chip becomes hot. Plus, none of the IDE is recognizing my board. I'm always getting the error "avrdude: stk500_getsync(): not in sync: resp=0x00". Can someone help me with these iss...
By: sgupta95

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Sun, 13 Jul 2014 14:05:53 PDT
my arduino's L led is not blinking so i figured out i cannot upload a program.? robobot3112 i need to submit it as a project this month.can anybody give me the cause or a trouble shooting advice?
By: robobot3112

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Sun, 13 Jul 2014 06:42:45 PDT
How to move plate in front of window with arduino? piefert I would like to be able to move a plate in front of a window in a door to prevent light from coming in at night. I don't know how to attach the plate onto the door in such a way that it can be moved with the use of a servo/motor controlled by the arduino. I would also like to know where how I could ...
By: piefert

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Sat, 12 Jul 2014 08:27:51 PDT
Unable to program an Arduino micro. Any ideas on how to fix this? DoctorWoo I've been working on a project for some time now, and I plan to embed an arduino micro into it. As such, I just went to do a dry run of the setup with the micro before I started putting it all together. And failed miserably.  Few things to get out of the way: -It is an off-brand, but it does have t...
By: DoctorWoo

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Thu, 10 Jul 2014 02:52:27 PDT
Control Arduino with voice commands from PC microphone aattyah i want to control my own robot with Voice command, using PC microphone ( headphone ) as a source of Voice commands.
By: aattyah

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Sun, 29 Jun 2014 17:00:00 PDT
Broken Arduino? TheFruktus Few days ago I was making arduino project which involved using power supply with 12v (musical floppies). I had uno connected to my laptop and I was connecting power supply to floppy which arduino was supposed to control, but I plugged wire in wrong socket. Computer  and power supply shut down immedi...
By: TheFruktus

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Thu, 26 Jun 2014 15:51:24 PDT
Arduino? Ahtasham Ahmad Mohtashim I want to learn about arduino. All I know about them is that they are open source micro-controllers on  which you can write programs. I want to learn all about them how to program them, how to use the analog and digital pins, whats the difference between different types of arduino etc. Any eBook, we...
By: Ahtasham Ahmad Mohtashim

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Wed, 18 Jun 2014 12:19:30 PDT
Can we make an Arduino based ebook reader? vietanisme E-reader is convenient. Pay for an E - reader is consider paying for thousands books. But not any body can afford a kindle or kobo, and geeks won't satisfy with them. So, I want to make an Arduino based ebook reader myself. The parts must be the cheapest (such as Arduino Nano...) or the recycled. Ca...
By: vietanisme

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Tue, 17 Jun 2014 08:29:49 PDT
arduino coding question - if any of the 3 sensors are low, turn off led? Akin Yildiz hello everyone. i have no background in programming. i am currently working on a plant health monitor. the monitor has 3 sensors, water - temperature - light. i can successfully read data from sensors and turn on/off leds depending on the values. what I just CAN'T figure out how to do yet is this; i...
By: Akin Yildiz

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Tue, 17 Jun 2014 07:34:56 PDT
how will i recognize original and fake arduino boards ? nirmalnirmal
By: nirmalnirmal

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Sun, 15 Jun 2014 22:16:29 PDT
what "words" do I use to program a arduino? bonycargo
By: bonycargo

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Sun, 15 Jun 2014 08:14:15 PDT
ADNS 2620 Mouse Sensor and Lens? blorgggg MAIN QUESTION: What is a good simple way to hack together my own tiny lens that can go over a mouse sensor chip to allow it to focus about 10-20 cm away? I bought a bunch of these mouse sensors (which are basically tiny cameras) right before I came down to pa...
By: blorgggg

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Sat, 14 Jun 2014 01:28:34 PDT
How to program atmega32A using arduino uno?? akki5230 I bought a 40pin atmel's Atmega32A-PU and i was unaware that it needs a different programmer rather than using arduino. I can't buy another programmer just to program that ic. I have arduino uno board which has atmeha328p and i have used it to program another atmega328p. But I don't know how to prog...
By: akki5230

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Wed, 11 Jun 2014 00:57:08 PDT
How to read an arduino shied schematic to replicate said shield? DoctorWoo One of my many projects I have going requires an arduino and wave shield. I have a wave shield from adafruit already, along with an uno, and I have already done what I wanted.  However, price is an issue. I would like to make a board that has both a bare-bone arduino and a wave shield. Adafruit has...
By: DoctorWoo

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Sun, 8 Jun 2014 01:56:56 PDT
How to make a servo return to initial possition? gastonbr100 Hi, i am new to arduino and i want to open and close my room's door with a RFID and a servo, the problem is that when i put my card in front the RFID the first time, the servo works great, but in the second time the servo moves more than the first time, and the third time even more, here is my code ...
By: gastonbr100

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Thu, 5 Jun 2014 19:57:48 PDT
How many volts do two hitec 5055mg servos need, and how do I hook the External battery to an arduino uno? karti
By: karti

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Thu, 29 May 2014 22:07:33 PDT
Any Idea how to get this instructable featured? lamefreaks Hey  I need some ideas how to make this instructable better and featured, feel free to criticize it.  Thanks
By: lamefreaks

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Tue, 27 May 2014 02:15:00 PDT
Is it possible to make a Beowulf Custer with Arduino? Tanmay Das Is it possible to make a small cluster computer using Arduinos? It has been done with Pi, but could it be made with breadboard Arduino? I read about I2C and it seems viable. Anyone had tried it yet? Awaiting some reply Trace
By: Tanmay Das

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Sat, 24 May 2014 19:26:34 PDT
Arduino Countdown timer code problem? Djandco I was using the Crazy Countdown Timer as a base for yet another project and I seem to have hit a dead end with the code. I have taken an input (A3) that used to speed up the countdown time and tried to change the function to add five minutes to the remaining time. I have tried various methods and th...
By: Djandco

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Sat, 24 May 2014 12:43:10 PDT
Why doesn't my MX-FS-03V / MX-05V 433MHz trick work? thedod This is for someone who has balance problems, only needs a walking cane during an episode, and can physically walk away from the cane quite a distance before it's actually needed (oops). The idea is to attach the transmitter (no arduino) to a walking cane, and have receiver + [small] arduino + buzz...
By: thedod

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Fri, 23 May 2014 15:04:47 PDT
Arudino countdown timer? DoctorWoo I'm looking to make a countdown timer for my local card shop for games of Magic (nerdy, I know). However, I think I jumped the gun, as I have no idea how to do this.  My plan is to us an arduino nano/barebone arduino as the brains to this, make my own 4 digit 7 segment display, and have give it a p...
By: DoctorWoo

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Thu, 22 May 2014 19:09:27 PDT
i need to monitor plastic film thickness during production, which is normally 22 - 35 microns thick. how can i do this? mianyaasser
By: mianyaasser

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Tue, 20 May 2014 13:17:04 PDT
My arduino's L led or pin 13 led doesnt blink and my computer (windows 7) is not even recognizing it. robobot3112 i need to submit it this month . i am using it for a bipedal robot.can anybody recommend me troubleshooting was working well before and the cable also works.
By: robobot3112

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Mon, 19 May 2014 00:10:43 PDT
My Arduino countdown timer will randomly start subtracting by tens when its set to ones why? harry88 I made a little small scale hydroponics system controlled by my Arduino mega it's supposed to count down from 300 seconds (5 mins) and when it hits 0 activate a pump for one minute then reset and do the cycle all over again. But after a couple of cycles it will randomly start counting down by tens o...
By: harry88

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Sun, 18 May 2014 19:50:07 PDT
HOW DO I MAKE A EXTERNAL BUTTON SEND KEYSTROKE VIA ARDUNIO/GOBETWINO ?????? michealdaddy i have never attempted any of this before and it is all completely new to me basicly what im looking to do after seeing it on you tube is make a control panel and if i press button 1 - the computer thinks its the space bar button 2 - T if that makes sense  i have just bought the arduino uno and d...
By: michealdaddy

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Sat, 17 May 2014 10:22:29 PDT
Stepper motor+ L297+ arduino mega2560? Hassaan311 I want to run stepper motor and control them using arduino. But i dont know how to patch the circuit. I have to give the output of L297 though H bridge made by tip 122 and tip127 transistors (2 each) for handling of higher current.
By: Hassaan311

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Thu, 15 May 2014 19:32:53 PDT
Is there a way to put have a button push in a set of time (arduino)? gradof6b I want to make a treat disperser for my dog that he can just push a button and get one, but only allowed one within a set amount of time so he doesn't just sit there hitting the button all day.
By: gradof6b

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Wed, 14 May 2014 15:16:28 PDT
Arduino code jbaker22 Hello, I have been trying to make code for my arduino. I would like code to tell my arduino to receive a servo signal from my rc receiver, then detect whether the signal is telling the esc to move forwards or backwards. If the signal is forwards, it simply relays that code to the ESC. If the signal ...
By: jbaker22

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Sun, 11 May 2014 08:28:55 PDT
Can anyone help me with the control algorithm for MPU 9150 (9-axis motion controller)? rahulstanley Me and my team are working to make a Quad-copter using an Arduino. But to stabilize it, we planned to use MPU9150. We tried and we are still trying to make it work with the controller. So far, we can get the raw data from the motion controller, but we are unable to configure it as per our needs. So ...
By: rahulstanley

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Thu, 8 May 2014 03:18:38 PDT
How to control 100 bidirectional DC motors? fujiapple Hi,  I'm trying to control 100 DC motors using a microcontroller (Arduino Mega) The motors run on 1.5V and have a operational current of 40mA. 1) Each motor must be able to rotate clockwise and counter clockwise 2) The motors must be able to move independently     (though direction of the motors a...
By: fujiapple

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Wed, 7 May 2014 07:43:32 PDT
What type of transistor do i need? deacond07 Hello, Im trying to build some sort of disco light set up, i will be using an arduino. Spec: Voltage 12v Arduino (5v PWM) Amps 2.5 Needs to be able to: Dim Flash What type of mosfet or transistor will i need to controll it all Thanks Daniel
By: deacond07

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Tue, 6 May 2014 16:27:09 PDT
software that can translate bitmap to vectorgraph or G code for CNC? asygoogle I want to build something like a CNC. But using a pen instead of CNC's drill so that I can use it to draw image. I searched a lot about G-code, but they are all for vectorgraph. So I need help if there is any software that can translate the bitmap to G-code? THANKS
By: asygoogle

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Mon, 5 May 2014 02:37:07 PDT
how to count 2 consecutive counting loops with arduino while limiting each count? neofral this is part of a larger project but i'm stuck on the code for the loop. to make the situation simpler lat's say: i'm trying to count the number of button pushes and light 2 different LEDs. let's say green LED for x times, after that the red LED y times and go on repetitively. in the void loop i wou...
By: neofral

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Sun, 4 May 2014 10:50:02 PDT
What is != in arduino programming? fahmed20 I found it in the DC motor test example from Adafruit Motorshield library. The line goes like this: void loop() {   uint8_t i;     Serial.print("tick");   myMotor-run(FORWARD);   for (i=0; i     myMotor-setSpeed(i);      delay(10); I have no idea what it is pls help me.
By: fahmed20

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Sat, 3 May 2014 08:06:50 PDT