Instructables: question - arduino Mon, 25 Sep 2017 19:18:20 PDT BLOX v1.01 How should I modify these code to send sensor reading to another Arduino? DavidC1165 Idea is to make a weather station using two Arduinos. They would communicate using RF transmitter and receiver. I tried to use VirtualWire library and its examples (named transmitter and receiver). I can send and print characters but I can't do the same with number(positive and negative). It's going...
By: DavidC1165

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Sun, 24 Sep 2017 08:13:05 PDT
Need help this fix arduino the error code please ? rosedgonzo im still beginner in arduino and i dont have any tutor to ask for ,i put the spi and mfrc522 library already ,please help me fix this error The copy error messages Arduino: 1.8.4 (Windows 7), Board: "Arduino/Genuino Uno" sketch_sep10a_teqj:10: error: 'MIFARE_Key' in 'class MFRC522' does not name a...
By: rosedgonzo

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Tue, 19 Sep 2017 19:55:06 PDT
how to control ultrasonic the servo should be steady if not detected by hands,upon closer your hand servo is get faster? Kirsch chu i need a code for ultasonic motor, controlling the servo motor. it should be steady if not detected by hand, and upon your hands getting closer to the ultrasonic the servo mototr getting faster. thank you
By: Kirsch chu

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Tue, 19 Sep 2017 05:31:25 PDT
How should I write a program to get a phone cal via GSM module if I get positive result with two sensors. abigailpearlin I have developed three codes one for GSM module to receive a phone call,Another for load cell sensor which will give output when a load is placed,and the next for PIR motion sensor if a human is detected. I'm in need of a code that would intimate through a phone call if I get positive resukts both i...
By: abigailpearlin

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Mon, 11 Sep 2017 06:57:51 PDT
What library is LTask.h in ? hsedidin I am getting atal error: LTask.h: No such file or directory
By: hsedidin

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Sun, 3 Sep 2017 13:17:14 PDT
Update Instructable or make new Instructable? fadecomic If you have revised a project that you wrote an Instructable for, is it common practice to update the instructable or write a new one? My changes are not really full 2.0 level, but they are a significant new step.  I have an Arduino based project, and I've pulled out the relatively expensive Arduin...
By: fadecomic

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Thu, 31 Aug 2017 11:38:27 PDT
Can i reuse an phone display? AnghelutaA Can i reuse an huawei P8 lite's display for my arduino?If so can anyone help me
By: AnghelutaA

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Fri, 18 Aug 2017 12:32:14 PDT
How to add a memory function when I push a button tmercados I have a proyect with a MLX90614 (an ir infrared thermometer with I2c), and the output temperature is displayed in a oled 128x64 I2c, I am using an arduino pro mini, the code works well, but i want to add a function: I want to press a button that saves the temperature shown, in the right down corn...
By: tmercados

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Fri, 11 Aug 2017 20:21:07 PDT
Why does my screen not let me go beyond page 6? Lesjbrown I am scrolling through Arduino Instructables but at the bottom of the page the index only shows pages 1, 2, 3, 4, 5, 6,.....  204, 205  but cannot go beyond page 6.
By: Lesjbrown

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Thu, 10 Aug 2017 13:05:13 PDT
I have a problem in this code for Arduino UNO , Can you help me? Fares Mareai #include #include #define SOL_ADC A0     // Solar panel side voltage divider is connected to pin A0 #define BAT_ADC A1    // Battery side voltage divider is connected to pin A1 #define CURRENT_ADC A2  // ACS 712 current sensor is connected to pin A2 #define TEMP_ADC A3   // LM 35 Temperature is co...
By: Fares Mareai

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Sun, 6 Aug 2017 01:54:56 PDT
A good wireless arduino communication device for helium balloon that is supposed to fly for altitude of 10 km LeeS182 I'm finding a sensor for my project, which is going to fly the helium balloon and collect pressure/temperature/humidity data from around altitude of 10km. is there any good wireless communication device for my project?
By: LeeS182

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Tue, 1 Aug 2017 08:35:45 PDT
Audio Jack Signal Output for Arduino Nano? CameronC82 So I am kind of new at this.  I am going to be making a LED lamp that has a sound detector module on it to control the LED's. (This one to be exact ) However i wanted to see if i could make a modification. If instead of having a sound sensor, could i jus...
By: CameronC82

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Mon, 31 Jul 2017 21:54:33 PDT
can we use same arduino programmed sketch for different motor drivers ? hardarknight i am expecting to build a bluetooth controlled 2WD robot using arduino. i need to use a pulolu dual VNH motor driver to run the two motors. i have a programmed arduino sketch that made for L293D Motor Shield .can i use that programmed sketch on my new robot that using pulolu motor driver without mak...
By: hardarknight

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Mon, 31 Jul 2017 03:17:07 PDT
help with code for soldering station project? spikepickstock Hey all I've been doing following this project with changes in the fact i'm using a UNO rather than a NANO (got the nano and forgot about the loader) and using a 30k pot instead of the 50k it calls for as a test bed   M...
By: spikepickstock

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Sat, 22 Jul 2017 00:47:50 PDT
Led stroboscope help hamada_bio i success to make a led stroboscope with an arduino uno and a 50watt high power led. but the problem was with the lumen of the led. the on time duration of the led is 500 microsecond and the led intensity is poor. i don't know how to make it and maintain the intensity of the led. note that i used a ...
By: hamada_bio

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Wed, 19 Jul 2017 06:33:35 PDT
Solar panel diode and battery ? muratm7 Hello, I have 5V solar panel which will charge my 18650 3400mah Panasonic 3.7V battery. I will use Voltage step up to 5V and I don't know which diode should I use between panel battery? I have all these diodes. IN4148 Diodes IN4007 Diodes  IN5819 Diodes IN5399 Diodes  FR107 Diodes  FR207 Diodes IN5...
By: muratm7

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Sat, 8 Jul 2017 06:58:45 PDT
4-DCMotor Driver? alisoud please help me to connect 4-DC-Motor-Driver-Module to arduino thank you
By: alisoud

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Mon, 3 Jul 2017 14:52:57 PDT
Help using a Neptune FS-100 flow sensor with an Arduino/pi? saltyrover Hey folks, I'm trying to detect a flow in a 1" pipe with a flow sensor. The best one i could find was made by this company called Neptune (FS-100) It looks like a basic hall effects flow meter but i am trying to get it to talk to an arduino and I seem to be failing. It has a TRRS 3.5mm plug on it...
By: saltyrover

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Fri, 9 Jun 2017 18:46:41 PDT
What could I do with 100 ne555p IC's? DELETED_MakiY2 I ended up with 100 NE555P IC'S and don't know what to do with them besides try to sell them. I'm thinking about making a PWM power supply just to tinker with, so there's 2 down. Any ideas for something practical or neat? Here is the date sheet:NE555P

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Fri, 9 Jun 2017 02:04:15 PDT
Newbe + Arduino Mega via codevision + AD9850 = Guidance needed? DELETED_MakiY2 Hello,Im very new to 'C' and codevision and have set myself a task to get a AD9850 module working. But there are two things in my way and they are understanding datasheets and writing C code. So first question would anyone help guide me through writing the necessary drivers? or is anyone aware of a ...

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Fri, 9 Jun 2017 01:59:25 PDT
Do we know the battery life of the CR2032? DELETED_MakiY2 According to this CR2032 data sheet at 3 volts left continuously on, the battery would last 1200 hours. (If I'm reading this right) Should we worry about having to change out the battery every couple of months?

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Fri, 9 Jun 2017 01:57:01 PDT
Different types of motors on the same arduino? Orange robot So I am still learning Arduino but I've already built quite a few robots. I'm stepping things up a notch by building a robot with several motors. I am using 9g servos, stepper motors, standard servos, and regular dc motors with l293d ic. I am also using 2 ultrasonic distance sensors. There will be 1...
By: Orange robot

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Wed, 7 Jun 2017 06:47:56 PDT
what is the long wire can i use with arduino uno and Relay Max Bayne hii every body i will use arduino uno as Microcontroller and i will use this controller to control my devices like (lights,tv,redio) etc i will put my arduino uno on my living room and will put many relays on other rooms of my house  my relay is 5 v DC input and control (250V/10A)  and i will ma...
By: Max Bayne

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Fri, 2 Jun 2017 19:27:27 PDT
Where can I find a digital potentiometer? bravoechonovember1 I need a digital potentiometer for an upcoming arduino project. does anyone know where I could salvage one?
By: bravoechonovember1

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Tue, 30 May 2017 16:20:01 PDT
How To: Create an Android App With Android Studio to Control LED? dmenefee In this tutorial here: it says to "Import the followings packages:" in the DeviceList class. My question is, HOW DO YOU IMPORT these packages? Does it mean to copy and paste somewhere the two code snippets: #1 import androi...
By: dmenefee

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Mon, 29 May 2017 17:22:50 PDT
WS2812b strip stopped working,what could be the possible cause? Sudoer-_-me Hi, I'm using a 1m ws2812b (30 led/m) strip for my ambilight setup with adrilight, using an arduino mega. I cut the 1m strip into 5 smaller strips  ['data direction as per this description':  (5+5 leds in bottom) - 5 leds at the left side - 10 leds at the top - 5 leds at the right side) ] and solder...
By: Sudoer-_-me

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Sun, 14 May 2017 00:11:46 PDT
What Code Should I Use to Create a Single Pulse Wave on my Arduino Uno? rah187 Hello,  I am in need of some code for my Arduino Uno. I searched around online for code that can perform pulse width modulation, but nothing I have found completely suits my needs. What kind of code should I use to generate a short blip of voltage which will quickly subside? More details, including ...
By: rah187

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Sat, 13 May 2017 12:25:29 PDT
Arduino Clock: Getting The Time from Thin Air? rdlockrey hello, I have made a few arduino based clocks now & one thing I been considering making an generic version of an atomic clock that can program itself with the local time using local GSM Network. The idea came when I noticed  that an old tmobile phone I had from years ago synced time & date autom...
By: rdlockrey

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Sun, 7 May 2017 16:37:03 PDT
Asking a servo to sweep on an obstacle avoidance car? KevinM560 I am just a few weeks into learning how these things work, and as such, have primarily been looking at coding from examples and getting them to fit with what I am doing.  Here's the setup.  We (my students and I) have built an elegoo 4 wheeled arduino platform car.  Primarily, we are using it to aut...
By: KevinM560

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Mon, 1 May 2017 13:56:00 PDT
Please help me that how to control a robot coding David_Lin please help me ~ ! please help me about my arduno robot plat form that (a nano) it's can't reset itself by interrupt or reset itself per 200 ms automatically. in order to RUN(move) and LISTEN(receive command) at the same time!
By: David_Lin

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Fri, 21 Apr 2017 23:31:38 PDT
Need a little help with Arduino code Orange robot Hello, I'm in need of a little help with my Arduino code. I'm still an amateur with Arduino so I'm still learning. I know there is some function that makes the loop only happen for a certain amount of times,  but I forgot what it was. If someone knows what I'm talking about, thanks a lot for your as...
By: Orange robot

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Thu, 20 Apr 2017 17:59:12 PDT
Arduino Game Coding - FSR (Pressure Sensor) Based Shooting Game rixter1818 I'm making a shooting style arcade game in which you shoot a projectile at four different force sensitive resistors trying to rack up as many points as possible before the timer runs out. When a ball hits one of the fsr I want to have the arduino keep score and show it on a 16x2 lcd. Each one of th...
By: rixter1818

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Sun, 16 Apr 2017 21:54:33 PDT
1 Arduino + 3 or 4 LM35s? FargingIcehole I am a total beginner, having logged about one hour here (the last hour). Does this sound OK for a first Arduino project? I want to sample and log the temperature outside at the surface and at depth for a total of 4 readings to a depth of around 50cm (20"). The reason is to consider if I should p...
By: FargingIcehole

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Tue, 11 Apr 2017 12:56:29 PDT
Arduino stuck in dfu mode jbaker22 Hello, I recently updated the firmware on my areduino uno. It is this model, "               Product ID: 0x2ff7               Vendor ID: 0x03eb  (Atmel Corporation)               Version: 0.00               Speed: Up to 12 Mb/sec               Location ID: 0xfd140000 / 4               Current Avail...
By: jbaker22

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Fri, 7 Apr 2017 11:07:49 PDT
what is the value that obtained from serial monitor in arduino?? ? OngE2 I working with my DIY sensor ( colour sensor) and i have no idea what the reading i obtained from the serial monitor in arduino software ? Anyone know? and how to change the value to voltage value? as i need to write down the voltage reading for my result part.
By: OngE2

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Tue, 4 Apr 2017 20:10:58 PDT
How to make Visual Basic shown the detected colour from arduino (colour sensor)? OngE2 I want to display the detected colour on Visual Basic software... the object color is sensed using the color sensor that diy by arduino... so how i interface the visual basic with arduino ?? can someone help me with the coding?? the example is as below picture...
By: OngE2

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Tue, 4 Apr 2017 08:16:47 PDT
small serial high resolution display? CalebO2 Is there a 720p or 1080p display that is about  .75" -1.5" diagonally, this would be used for an Arduino project so if it has pins rather than a type of ribbon cable connector that would be helpful.
By: CalebO2

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Sun, 2 Apr 2017 21:19:40 PDT
how can i power three servo and an arduino UNO using a single 12 volt battery? JeevsJ I have a 12 volt rechargeable battery, and I am in need to provide power supply to my project, that contains 3 servo motors ( 2-MG995 and 1- DXW90) and also my arduino UNO . I am getting issues like when i use all these through arduino the arduino stops working. so how can i solve this issue. I have...
By: JeevsJ

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Sun, 2 Apr 2017 07:11:25 PDT
While compiling I get this error message from Arduino, does anyone know how to fix it? mo.nicholas Arduino: 1.8.2 (Windows 10), Board: "NodeMCU 0.9 (ESP-12 Module), 80 MHz, Serial, 115200, 4M (3M SPIFFS)" C:\Users\super\AppData\Local\Temp\Temp1_Wifi-Jammer-master (1).zip\Wifi-Jammer-master\WIFI Jammer\wifi jammer\esp8266_deauther-master\esp8266_deauther\esp8266_deauther.ino:11:18: fatal error: d...
By: mo.nicholas

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Mon, 27 Mar 2017 15:58:14 PDT
Arduino Current Sourcing for Common Anode RGB rdlockrey Question: Is it safe for the arduino to sink more current then the arduino is sourcing? (see diagram below) My project requires 12 of large 10mm RGB leds,  broken down this is 36 leds in total, which exceeds maximum draw,  the design calls for the LED's to share a 5v+ from a seperate 5v regulator,...
By: rdlockrey

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Thu, 23 Mar 2017 15:28:37 PDT
Hi I want to programm an arduino help? sharkmagic Hi I want to program the Arduino in order that when the motion trigger activates the dc motor stops is there a way to do it please help I couldn't find any code please help.
By: sharkmagic

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Wed, 22 Mar 2017 12:10:46 PDT
I need help with my arduino code, the error code is "stray #" . located at #define DO_NEXT 4 JacLir00179 1.//iOS switch control example 2.//Simple version 3.#define MY_DEBUG 1 4.#include "BluefruitRoutines.h" 5. 6.//Pin numbers for switches 7.#define PREVIOUS_SWITCH A0 8.#define SELECT_SWITCH A1 9.#define NEXT_SWITCH A2 10. 11.//Actions 12.#define DO_PREVIOUS 1 13.#define DO_SELECT   2 1...
By: JacLir00179

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Tue, 21 Mar 2017 10:59:56 PDT
Is it possible to record incoming calls with arduino uno and GSM module? jampaiah2470 I am doing a project to record incoming calls which are going to arduino(GSM module) as a text  file or audio file. Am new to embedded, Please anyone can explain how can i record calls automatically with arduino...!! thanks in advance.....!!
By: jampaiah2470

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Mon, 20 Mar 2017 23:05:57 PDT
Help regard ESP 8266 or HC 05? shahryar.adil.3 Hi guys! :3 So I'm in need of some help regarding this project According to the project, you need to reprogram the robot for every function but it would be very tedious and time consuming to program it again and again. So, I th...
By: shahryar.adil.3

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Fri, 17 Mar 2017 22:39:34 PDT
Can someone help with my anti auto theft arduino device? I am trying to use a reed switch and a relay. LuccaL1      I am trying to build a device for my engineering project which is a anti theft device for cargo trucks in third world countries. Since cargo stealing is very common truckers already use satellite tracking. The device works in the following way, in an attempt to steal the truck a thieve tries to...
By: LuccaL1

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Mon, 13 Mar 2017 22:59:08 PDT
arduino program to sweep servo when hall sensor high vipulg i want the program to control the servo such that when the hall sensor senses the magnet the servo should sweep and when hall sensor again senses the servo should come to its original place so guys please tell me how to do it and also tell me connections
By: vipulg

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Sat, 11 Mar 2017 09:16:29 PST
Is Arduino can do FM modulation? Rajkumar2506 Is Arduino can do FM modulation without any additional peripherals.Simply an Higher AC frequency signal with antenna can propagate in air. My question is,can we do FM modulation in Arduino only by coding it,without using any additional peripherals.Generating the carrier frequency in Arduino by codin...
By: Rajkumar2506

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Fri, 10 Mar 2017 05:38:26 PST
Arduino to arduino wireless communication while one is running a stepper motor? AndrewS522
By: AndrewS522

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Thu, 9 Mar 2017 03:55:28 PST
Can I power an Arduino to control a relay to control a load with 1 source like this? Shizen I'm no sure if I can do this or not, I base the schematic of this article Because I want to use only 1 source to control the whole thing, can I power everything like this? My source can provide 2A, my load uses 100mA If it's possible, is...
By: Shizen

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Thu, 2 Mar 2017 22:20:11 PST
Changes to getting users Comments with project download? PaulH29 You did have a small box popup when you downloaded a instructable that asked if you wanted it to be a adobe file with another check box to include other peoples comments about the project.  I would love the .pdf to include the comments from other members as there great questions asked and solutions ...
By: PaulH29

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Thu, 2 Mar 2017 00:24:48 PST