Tagged Questions
The Arduino Nano is a small board based on the ATmega328 or 168. It has male headers, so it can be plugged directly into a breadboard. It is small and compact, and features a USB chip.
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0answers
15 views
How to track movement with accelerometer
this is first time working with arduino.
I'm trying to make a DIY Harry Potter Wand that turns on an LED if you wave the wand in a certain way. I'm wondering how to get the arduino to track a ...
0
votes
3answers
83 views
How to send AT command to sim800l with SoftwareSerial
I have sim800l module connected to arduino and i'm trying to initialize it in my setup function with this code:
#include <SoftwareSerial.h>
//SIM800 TX is connected to Arduino D8
#define ...
0
votes
2answers
37 views
Piezo not loud enough
I'm trying to get 110dB out of a 25khz Piezo Transducer. This piezo resonates at 25khz and as per the illustration in its datasheet should emit 110dB with 10 volts and 25khz frequency.
Any ...
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1answer
34 views
Need help on HC05 and Nano
I am new to Arduino programming and currently working on this instructable
http://www.instructables.com/id/Control-Led-RGB/ (following this diagram http://cdn.instructables.com/F6Q/IMHF/I0LCDK6B/...
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1answer
22 views
Arduino Nano Update failure - avrdude: stk500_recv(): programmer is not responding
Before I tear all my hair and teeth out, can anyone please help. I have tried googling an answer and have not found anything.
My Setup:
Win7 64bit
Arduino 1.6.9 IDE freshly reinstalled
COM14 port ...
0
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0answers
13 views
OBD2 Library for Arduino and DTC codes
I was experimenting little bit with this library, but I can't find any example how to read DTC codes with this?
Should I just use this plain sendCommand and send 03\r as command, and than convert ...
0
votes
1answer
10 views
What is the wiring of arduino motor shield to Nano?
I have the basic version of the stepper motor driver and a Nano, I see the pins are set to plug directly in to a Uno or similar Arduino, but according to the documentation it just needs most of the ...
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2answers
34 views
I just fried my Arduino on a breadboard. Can I still use the breadboard?
So, I just friend my arduino nano on a breadboard. Can I still use the breadboard and usb cable?
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1answer
27 views
Problems running several arduinos off of one HC-05 Tx pin
TL;DR: Multiple Arduino's listening to single serial rail are burning out my HC-05's TX pin. Arduino's are leaking voltage onto signal rail. How do I stop, or isolate that to keep from burning out ...
0
votes
1answer
32 views
I feel like an idiot, why can't I make a servo move with the boilerplate code?
So I was working on a far more grand project, until I discovered that I couldn't get any of my servos to move.
I've gone back to basics, and am trying to just get the boilerplate code found here, ...
0
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1answer
21 views
GikFun Arduino Nano locking up on serial I/o
I'm running into a problem with a GikFun Arduino Nano. The symptom appears when I'm reading the receive buffer to clear it after an operation completes. The unit just appears to stop somewhere in the ...
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0answers
11 views
What is the protocol that uses ROS with arduino? [on hold]
I'm trying to know what is the protocol that uses ROS and arduino, Is it Firmata?
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1answer
25 views
Arduino Nano (clone) not recognized
Asking here cause I ran out of options in searching. My Arduino Nano clone isn't recognized by my computer anymore. It was, until I plugged into a Windows machine, that did not recognize it... and now ...
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vote
0answers
56 views
Arduino nano is not working [closed]
A couple weeks ago I got my Arduino Nano after having experienced the Uno i wanted another one. The problem was that it wasn't ***** working. I searched a lot of the internet, but couldn't find a ...
0
votes
2answers
38 views
Removing CH340g chip from Arduino Nano clone.. any issues?
In trying to figure out how to solve another problem with Arduino Nano clone using CH340 chip, I was just now wondering, would there be any issues if I were to simply remove the CH340 chip? As it ...
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2answers
52 views
Arduino Nano clone doesn't fit into breadboard. How can I work around this? [closed]
I have bought an arduino nano clone (called funduino) and upon trying to place it into my breadboard to work with it I realised that the pins do not line up with the holes on the breadboard so I ...
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votes
1answer
69 views
How to serve multiple connections with an ESP8266 and an Adruino?
I want to make a server using an ESP8266 (12e) and an Arduino Nano.
I have got everything hooked and I created a minimal "Hello World" example, based on a number of samples found on the web, which is ...
0
votes
1answer
26 views
2 Direction Motor [closed]
Using an Arduino-Nano, I'm trying to make a circuit that will change the direction of a motor based on two inputs. The input from the Arduino will be amplified by a transistor. Here's the code:
int ...
0
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3answers
94 views
How to change baudrate of ESP8622 (12e) permanently?
IMPORTANT : DO NOT USE AT+IPR=9600 !! (see update)
I have a ESP8266 12e module that communicates at 115200 baudrate.
Since I use it with an Arduino nano with SoftwareSerial things get messy.
So I ...
0
votes
1answer
35 views
Need Help with Switch Case commands/receiver and lcd screen project?
I am doing a project with a receiver and transmitter and i am trying to get a message to print onto the screen. If anybody has any experience with this could you please help! I am trying to use a ...
0
votes
2answers
57 views
Arduino nano to esp8266 level shifting needed?
I want to connect an Esp8266 Wifi module to an Arduino nano. I am wondering if I need to implement level-shifting for the Arduino TX line to Esp RX line?
I find different schema's on the net. Some ...
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1answer
21 views
Can I use Arduino Nano V3 to program another arduino (Pro Mini)?
I was planning to buy serial to USB converter (FT232RL) to be able to program Arduino Pro Mini.
But the shop nearby offers Arduino Nano V3 at almost the same price.
Could I use this Arduino instead (...
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1answer
40 views
I'm having some undefined references and can't figure out why
Try verifying the code to see the errors. This is on a arduino nano with a 328 processor. I put the necessary library in the code.
Pastebin for code
#ifndef Pushbutton_h
#define Pushbutton_h
#...
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0answers
33 views
low power bluetooth mode?
I am an electronics hobbyist using an Arduino nano with a HC-05 bluetooth module for coms with my smartphone.
I have an app where the HC-05 will be dormant for a long time, days at a time, and I'd ...
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1answer
24 views
How to not wait for USB to become active?
EDIT: My original question was a bit "off" since the Arduino Nano I was using appeared to be faulty. This edited question is based on my other Arduino Nano which is working.
When I plug my Arduino ...
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0answers
68 views
Nano clone not working over USB, no data, no power, but can power via Vin (CH340 chip? schottky diode?)
My quite new nano clone (atmega328p + ch340g) suddenly stopped working. Plugging it in with USB did not light up the LED(s) nor did it get detected by my machine. I looked it up, and found some how-to'...
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votes
2answers
39 views
Arduino Nano not showing up in /dev
When I plug in my nanoatmega328 to my computer, nothing shows up in /dev as I expect it to. If I plug in my Uno, /dev/ttyACM0 shows up. I have tried several Nanos.
Linux Mint 17.2.
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votes
2answers
54 views
RGB Led strip pot control burned my arduino?
I made this exact build on my Arduino, with the following differences:
I'm using Arduino Nano
Transistors I use are 2N2222A
I'm running everything on 12V except Arduino, I use LM317 to feed Arduino ...
1
vote
1answer
22 views
Digital input pin voltage treshold (voltage to register 1 or 0)
I was thinking of using multiple analog light sensors (variable resistance by light), but basically I only need to know if there is "a lot of light" or "not a lot of light". And would like to use ...
0
votes
1answer
56 views
Javascript - Arduino - esp8266 - motor control [on hold]
I am newbie at javascript and i have some problems with a range slider i am trying to get through.
I am trying to send my slider value to the address 192.168.4.1 which is my esp connected to arduino.
...
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2answers
149 views
How can one use the SPI hardware on the Arduino Nano?
I recently prototyped and programmed a system that used some SPI sensors on an Arduino Uno. I wanted to get the size down a bit, so I was thinking I might buy an Arduino Nano and re-wire my system ...
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0answers
20 views
Writing data into the array and its listing
I need to save the data to the Arduino array() at a certain time delay(500) and then have a second delay time delay(2000) that these data stored in array lists and arrays reset for the new store.
How ...
2
votes
1answer
52 views
Sampling frequency
I am an undergraduate student at a public university in Maryland. I am currently doing a project with an arduino and I came across a problem that I could not figure out after several days of ...
1
vote
0answers
25 views
Redbear BLE v4.1 - Daisy Chains?
Has anyone in SE land tried daisy chaining BLE v4.1 or v4.2 devices? I'm embarking on my next project and would like to try daisy chaining BLE devices. The only device I've found is the RedBear Nano:...
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0answers
31 views
Different brightness per color (FAST.LED)
Is it possible to use different brightness per color?
I would like to define red more brighter than white.
Now I use a overall brightness (FastLED.setBrightness(MAX_BRIGHTNESS);)
I use a arduino, ...
0
votes
1answer
34 views
Arduino: pins still active after entering sleep mode
I'm writing an Arduino sketch to control a display with my Arduino Nano. I have wired it up as explained here, but used pin 3-7 instead of pin 2-6 listed in the example. The reason I did so is that I ...
0
votes
0answers
43 views
Why does this code make 4 Hz readings and the other is slower?
I want to make 4 Hz readings of the temperature. I don't understand why the second code is slower.
First code (what I think works)
#include <OneWire.h>
int DS18S20_Pin = 3; //DS18S20 Signal ...
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vote
0answers
48 views
Arduino Nano USB Serial Bypass
I have a Nano clone here, that sporadically fails to get detected by my banana pi. This is annoying, because it works for days and hours, but fails to work randomly.
The Nano gets it's own power via ...
0
votes
1answer
30 views
Disable other buttons while one of buttons is pressed
I'm making a project with three buttons. What I'm trying to do is to disable other buttons (make them not respond to a click event) when one of three buttons is pressed.
For now I have this code:
...
1
vote
1answer
39 views
Digital pin output voltage, not triggering 71mA relay coil
I have a relay (VRS4H-S-DC5V-C), for which the triggering voltage required is 5V Min. If I directly use the 5V voltage of Arduino I'm able to trigger it, but if I use any digital pin in OUTPUT mode ...
0
votes
2answers
29 views
I²C between 2 Arduinos sends additional receive event
I hooked up two Arduino Nanos with I²C, using 3 wires between GND <-> GND, A4 <-> A4, A5 <-> A5Ω and 1kΩ pull-up resistors on A4 & A5.
When I use the following code to communicate ...
0
votes
2answers
188 views
Arduino Nano - Unknown USB device
I just bought an Arduino Nano v3.0 (compatible? +- 5$) and I cannot connect it to my computer (Windows 8.1 64bit, Arduino IDE 1.6.8 installed).
The Arduino was bought as a clone but shows GRAVITECH....
0
votes
1answer
48 views
Why does this code show me a lot of space?
I want to make a 4hz reading of GSR and temperature, in the following format for every second:
697,20.8744
696,20.86521
695,20.8653
699,20.8777
The print, in python, would be print(GSR+","+Temp)
...
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votes
2answers
73 views
I²C only works when I short-circuit my Arduino
I'm trying to connect an Arduino Nano with a Raspberry Pi 3 via I²C.
This is the small test-program I found and used for I²C.
#include <Arduino.h>
#include <Wire.h>
void setup() {
...
1
vote
0answers
59 views
Arduino controlling a heavy solenoid water valve
So after burning up a couple Arduinos, I'm running out of ideas...
I am trying to power both a Solenoid valve and the Arduino(nano) with the same 12V-2amp power supply. I've tried it with both a ...
1
vote
1answer
225 views
How can I power an Arduino Nano with a LiPo battery, preferably 3.7v
I am a newbie to Arduino, so please bear with me. I am trying to figure out how to power an Arduino Nano with a LiPo battery. I want to use a 3.7v if possible, as my project needs to be lightweight. ...
-1
votes
1answer
56 views
Arduino Nano - Upload verification error
I'm new to Arduino; and I'm trying to upload a simple sketch to a new Arduino Nano
I tried a few sketches (blink / helloworld / empty one); and changing the USB PORT.
Windows find the correct serial ...
1
vote
0answers
25 views
How can I read also the temperature with this GSR sensor?
Considering the GSR is the inverse of the Resistance, if I know the resistance and how much it increases for every celsius degree, the game would be done.
Here's how my code looks like at the moment:
...
0
votes
3answers
52 views
How can I exactly put my sensor at 4 Hz readings?
I'm using the grove GSR sensor: http://www.seeedstudio.com/wiki/Grove_-_GSR_Sensor with this code:
const int GSR=A0;
int threshold=0;
int sensorValue;
const long interval = 1000;
void setup(){
...
2
votes
2answers
183 views
Can I use two sensors with different baud rate without problems on arduino?
One sensor has a baud rate of 115200, the other 9600. I think this will create problems in the serial because I can only choose one baud rate.
What do you think?
The first sensor is the pulse sensor, ...
