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.
0
votes
1answer
9 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 ...
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)
...
0
votes
2answers
57 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() {
...
0
votes
0answers
12 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
27 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. ...
0
votes
1answer
24 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 ...
0
votes
0answers
15 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
45 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
62 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, ...
4
votes
0answers
48 views
Why does pulse sensor shows gaps when I move it?
I modified the serial code in this way and I don't think the gap is produced by my edit even because it made it even before:
//////////
///////// All Serial Handling Code,
///////// It's ...
0
votes
0answers
37 views
Arduino Nano - 5V pin drops to 3.3V when load is connected
I have a Nano (with ATmega328) board that I am using along with a GPS module, an LCD and a potentiometer to make a small GPS unit that will tell the location. Long story short, when powered externally ...
3
votes
1answer
35 views
LM335Z temperature sensor gives very varying values
I'm trying to get consistent values from the LM335Z temperature sensor. But it behaves very strange.
I'm using an arduino nano and it's powered via USB from a Raspberry Pi. The circuit also has two ...
0
votes
0answers
36 views
Why the pulse amped code doesn't work with arduino nano?
Code source: https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino
In the serial I see undefined characters and not the HR.
I think one problem rises here:
1) Blinks an LED to User's ...
0
votes
0answers
28 views
How can I run the code for one wire temperature sensor with a grove hat and arduino nano?
Here's the code:
http://nearbus.net/wiki/index.php?title=One-Wire_Temperature_Sensor_-_DS18B20
here's the grovehat config:
http://i.imgur.com/H1cOt1o.png
in the code I tried to change the 10 of the ...
0
votes
1answer
49 views
Why can't I see the serial plot with the following code for arduino?
const int GSR=A0;
int threshold=0;
int sensorValue;
void setup(){
long sum=0;
Serial.begin(9600);
delay(1000);
for(int i=0;i<500;i++)
{
sensorValue=analogRead(GSR);
sum += ...
0
votes
1answer
21 views
My Arduino Nano clone doesn't show in the serial this simple code. Why?
Here is the code:
void setup() {
Serial.print("hi");
}
void loop() {
}
The product is in here.
I also installed the drivers.
3
votes
1answer
21 views
Risks of ftdi_eeprom? - TX always high after flashing
I flashed an Arduino Nano compatible with ftdi_eeprom and the following config:
vendor_id=0x0403 # Vendor ID
product_id=0x6001 # Product ID
max_power=0 # Max. power consumption: value * 2 ...
0
votes
0answers
35 views
Problems with serial communication from Arduino to Bluetooth HC-05
I just purchased some HC-05 Bluetooth devices and I have followed the directions to put the devices in AT command mode by holding EN HIGH when the HC-05 powers up. When I do this the HC-05 goes into ...
0
votes
0answers
58 views
Arduino nano esp8266 software serial problems
I have a problem with my arduino nano Atmega328 and my esp8266 01 module. I have connected the esp8266 on my arduino board with out ftdi.
I have made the following connection:
I an using a 5V ...
0
votes
0answers
27 views
Need some help with wireless tx/rx project
I am very new to this. I am trying to assist my son with a science fair project. The idea is to control a "dummy head" on basically a pan/tilt gimbal. We were able to make a headtracking unit with the ...
1
vote
1answer
51 views
Random Blink LEDs
How can I make LEDs blink randomly?
I found a piece of code, but it is not working for me. I probably need something other than setPixel(), but I don't know what.
I am using the Fast.Led library ...
1
vote
1answer
33 views
Turning all leds on (FAST.LED)
In Fast.Led lib for arduino there is a code to turn off all leds
FastLED.clear ();
Is there also a shortcut to turn all leds ON, and with a specific color
-1
votes
1answer
28 views
nRF24L01+ not working with 9V battery and Arduino Nano
My nRF24 module worked fine (transmission/reception) with an Arduino Nano when attached to the computer's USB cable. But when I power the nRF24 module with a 9V battery and connect it to the Arduino ...
0
votes
1answer
37 views
Strange Results trying to count pulses
I am now hopelessly stuck and need help please.
I am building an automated observatory and now at the stage of trying to control the observatory dome rotation. The dome is rotated using a step motor ...
0
votes
3answers
129 views
Programming Arduino in Pascal?
My question is simple: there is any Pascal or Pascal-class (FPC, Delphi, mikroPascal) programming language for Arduino?
Preferably (I hope I don't ask too much) that language should not be older ...
1
vote
2answers
31 views
Digit LED has single input, multiple outputs for each segment. Concerns about “sinking” 5v supply into digital pins
The model name is 5161BS
Pins 3/8 are input and the rest are output for each individual segment.
I have connected pin 3 to the 5v pin on the Arduino, and the rest to individual digital pins.
With ...
1
vote
1answer
26 views
nrf24l01+ with antenna problem
I just got 4 nrf24l01+ modules with the external antennas, but I'm not able to make them work.
I'm using arduino nanos and MySensors to create a gateway and a sensor.
The funny thing is that when ...
1
vote
1answer
37 views
Brand new to Arduino, and can't even make an LED blink
So I'm going through Getting Started With Arduino. I skipped to making a LED blink when you press a button.
First I wrote the code, then I copied it directly from the .pdf I have, neither has worked.
...
1
vote
0answers
32 views
Unable to upload code on Arduino Nano
My Arduino Nano v3.0 (made by Gravitech US) is behaving in an unexpected manner. Whenever I try to upload a simple Blink program on the board it always give error which is shown below.
avrdude: ...
0
votes
1answer
28 views
Digital Input with long cable - flickering values
I have an Arduino Nano with two attached Motion sensors "PIXNOR HC-SR501". This sensor puts 5V on its middle Pin, when it detects motion. I have connected this Pin to my Arduino and read the value ...
0
votes
2answers
47 views
How to sync multiple arduinos?
I'm making a posture control experiment in which a series of images (stimuli) are presented to a person and I'm trying to measure the displacement of this person as a result of these stimuli. To do so ...
2
votes
3answers
25 views
What type of hardware could make a ball tilt or roll?
I wanted to know what type of component or module I could use to make a hollow ball move. I have these hollow plastic balls (think empty easter eggs) that I was going to put a nano in and a sound ...
0
votes
1answer
34 views
Power Arduino Nano with OTG cable
I have a project that I am putting an arduino nano in an enclosed box that will light leds in a pattern. I am planning to power it with a 5v power brick but I would like to build a way a update the ...
4
votes
2answers
169 views
How to use a Bi-color matrix led 8x8 with 24 pins?
I've just buy this 8x8 LED matrix WLG M20088A/BEG and I'm trying to light all the LEDs in one single color (green) but I don't understand how the 24 pins work for this specific model.
I know that ...
3
votes
2answers
58 views
Is there a way to upload precompiled code to an arduino?
My company is developing a programmable remote control car which is driven by an Arduino Nano. We would like a way for the user to install software updates to the arduino, but we don't want to give ...
0
votes
2answers
99 views
Did I fry my ESP8266 module or was it something wrong with it?
I was trying to connect my Arduino Nano to my home Wi-Fi. To do that, I connected my Arduino to ESP8266 module.
I connected pins
Arduino | ESP8266
3.3V | VCC
3.3V | CH_PD
D10 | RXD
D11 ...
1
vote
1answer
102 views
Physical dimensions(size) of the new MKR1000 board?
Anybody here knows the physical dimensions(size) of the new Aduino MKR1000 board?
0
votes
2answers
78 views
Arduino Nano no output on any controllable pins except for RX and TX pins
I have 2 Arduino Nanos which don't output anything on any controllable pins except for RX and TX pins. I used an LED which I have tested works on the 3.3v/GND and 5.0v/GND. When I try to control the ...
0
votes
2answers
68 views
How to upload a sketch via Arduino Nano
I have two Nano boards, but the first one seems the CH340 chipset was burn. :( ,
Nano v3, CH340 chipset but unable to identify after connect to my Mac using USB
Nano v3, FTDI chipset and in good ...
1
vote
2answers
45 views
Cannot disable interrupts
I am new to arduino.
Why does this not work the way it's supposed to?
Shouldn't it block all interrupts for 3secs after it received one from digi pin 2?
How would I accomplish this:
Running a method ...
-1
votes
1answer
69 views
Control brightness of 20 watt street LED light using Arduino
I have searched google and I now know that if we change the resistance, we can change the brightness of an LED, but I was wondering how to change resistance by using a micro controller.
0
votes
1answer
49 views
Can I power a 9g servo from an arduino nano with USB power only?
I want to run a 9g servo off of the pins from an arduino nano board, using only the 5v USB connection.
The servo specifically is a SG90, which I have measured a stall current of ~250mA - I don't ...
1
vote
1answer
59 views
Can Android phone can be used instead of( or with) Arduino as controller?
I am Android application developer and I want to modify regular toy RC car which can be controlled by Android phone. I want to use 2 Android phones: 1 as remote controller, 1 as controller in RC car. ...
0
votes
3answers
87 views
Arduino Nano, ICSP header and 595 Shift register
I'm trying to control a 4-digit 7 segment display with an Arduino Nano, but I'm getting something wrong. I'm using the ICSP header to interface with a 74HC595 Shift Register which is then connected to ...
5
votes
1answer
153 views
Precision voltmeter using Arduino
I am newbie, I need to measure precise voltage in range 0.00-0.80V, two digits precision.
The voltage will not be greater than 1V-1.2V.
I wonder if I need divider or not, I am sure that voltage ...
0
votes
2answers
34 views
Porting my project to multiple Nanos
I'm still fairly new to the Arduino world. I got myself a kit with a clone board couple of months ago and have successfully prototyped the project and got it to the state I want it to be. I now want ...
0
votes
1answer
128 views
ESP8266 cannot read DHT22
I am trying to build a WiFi humidity and temperature sensor. My board is a nodeMCU using the ESP8266 connected via USB. The board is working fine with various WiFi examples and various serial ...
0
votes
0answers
83 views
Cannot Upload to Arduino Nano (\\.\COM1": Access is denied.)
I cannot upload a sketch to an Arduino Nano from the Arduino IDE, my operating system is Win 7. When I try to upload, it gives me this error:
"avrdude: ser_open(): can't open device "\.\COM1": ...
0
votes
2answers
183 views
HC-05 Bluetooth Module - INQ-Command doesn't work
For a project I need to connect a Bluetooth Remote control with an Arduino Nano.
The Problem
I am trying to setup a connection to said Bluetooth remote Control. This device is visible! (I have ...
3
votes
2answers
94 views
Watchdog approach
I'm developing up a project that is designed to run 24/7 (an energy monitor) logging via wifi.
Due to a variety of considerations I've ended up with a design that links an Arduino Nano with an ...
