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.
-1
votes
1answer
12 views
Javascript - Arduino - esp8266 - motor control
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.
...
0
votes
1answer
18 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 ...
-1
votes
0answers
14 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 ...
0
votes
0answers
17 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
8 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 ...
-1
votes
0answers
19 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
15 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 ...
-1
votes
0answers
33 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 ...
0
votes
0answers
23 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
25 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
27 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
23 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
1answer
33 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
63 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
13 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
47 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
32 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
48 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
75 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, ...
3
votes
0answers
57 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 ...
1
vote
0answers
40 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
39 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
42 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
33 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
50 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
22 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
23 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
42 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 ...
1
vote
1answer
85 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 without FTDI.
I have made the following connection:
I an using a 5V ...
0
votes
0answers
28 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
53 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
42 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
35 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
40 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
137 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
38 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
35 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
30 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
58 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
26 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
172 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
61 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
113 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
144 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
88 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 ...
