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
0answers
18 views
NRF24L01 - C# Servo Motor Control
I'm making servo control (for robot arm) with c# for now. But, i want remote control (NRF24l01) for this control. I wrote a few code but didn't work. Where's mistake?
I used the code without ...
0
votes
1answer
23 views
2 Direction Motor
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
votes
3answers
36 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
23 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
37 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 ...
0
votes
1answer
15 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 ...
0
votes
1answer
32 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
...
0
votes
0answers
20 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 ...
0
votes
1answer
22 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 ...
0
votes
0answers
42 views
Nano clone not working over USB, no data, no power, but can power via Vin (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 ...
0
votes
2answers
25 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.
0
votes
2answers
37 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
17 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
31 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
57 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 ...
0
votes
0answers
19 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
35 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 ...
0
votes
0answers
26 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
24 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
41 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 ...
1
vote
0answers
37 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
28 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
34 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
26 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
84 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
68 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
27 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
87 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
42 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
22 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
50 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
111 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
65 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
47 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
48 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
47 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
45 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
55 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
26 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
30 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
63 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
133 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
65 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
52 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
43 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
49 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
169 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 ...
