Questions tagged [arduino-nano]

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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Rotating a motor with L293D

I'm following this tutorial to control a DC motor with an Arduino. I have the same problem as this stackexchange post arduino.stackexchange.com/questions/10049/problems-with-l293d where the motor is ...
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Blink question with breadboard & LED

I tried a basic Blink example and I found a strange case where : Works Does not work Can someone explain me what is happening ?
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Arduino power sources

Is it safe to connect a USB input to an Arduino (Nano) at the same time as an external regulated 5V supply to its 5V pin is connected, assuming the supplies have common grounds ? Will (I hope) the ...
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Arduino Nano Max Current Draw best Motors

I know that the Arduino Nano cannot source more than 40ma per pin. My question is there any type of motor or continuous rotation servo that I could use four of to make a robot without making the Nano ...
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463 views

Convert INT to Array of Strings

My sensor outputs an int. I would like this to be an array of strings so I can send it with my 433MHz transmitter. Converting an int to a string to an array of strings seems to be extremely ...
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Why are Arduino clones cheap?

You can buy Arduino Nano v3 clones from Alibaba at the cost of roughly $2-$3. I have calculated the cost for fabricating and all the parts in the BOM for Arduino Nano V3, and it ended up costing ...
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433MHz sending not receiving

I'm trying to send data using these cheap parts. When I check the voltage on the data port of the transmitter, I see what I expect, 1.2 and 0.6 fluctuating while sending. But when I check the ...
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169 views

How to connect MCP4141 digipot and a data logger shield to the same Arduino board

The main problem here is that they both need to communicate via the Arduino's SPI bus, and I know that each of the two devices will need its own CS pin (The data logger is hard wired to 10, so the ...
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146 views

Computer to multiple arduino bluetooth modules

Im going to take part in a competition called IEEE Very Small Soccer and I need to set up a communication between my computer, that will run visual and strategy algorithms, and send some commands to 3 ...
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Arduino IRremote stops working

I'm using a standard 38kHz receiver with Arduino-IRremote library and it works fine for a while but then it stops working. The loop function is running time after time as expected but at some point ...
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275 views

How to network multiple Arduinos so they react to the same signal

I want to build a project that contains multiple Arduino nano's, each connected to one controlling Raspberry Pi. I would like to send one signal (a string of characters or numbers) which would be the ...
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Arduino nano stopped working

After programming Arduino Nano with the DIY Headtracker code, after trying to plug the Arduino to the receiver and some time, the LED stops flashing and now it's not recognized by the computer anymore....
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Using an Arduino Nano, how many LEDs can I safely power?

I am working on building a wordclock using one of the several design ideas that you can find all over the Internet. Something like a mix of this one: http://www.instructables.com/id/Sleek-word-clock/ ...
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how much current does Arduino Nano draw when only using 8 digital pins?

I want to connect an Arduino Nano to an Intel Minnowboard Max (it's like a Raspberry Pi). I know Arduino can draw up to 500 mA current through the USB connection. Since I already need the USB to ...
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708 views

make Arduino tell when the Python program stops reading from the Serial (crash, etc)

Here's the Arduino code: void setup() { Serial.begin(9600); pinMode(7, INPUT_PULLUP); } void loop() { int val = digitalRead(7); if (val == HIGH) { Serial.print("1"); } else {...
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How to know which Arduino to choose: Nano, Micro or Pro Micro?

I'm puzzled at the moment with which one to choose. Form-factor plays a significant role in my project, so I prefer the smaller boards mentioned in the title to fuller boards like the UNO, MEGA, etc. ...
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687 views

how to build rc transmitter and receiver with an old rc transmitter

I've got an Arduino Mega, an Arduino Nano, two NRF24L01 wireless modules and a old Multiplex Transmitter system. I want to get the PWM signal and send it to the other arduino which should control the ...
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770 views

Choose the correct solar panel and battery for solar use

I am planning to build a weather station powered by solar power. I want to use an Arduino Nano because it's low power requirement. I want to connect some basic sensors to it (temperature, humidity…) ...
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Error in code saying “expected primary expression before ”<“ token” and other errors

I am Creating a laptop controlled robot using an arduino nano using the instructbles. I have tried running the code but it is throwing back lots off error and the main one is "expected primary ...
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What is the Arduino Nano maximum wattage?

Hello, I am currently working on a DIY project and I would like to know the Maximum Wattage of a Arduino Nano with a ATmega328 processor. If anyone know what it is it would be a great help. Ricky
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ESP8266 wifi module sending data via jQuery

Hey all I have the ESP8266 module and I have already set it up and it's working good. However, when I run this HTML page code here: <html> <head> <title>ESP8266 LED ...
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912 views

Fried two Arduino Nano's but works when powered

It took me about 4 hours to desolder an Arduino Nano I fried and solder on the new one. I'm not exactly sure how but I shorted it somehow while trying to install the nano onto my robot. I could smell ...
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Arduino Robot Chasis [closed]

I am looking into building a robot with my Arduino Nano but I don't want to shell out more then 50 bucks. Does anyone have any suggestions for a four wheel robot chassis at this price that I could use ...
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How to interface arduino nano with sim900A?

I have arduino nano and sim900a modem. Rx(pin30) and Tx(pin31) pins of arduino shows 3.8VDC respectively and Rx and Tx of SIM900a shows 3.6VDC and 2.8VDC respectively. Could i connect the SIM900a ...
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Smallest package possible reading microSD

I have a project running on an arduino nano, and as part of it, I'd like to read from and write to a microSD card. My problem is that the microSD shield for it doesn't fit my form factor (think ...
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Function generator with Arduino Nano

I'm trying to convert the project here to an Arduino Nano. I scaled the waveforms from 12 bit to 8 bit values. I replaced the analogReadResolution and analogWriteResolution calls with pinMode(10, ...
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How to make an RC mixer with the arduino

I want to make a RC mixer mixing two channels of a receiver. What I have: a delta model plane, two servos, a receiver and a Arduino Nano. So I'd like to mix the aileron (two channels) with the ...
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820 views

Arduino IR not returning data

THIS QUESTION ISN'T IN USE ANYMORE Solved by using an other remote that is supported by the libary ====NEW CODE==== #include <IRremote.h> int RECV_PIN = 11; int relay1 = 2; ...
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798 views

what ftdi windows driver for arduino nano

at http://www.ftdichip.com/FTDrivers.htm they seem to divide chips into two categories, FT4222H vs. D2XX driver. What's the correct for a arduino nano?
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Car dome light fading with arduino nano

So I'm working on my car and now I've got my sights on the electrical system. I've installed a keyless entry system and a pulse timer for the dome light. Now, I'd like to give the dome light the fade ...
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Best Header for Arduino Nano

I would like to be able to create permanent projects with my arduino Nano but be able to remove the nano in order to use it in other projects. The arduino Nano has 30 pins so I would be looking for ...
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686 views

Converting Arduino LCD Programs to Serial I2C LCD code

I just got a Serial LCD and wanted to test it out with a game. I found this site with game conversions and wanted to use this game. However since my serial LCD use the LiquidCrystalic2 library the ...
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Arduino voltage drop while communicating with another Arduino

I have an Arduino Uno rev 3 and an Arduino Nano in my Setup. I want to create a proof of concept, where one Arduino triggers the other via the Digital IOs. Arduino 1 sets a blinking signal on a ...
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interrupt and/or other ressources used by Time functions micros() and delayMicroseconds()

I want to use Arduino Uno (Rev. 3) resp. Arduino Nano for time critical ignition control of a combustion engine. Software is developed under arduino rev. 1.6.2. The only Arduino system functions i ...
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429 views

Arduino Nano For Home Automation

My question is about the arduino Nano or Micro and the smallest and cheapest way to control a bigger power source. I would wire it with a socket so that I could send a command from the board and a ...
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1answer
618 views

Arduino Nano Motor

If I had four of these motors and attached them to the Arduino Nano on four separate digital pins or analog pins without transistors and a 9v power supply attached to the regular power supply input ...
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236 views

Atmel Studio and Arduino IDE compiles the same code different

Before going in details I need to say I am trying to program Arduino Nano board with atmega328p. Here is my code in Atmel Studio; #include <avr/io.h> #include <string.h> #include <avr/...
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Device manager sees my nano as FT232 USB UART not as COM port

Until yesterday I had 2 arduino nanos (atmega328, 16Mhz, 5V), and they worked fine,when I changed the cable and was able to upload code to them. Then I tried to make a breadboard arduino, but my PC (...
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delay() vs delayMicroseconds()

I just started using Arduino and so far I've used both delay() and delayMicroseconds(). I was wondering what the difference between these two is, because it seems to me that they're the same.
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Send array of Infrared codes

I'm having a bit of a problem when sending IR Codes stored in variables. I swear I had this convered up already. I don't actually know the reason why I can't use variables in the first place. I ...
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Arduino program wont work properly for some reason

I have a arduino program that I wrote with my teammembers. We are working on a project and try to move a RC car. Here is our code. int forward =12 ; //assign to correlating pin attached to TP06 int ...
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How do i wire a switch to control Leds on a arduino nano

I am wiring some LED's with buttons to trigger them but i don't know if i have the wiring right? Code /* switch * * Each time the input pin goes from LOW to HIGH (e.g. because of a push-...
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Using Arduino Nano as USB Host

I'm pretty new to microcontrollers and Arduino and since I can't find any satisfying information on my problem, I hope that you might answer them: My project is actually quite simple: I just want to ...
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794 views

What sensor would I use to get the speed or velocity of my Arduino based nav system?

I'm building a Arduino Nano based underwater navigation system using an IMU and various sensors. The only problem with this is that I cannot get the speed or velocity(at least reliably) and it would ...
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375 views

Speeding up Girino gives strange readouts

I was reproducing the Girino (the Instructable by Caffeinomane) bundled with the Girinoscope (the Java GUI by Chatanga). The results worked well and I went on to see if the oscilloscope can go up to ...
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381 views

RF missing characters

I've got two arduino nano devices connected via RF 433 MHz. The modules are MX-05V and MX-FS-03V. I'm using VirtualWire for sending and receiving. The speed is set to 1000 bps. One has got a pir ...
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Sketch not giving feedback as predicted switching from Arduino Uno to Nano

I have a sketch that works just fine on my Arduino Uno board, but somehow mess up, when I try to retrieve data from a Nano Board. I have wired a TCS230 color sensor, to get data about some colours. I ...
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Arduino Wire Types?

I don't know what wires to get for my first Arduino project. I am planning on getting a pre-made light strip that I would control with an Arduino from across my room. Is there any specific type of ...
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410 views

Arduino Nano and a 3.3v Ethernet shield

I plan on purchasing a Nano clone, an Ethernet shield (ENC28J60), an LCD and a DHT22 humidity + temperature sensor. This will be used in a wine cellar to monitor relative humidity and temperature. ...
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How do you wire a ssr relay to a arduino nano

I am trying to wire a fss1-102z 5v ssr relay to my arduino nano but i cant get it to work here is my circuit. It stays stuck on and i cant get it to turn off. Bluetooth control code char val; ...