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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.

11
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2answers
11k views

What's the difference between all the Software Serial Libraries? Which one is Arduino Nano compatible?

There are so many Software Serial Libraries, what are the differences between them? And which one I can use with my Arduino Nano? For my Arduino Nano I need one Hardware Serial Port and one Software ...
16
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13answers
58k views

Arduino Nano uploading gives error: avrdude: stk500_recv(): programmer is not responding

I have a Arduino Nano (Sainsmart) that I'm trying to upload a sketch to. Under the Arduino IDE, the device selected was Arduino Nano w/ ATmega328. However uploading the sketch gives me the error ...
8
votes
5answers
47k views

How to change baudrate of ESP8266 (12e) permanently?

IMPORTANT: DO NOT USE AT+IPR=9600! (see update) I have an ESP8266 12E module that communicates at 115,200 bauds. Since I use it with an Arduino Nano with SoftwareSerial things get messy. So I found ...
1
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3answers
42k views

Arduino Nano v3.0 with ESP8266

I am attempting to connect and use an ESP8266 board with my Arduino nano v3.0 and I am not have much luck. I have read a bunch of tutorials and articles, the most recent is http://elektro-blogger....
0
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1answer
123 views

4WD rover not moving

I am trying to make a 4WD vehicle. I have uploaded the code, all connections are OK and I have used L298N and HC-05. But when running the Bluetooth app, the motors do not rotate. I tried with both an ...
1
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2answers
2k views

Arduino I2C communication between Raspberry Pi

We are trying to communicate between multiple Arduino's (in this example a Nano and a Mega) and a Raspberry Pi. The Raspberry pi is defined as master and the Arduino's as slaves. We would also like ...
1
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1answer
2k views

What could make an LCD stop working permanently after being connected for 5 seconds to Arduino?

I was using a 20x4 LCD connected to Arduino Uno via a common I2C adapter board. Everything was working perfectly, including the LCD. I had it running like this for a couple of days without any ...
1
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1answer
17k views

Arduino nano as HID Keyboard

I'm a bit of a noob in the Arduino area but I found an Arduino nano I bought a long time ago sitting on my shelf and collecting dust, so I taught "why not make a project". I game a lot of racing ...
-1
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1answer
44 views

12 V relay using Arduino [closed]

I want to control a 12 V relay using an Arduino 5 V signal, but due to some unknown reason the relay does not work. I am using a BC548 transistor as a switch for relay. Please suggest where I go wrong....
26
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14answers
42k views

Most compact method of powering Arduino from wall socket

There are a lot of methods to power an Arduino from a large range of voltages: USB cable from PC or from a phone charger or an USB hub step down converters step up converters switching power supply ...
15
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1answer
20k views

Arduino Nano no serial port for MacBook Air 2013

Problem I have an Arduino Nano connected via a USB cable (Type A to Mini Type B) to my MacBook Air (Mid 2013 Model). The PWR LED is on while the arduino is connected. Opening the Arduino software, ...
5
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6answers
7k views

Using / calibrating pH sensor module

I've bought this sensor module board to link to an Arduino nano: http://www.ebay.com/itm/For-Arduino-Liquid-PH-Value-Detection-detect-Sensor-Module-Monitoring-Controller/321764233326 I assumed the ...
13
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3answers
57k views

What is the maximum power consumption of the Arduino Nano 3.0?

What is the maximum power consumption (in mW) of the Arduino Nano 3.0, when it is running in its default state (at 16MHz, no LEDs removed) and powered by an external regulated 5V supply so it bypasses ...
5
votes
5answers
432 views

Arduino-based mains frequency monitor

I'm looking to put together a simple mains frequency monitor based on the Arduino platform. The mains here are 250 V @ 50 Hz, but obviously these fluctuate slightly, which is the whole point of the ...
2
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2answers
8k views

Arduino Nano with Mac OS Yosemite 10.10

I have an Arduino Nano and I’m trying to use it with Mac OS Yosemite (10.10). However, I’m having issues with the data transfer between the computer and the device. The Arduino is powered (LED is ...
7
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3answers
22k views

Are there any reasons to pick Nano over Micro?

Nano is from 2008, and micro from 2012. Micro seems better on every parameter, in particular in having a better (I think) microcontroller, ATMega32u4, over ATMega328P. However, all the shops I've ...
6
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1answer
25k views

Arduino Nano not visible in Serial Ports (Mac OS)

I have used by Arduino countless times over the past few years and only after installing an update to Mac OS Sierra did the device stop showing up under the Serial Ports. Now only tty-bluetooth shows ...
4
votes
6answers
4k views

Arduino Micro just blinks, won't connect to PC

Edit - Sorry it's a Micro not a Nano I have a Micro board hooked up to an EasyDriver breakout using its 5V output to power the Micro. Today I plugged it in and instead of booting up like normal the ...
4
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5answers
2k views

Arduino Nano with CH340 reboots on OS X El Capitan

I installed OS X El Capitan beta on my Macbook. Now my Nano-sized Chinese Arduino operating on CH340 chip reboots the laptop when USB is unplugged. While plugged, it works fine, I can upload sketches ...
3
votes
3answers
3k views

Problem with serial driver for CH340G board

I bought a USB Nano V3.0 ATmega328 16M 5V Micro-controller CH340G board For Arduino and tried it with Arduino 1.6.6 on my MacBook Pro running OS X 10.11.1 The USB serial could not be seen. I searched ...
2
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2answers
3k views

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 ...
0
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2answers
3k views

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; ...
4
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1answer
596 views

Arduino Nano gives 7V on the 5V PIN!

I have an Arduino Nano which is Powered by an external Power supply. This is connected with VIN and GND. The voltmeter says, there are 12,12 V I have some components connected on the 5V PIN, which ...
4
votes
1answer
931 views

PWM multiplexing on Arduino nano

simulate this circuit – Schematic created using CircuitLab Its a simple project. I am trying to drive 3 RGB LEDs using Arduino Nano. Since Arduino Nano does not have 9 PWM pins, the only ...
3
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1answer
234 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 ...
2
votes
1answer
274 views

Interrupts Problem with Flow sensor

#include <Wire.h> //I2C lib #include <LCD.h> #include <LiquidCrystal_I2C.h> // LCD lib LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); const int pot_pin = A0; const ...
2
votes
1answer
607 views

ESP8266 disconnects after relay switch

the aim of the project I'm working on is to water my bonsai automatically, depending on numerous sensor inputs. So basically I have Arduino Nano with huminity and light sensor, a relay to switch the ...
1
vote
1answer
205 views

Run different code on different type of reset in arduino nano

I would like to program the arduino such that if I reset it by disconnecting and then reconnecting the usb.. A particular led glows BUT If I press the manual reset button on my nano... I want a ...
1
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0answers
52 views

Can't reprogram Arduino on protoboard (perfboard), but could program the same circuit on breadboard

So I have a circuit that works well when it's on a breadboard and without removing any pins I'm able to upload sketches, but for some reason when I transition it to a protoboard I can no longer upload ...
1
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4answers
2k 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 ...
1
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2answers
491 views

How can I use my Arduino sketches on my Raspberry Pi IDE?

I have installed the Arduino IDE 2:1.0.5 on my Raspberry Pi3 under Raspbian and am using a cobbler breakout which provides a nice breadboard. On that breadboard I have installed an Arduino Nano to do ...
1
vote
1answer
725 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'...
1
vote
2answers
2k views

Arduino Nano - programmer is not responding

I cannot seem to upload the simple blink program to my Arduino Nano. I keep getting the message: avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in ...
1
vote
2answers
13k views

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. ...
0
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2answers
194 views

Programming other Atmel chips(excluding Atmega 328 and 168)

How can we program any other chips of Atmel using Arduino Nano as a Arduino ISP ? Excluding the Atmega 328 and 168.
0
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1answer
174 views

Is the Serial buffer going from Arduino to PC and from PC to Arduino different?

I'm both sending and receiving strings to Arduino from my Python program on the PC and the opposite. I don't check by code if one is finished before doing the other. Are they seprate buffers, or is it ...
0
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2answers
368 views

Controlling multiple fans using arduino uno

I'm kind of new on the field of Arduino. Although I have a question concerning multiple fan connection on 1 arduino PWM pin. The goal is to connect around 8 to 16 fans on 1 arduino pwm header pin and ...
0
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2answers
8k 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 ...
0
votes
1answer
692 views

HMC5883L not working in continuous mode!

I'm just starting with the HMC5883L, I'm writing my code with C and also my own I2C library. I noticed that the values on the Arduino IDE's serial monitor are constant. Then I developed a function ...
0
votes
3answers
56 views

Read analog port set as output

I have a PWM analog port that is outputting a frequency, is it possible to do an analogRead on the same pin and get a correct value? If so, will reading that port disrupt the freq output on the pin? ...
0
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2answers
105 views

Read pc volume percentage?

is there a way to read the current pc volume? This is going to be a part of a project that I have in mind that is essentially reading curent pc volume value and giving it an RGB value (green=>30, ...
0
votes
3answers
2k views

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....
0
votes
1answer
244 views

HTTP POST/ METHOD to Emoncms doesn't work

So Ive setup the emoncms on my server and posted the example power1:100…power3:300 JSON POST and it logged in my INPUTS. Now Im trying to send data from my arduino and it seems to post fine, but when ...
0
votes
1answer
2k views

How can I update global variable within a loop from outside the loop?

I have this code, but its not working. If I type "ReportFRQ 1" (or 0) it reports back that FrqON variable has changed but the behaviour of the loop doesnt. Basically I am trying to switch parts of the ...