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
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2answers
33 views
Max current of Vin and 5V pin on Arduino Nano
What is the max current of the Arduino Nano's Vin (30) and 5V (27) pins?
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1answer
32 views
Does SoftwareSerial use timer hardware?
I'm asking this because I'm using a timer to generate a 38KHZ signal to drive an IR diode, and I also need to use SoftwareSerial to talk to an HC-12 radio using serial communication.
The code I'm ...
0
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0answers
24 views
Arduino Nano BME280 weird values
My goal is to measure temperature, pressure and humidity using my Arduino Nano and the BME280 (GY-BME/P280).
To do this I use this library from SparkFun and that works almost. What I notice is ...
1
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2answers
22 views
Can I set arbitrary SPI clock speeds?
I would like to interface an ADC (in particular this one: http://www.linear.com/product/LTC1400) with an Arduino Nano via SPI. The specified max clock speed for the ADC is 6.4 MHz. The Nano can do up ...
1
vote
1answer
25 views
Brownout with arduino nano controlling 2 motors with 6V?
I'm making a mini RC car with an Arduino nano and wireless communication with RF433, with 2 motors with 2 motor drivers (L293D). I use 4 1.5V batteries to power the arduino nano and another 6V battery ...
0
votes
1answer
24 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 ...
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2answers
21 views
Vin and Ground pins shorting only under specific conditions
So I have an Arduino Nano that I think might have gone bad. The Vin and ground pins are shorting (I'm checking continuity with a multimeter). But it only shorts when:
The Arduino has power
The red ...
0
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0answers
13 views
Connecting a sensor to the 5V pin shorts Arduino Nano
I bought an ultrasonic distance sensor seen here: http://arduinobasics.blogspot.co.uk/2012/11/arduinobasics-hc-sr04-ultrasonic-sensor.html?m=1. As per the wiring diagram I connect it to the ground and ...
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2answers
29 views
Seven segment display multiplexing
I have written a code that displays a number into a seven segment display without manually setting the Arduino pins HIGH/LOW for each number. Now, my problem is how can I display a number larger than ...
-1
votes
1answer
20 views
How compact, small and smart a fluid detector need to be communicate with external systems?
I like to build a fluid(liquid) level detector using Arduino that can send 2 types of information:
Status of the Fluid Container (Empty,Full or Below Required Level)
Location of Fluid Container
Now ...
0
votes
1answer
26 views
Automatic subtle colour changing on ws2812b with arduino
I'm creating a wordclock and I'd like to change the ws2812b led strip color slowly, so that it fades from one colour to another. However, I'm new to arduino and I can't get it done and I also could ...
0
votes
1answer
36 views
Bot not activating after button press
This bot is supposed to begin moving forward when the button is pressed, and stop after counting 3 lines of tape on the ground. Currently it is set up to scan the color of the floor at the beginning ...
0
votes
1answer
67 views
Expected ')' before ';' token Error
Me and my friend have a project to do and we can't seem to figure out why the code we used for our Arduino Nano Board isn't compiling giving us the Expected ')' before ';' token Error
Here is the ...
0
votes
2answers
30 views
I need a simple, low power, low cost wireless switch to transmit to Arduino
I'm looking for a very simple wireless, low-power, low-cost switch that can transmit a signal to an Arduino. Ideally, each transmitter would have a signature. For instance, let's say I had 4 different ...
0
votes
1answer
30 views
Why is my Serial port not printing the right output?
am working with and Arduino nano and according to this, I can append strings to numbers by doing: stringThree = stringOne + 123; but
when I do:
sensorValue = analogRead(A0);
String x1 = "{\"Volt\":"+...
1
vote
1answer
36 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 ...
0
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0answers
34 views
Using HC-12 radio on UNO or NANO without software serial
On the Arduino UNO and NANO with the serial port connected to an on-board device connected to a USB port, I can obviously send and receive messages to the serial console......now the question:
I have ...
1
vote
1answer
60 views
Arduino Nano nRF24L01+ DFPlayer Mini SPI Problem
I'm working with an Arduino Nano board clone (CH340) on wireless control of DFPlayer Mini, transceiver sending a Struct variable with MachinePrefix (just in case), sound type (I have more folders by ...
0
votes
1answer
38 views
Weird characters at the end of LCD
I have written a simple sketch that displays temperature and humidity on a 16x2 LCD. Here's its output:
Temp: 28▒▒
Humidity: 68▒▒
The library I used for DHT11 sensor is not from Adafruit. This is ...
-2
votes
2answers
37 views
DS18B20 and Arduino - Internall Pull-Up [duplicate]
Can this DS18B20 sensor be used with Arduino internal pull-up or it require exactly 4.7k pull-up resistor?
0
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0answers
26 views
Is there a module for driving 2 stepper simultaneously?
I'm looking for a module (not a shield) to drive 2 stepper motors simultaneously. The solution I found for now is 2 TB6612FNG modules, but if someone knows something that can work with 2 steppers ...
0
votes
1answer
28 views
Can I hook up an Analog multiplexer to Arduino Nano?
I want to increase the analogue inputs for the Nano. So is it possible to hook up a CD74HC4067 analog multiplexer to it?
Thanks.
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votes
1answer
64 views
conflict I2C with 2
hi i have some trouble to connect my 2 arduino nano with i2c standard,
i have this configuration
SLAVE RECEIVER nano with DS1037 i2c and LCD 16x02 i2c
MASTER SENDER nano .
After some time the SLAVE ...
4
votes
2answers
72 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 ...
0
votes
2answers
59 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
votes
0answers
47 views
High or low for digitalRead
I am running into trouble with some arduino Nanos.
I have destroyed 2 of them with a prototype circuit.
I believe the problem is pins being shorted out.
I have a button and a magnet sensor ...
0
votes
0answers
58 views
sunrise alarm clock using android to set alarm time
I'm trying to create a sunrise alarm clock, controllable via Bluetooth by my phone (running android marshmallow) with an Arduino nano, real time clock module, and Bluetooth module. these will then ...
0
votes
1answer
57 views
Which timer does Arduino Nano use for each PWM pin?
I'm unable to find which Timer controls each PWM pin (3, 5, 6, 9, 10 and 11) in an Arduino Nano Board (ATmega328).
Any guesses?
Thanks in advance,
Eduardo
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votes
2answers
51 views
Is there a way to keep a program on the Arduino after uploading new sketches?
I am looking for a way to keep a program on my Arduino Nano 3.0, after uploading new sketches on it. I would like to have a program on it that will control th screen and buttons at it. The user will ...
0
votes
1answer
28 views
Writing to a SPI memory
Recently I salvaged a BIOS chip (EN25QH16) which has 2 Megabytes of memory (8192 pages, 256 bytes/page). I followed this instructables and it works. I double checked the opcodes because the code is ...
0
votes
2answers
62 views
Failing to write to SD card using SD.h
Using a knockoff Arduino Nano (pinout seems to be the same), I would like to record data to an external SD card. I have everything hooked up (correctly I think) but I continue to fail to initialize ...
1
vote
2answers
77 views
Powering up LED strip - How many amps?
I want my Arduino to drive a LED strip.
The LED strip in particular is the 3528 non-waterproof type.
To power this up, I need a 12V power supply.
My LED strip is going to be 5 meters.
Now my ...
0
votes
1answer
21 views
Set pins to LOW over time
I've written a simple sketch that adds threshold to an PIR sensor. If the PIR sensor sends 3 HIGH ex. HIGH...LOW...HIGH...LOW...HIGH (The LOW == no movement) it will trigger and alarm.
I want to ...
0
votes
0answers
10 views
Arduino and Bluetooth interface
Can i use one bluetooth module with two arduinos at the same time for different purposes. 1. for voice controlling the robot
2.for running servos for robotic hand(3 servos) and for ...
1
vote
2answers
69 views
Graphical programing language for Arduino
I am looking for a graphical programming language for a project of mine, where I am using an Arduino.
It HAS to meet the following conditions:
It supports uploaing sketches to ATmega328 (Arduino Uno/...
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votes
0answers
10 views
Some arduino Nano pins not working
Complete Arduino newbie here, so be gentle. I have an Arduino Nano, and I need to use 20 GPIO pins on it. PD2 and PD3 are used as USB D+ and D- with V-USB, and then I need 18 pins. Pins PD4-PD7, PB0-...
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votes
1answer
21 views
Weird text when pressing a certain touch button
I have written a code that remaps the 16-Key touch keypad. When 2 key is pressed, it writes weird characters in the serial monitor even on my 16x2 LCD
But the other keys work fine.
Here's the code:
...
4
votes
1answer
232 views
No power from Breadboard Power Supply Module
Components
Breadboard Power Supply Module IM120525004
1 kOhm resistor
Green LED
Arduino Nano
LiPo 7.4V battery
LED Lights Up Fine with USB power from the Arduino
LED Does Not Light Up with power ...
0
votes
1answer
32 views
Better way to remap 16-Key Touch keypad
I have written a code that remaps the buttons of TTP229 touch keypad which works as it is. Is there any way to optimize this code:
#include <Wire.h>
#include <LCD.h>
#include <...
0
votes
1answer
19 views
Touch-screen, 3 H-bridges and 3 sensors on Arduino Nano 3.0
I am using an Arduino Nanao andI am wondering if there is a way to connect an 2 inch touchscreen, 3 H-bridges (it takes 3digital pins to power one of them and 1 additional to control the voltage) and ...
0
votes
2answers
40 views
Arduino Nano 3.0 dimensions without the pins
I think the title of this question is quite clear. I am looking for the exact dimensions of the Arduino Nano 3.0, with the electronic components and the USB mini port on the IC (the Atmega328 one), ...
1
vote
0answers
58 views
How do you debug SPI connected devices?
EDIT: Changed the title to better express what I'm after.
I've been dabbling in connecting two Arduino Nano 3's with the RFM69HCW breakout for the past 5 days.. but got nowhere.
I've followed the ...
0
votes
2answers
49 views
How many modules can an Arduino Nano v3 support (in code)?
I'm planning to use an Arduino Nano v3 for a simple project plus some devices like capacitive touch buttons, an LCD display and a Bluetooth module on an I²C. Will these devices require (like classes ...
0
votes
2answers
28 views
Arduino Nano 3.0 and Arduino Uno Benchmarks [closed]
What are the benchmarks (MIPS) of an Arduino Uno (ATmega32P) and Arduino Nano 3.0 (Atmega328) @ 1.6MHz?
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0answers
22 views
use arduino mega program in nano
I'm migrating an arduino mega2560 tested program to arduino nano.
I have a "case" based switch for some options. I found a problem with the input through serial. It seems doesn't work as it did in ...
1
vote
0answers
145 views
UART from Arduino to NodeMCU
I'm trying to connect an Arduino nano to a NodeMCU 1.0 via the hardware UART, in order to send information one way from the Arduino to the NodeMCU (and from there to the network). I'm connecting the ...
-1
votes
1answer
21 views
Motor shield for Arduino Nano ATmega328
I am looking for a cheap and not so space consuming motor shield for my Arduino Nano ATmega328. I would like to charge the whole thing with a 9V battery. The shield must have at least 2.1A of output ...
0
votes
2answers
39 views
Two signal with delay
I have a two pins for two blinks leds but I need delay the second signal from first. I start the first signal and I need start the second signal 50ms later. The first signal is 500ms HIGH and 500ms ...
0
votes
2answers
24 views
Power issues with RFDuino
I am new to hardware, I have always used plug and play shields to accomplish simple projects. A while back I purchased RGB LED Shutter Shades from Macetech. I got the hacker version thinking I would ...
0
votes
2answers
94 views
How to add extra USB port to Arduino Nano?
I'm trying to use V-USB library to emulate a keyboard using Arduino Nano but because of precaution, I don't want to use it's built-in USB port.
My idea is to add another USB port so I cant power my ...
