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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1answer
22 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 ...
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0answers
34 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
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1answer
27 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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2answers
41 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
23 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
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2answers
33 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 ...
0
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2answers
52 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
19 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
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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
63 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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0answers
8 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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1answer
20 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
224 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
29 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 <...
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1answer
16 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 ...
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2answers
28 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
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0answers
53 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 ...
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2answers
45 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
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2answers
25 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
21 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
63 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
20 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
35 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
20 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
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2answers
73 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 ...
1
vote
1answer
40 views
Can I detect with software when a PIR sensor is physically connected to Arduino?
I'm creating a circuit using an Arduino Nano + ESP8266 to allow LED remote (via mobile app) activation and configuration (RGB colour, timeout, etc.). The circuit also has an optional PIR sensor to ...
0
votes
2answers
66 views
How to run a timer every 12 hours (exceeding the max size of int) without an RTC?
I'm experimenting with a Nano, and trying to trigger an action around twice a day. I'm aware that it's not super accurate, but I don't really mind, as long as it's in the ballpark.
I've tried using ...
1
vote
1answer
70 views
How to make auto keyboard using arduino nano V3.0 ATmega 328P ?
I have an Arduino Nano v3.0 ATmega328p board. I want to make an auto keyboard that types in a string when its plugged in. I have googled and found that these chips doesn't support that feature unlike "...
0
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0answers
34 views
Parallel programming Arduino Nano fails - Device signature 0x60afc1
I created a "parallel programmer" DB25 to communicate with my Arduino Nano from this guide:
https://www.arduino.cc/en/Hacking/ParallelProgrammer?from=Main.ParallelProgrammer
I have an old computer ...
0
votes
0answers
35 views
How to split a string in substring? [duplicate]
I have a python background and know how to do string manipulations there. Coming to arduino (C++) I kind of doesn't feel comfortable doing simple stuff that I know in python because it's more low ...
1
vote
2answers
67 views
What is an easy way to power a 3.3v BMP-180 barometer board from a 5v Arduino Nano?
Scenario:
I have a functioning weather station (temp/humid, MQ-2 smoke sensor, anemometer), and want to add a barometer. The weather station is outside, linked to my inside display and RTC by the ...
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0answers
42 views
stepper motor doesn't work
I removed a bipolar stepper motor (4 wires) from an old dvd writer and I connected it to an arduino nano. I know that I need a stepper motor driver (H-Bridge) to make it work but after some search (...
0
votes
1answer
82 views
Cannot assign COM port to HC-05 bluetooth device
I can't set a COM port to my paired BT module. For better understanding I recorded a YouTube video to make sure I show everything.
Hardware:
Arduino Nano knock-off by RobotDyn (atmega168)
Bluetooth ...
4
votes
1answer
84 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 ...
1
vote
1answer
42 views
Arduino Nano periodic reset under program control?
Is there a way to cause a periodic reset of an Arduino Nano under program control, short of some kind of external relay that signals the RST pin?
I'd like to do a full reset triggered by a digital ...
3
votes
1answer
50 views
I2C collision detection
I have put together a system that uses multiple Arduinos and a couple of 20x4 LCD displays to monitor my PV sun tracker and a weather station. I am using I2C to link them all together. One of the ...
0
votes
1answer
81 views
Does the SIM800L works in the US?
I want to know if the SIM800L works on US soil? I can´t get it to work on the H2O network! Does it work wit ATT or I only need the APN settings? If so what are the commands for data connection and ...
1
vote
1answer
53 views
Arduino Nano (3.0) Use an USB Bluetooth stick
I was thinking to build a very small USB Audio Streaming device with aux output for an amp (I know they already exist, but I like the self invention). So I bought an Arduino Nano and a USB Bluetooth ...
3
votes
2answers
71 views
All of the sudden the Nano will not accept programming
I have been working merrily along with CH340 to make Com10 work. It has been working flawlessly but now I am getting various messages like it can't open the port then the programmer is not responding....
0
votes
1answer
28 views
clkI/O 256 & 1024 (From prescaler) not working with driving PWM on Nano board
I've been working with PWM in TIMER0 of my nano board.
So, it's working now and I know how to set OCR0A or OCR0B.
Then, I went to play with Clock Select Bits CS02 CS01 CS00 in TCCR0B.
0, 8 and 64 ...
0
votes
1answer
62 views
20x4 LCD will write but then won't update
I am controlling a solar tracker, and it needs to be reset every 10 minutes or it loses its mind. My program works fine, controlling power relays, so I have added I2C&Power to be able to see the ...
0
votes
2answers
88 views
Controling pump while displaying moisture value on a LCD at the same time with soil moisture sensor?
I'm new with Arduino (and I'm not very good at English). Recently with Arduino Nano I have tested:
Control water pump based on soil moisture (using relay) (1)
Display soil moiture (in percent) on a ...
1
vote
2answers
41 views
What is the best type of Arduino board for simple delivery robot? [closed]
I'm new to arduino, and I want to design a Simple Delivery Robot for Data Center, which has an arm to move items, and it follows line while moving.
I have no idea if there is a special arduino board ...
0
votes
2answers
76 views
Which arduino should i use for a very simple one pin “blinking led” type project?
I want to simply switch a relay like Majenko describes it for my last question. (time based switching of a relay)
That's the code I came up with based on the documentation:
int relayPin = 2; // pin ...
0
votes
2answers
66 views
Help Improving Debouncing
In short, I am attempting to debounce several buttons using something like a while loop instead of delays.
This code runs in a box with a series of buttons on it, if the correct sequence of buttons ...
0
votes
1answer
122 views
How do I clear sim800L buffer?
Let's say that I've tried sending an SMS directly from serial monitor or any kind of terminal. For whatever reason (syntax error, etc), my attempt fails. Now, I try sending it again, but this time by ...
3
votes
1answer
33 views
Self made microphone burns Arduino
I'm very new to electrical engineering and I'm trying to read microphone input with Arduino Nano. I've made a separate microphone module (based on this example) and plugged it into Arduino like this:
...
1
vote
2answers
110 views
smoke came out of Arduino Nano
I was working with Arduino and Xbee with LED, circuit LED + Servomotor
and doing testing for 5 hours (not continuously).
Then once I omitted the Servomotor circuit and I connected flex sensor, ...
0
votes
1answer
190 views
Arduino Nano and WS2812's
I am new to electronics and especially Arduino based products.I am currently trying my hand at using 5 segments of WS2812 rgb led's and using a Nano to control them.I included the picture below for ...
1
vote
1answer
96 views
Prevent 5V output on Arduino Nano 5V pin
I just made an addressable RGB LED strip controller but im concerned about if I'm going to break the thing.
I know it sounds vague so let me elaborate: there is an external power supply connected to ...
