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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.

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423 views

Arduino nano clone problem with interrupt on falling edge on pin 2

I've s 1Hz square wave coming from a DS1307 SQW/OUT pin going into pin2 on the Nano that is set up as input with internal pullup enabled. I've set up the interrupt on falling edge but I can't get the ...
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7k 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 ...
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336 views

Can't reprogram atmega328p chips using nano as ISP

Using nano clone as an ISP on a breadboard- as shown here - http://www.martyncurrey.com/arduino-nano-as-an-isp-programmer/ Previously, it worked great. However, recently, chips that I have ...
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60 views

HC-05 and cheap Nano clone not powering on

I have a HC-05 module which works absolutely fine with an Arduino Uno. Because I need to reduce the size of it, I tried using an Arduino Nano. After correctly wiring it up to the Nano, sometimes the ...
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80 views

Why does I2C On Nano Fail with LiquidCrystal_I2C library unless Nano runs at 8Mhz?

I have an Arduino Nano (running by default at 16Mhz). I am connecting a 20x4 LCD screen via I2C (using A4 for SDA and A5 for SCL). Here's the very simple code (which was previously only showing black ...
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81 views

Serial to wifi using arduino nano and esp8266

I am trying to configure ESP8266 from Arduino Nano through software serial, after this I am sending some data through esp8266 to a PC (server). And I am lighting 3 leds, led #1 for AT ok, #2 for ...
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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 ...
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557 views

Arduino nano stk500_getsync() attempt 1 of 10: not in sync: resp=0xe1

I have been building a project using an arduino nano clone. It uses the CH340 chip. It worked perfectly, and a week later it now doesnt. When I want to upload code in arduino IDE I get the error ...
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102 views

Combining mysensors with SD card (on an Ethernet Shield v2)

I'm trying to combine a MySensors network with the usage of a SD card. Currently I'm working with the SD card reader on the EthernetShield v2. The NRF24L01+ chip I'm using is also using SPI but we ...
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563 views

Arduino GY273 HMC5883L Constant Value

I have a GY-273 which has HMC5883L chip(I guess). I am trying to get data I find a few codes and library(I don't have enough information about HMC5883L) but always all serial port screen there are ...
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146 views

ESP8266-01 system param error

I'm using esp8266-01 connected to arduino nano. Every time I tried to upload code to the esp8266 chip I get this error in the serial monitor: system param error 56 45 52 31 00 00 00 00 ff ff ff ...
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48 views

Ultrasonic Sensor returns com3 false

Im a very beginner with Arduino. Recently started with the blink code. Thats my only experience with these. Ive got an ultrasonic sensor (As in this tutorial http://howtomechatronics.com/tutorials/...
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3k views

Can upload programs to ESP8266 with Arduino Nano but not run them

I am trying to use my Arduino Nano to program my Generic ESP-01 Module. I want to use the module to control an RGB LED Light Strip but am not having much success, only errors.... These are my ...
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687 views

Manchester 433MHz Nano to ATTiny85

My transmitter is a Nano, the receiver is a Tiny85. I use a Logic Analyzer to check if stuff is moving, I can clearly see data coming in at the receiver. The receiver does not 'decode' the data, man....
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648 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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2k views

Sending data from Arduino w/HM10 to relay board with hm12

It all started when I tried connecting an hm10-nano to a relayboard which is bluetooth enabled. Here is my nano with the hm10 module: And here is the relay board's bt module, which looks like an ...
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73 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 Nano:...
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114 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: ...
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426 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 ...
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117 views

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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733 views

Arduino PWM LED blinking on four pins, each pin's intensity and time period based on the previous pin

I am trying to make four LEDs glow using my Arduino, based on some relationship between them in terms of brightness and the time for which LEDs glow. For example, the relationships are: pin_3_value =...
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70 views

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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124 views

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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152 views

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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20 views

Motion detection alarm that calls back

I need help. I am making motion detector that calls you when sensor activates and i have done the code for that, but the thing is i am beginner and i need to make it when it first time boots i send a ...
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26 views

More than 3 SPI devices read by a single arduino

I've been working on a project that involves SSI Rotary Encoders from CUI. They are being read through the SPI interface, and I am bit-shifting appropriately to account for the differences between SSI ...
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19 views

Arduino Nano with Arduin Nano Ethernet shield ENC28J60

I have connected the Arduino Nano with the Arduino Nano ENC28J60, and then I connect the Ethernet cable with the laptop and also the Arduino nano with my laptop to load the code and it works just fine....
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21 views

Setting up two arduinos connected to separate serial ports with wires in-between

I intend to have both an Arduino Nano and an Uno connected to a PC via the on-board USB ports, but have them inter-connected with wires from one's GPIO pins to the other's (one reads the status of the ...
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29 views

How can I use an MPU6050 with Arduino to measure linear speed?

I need to measure linear speed of a body which travels 1000 m forward and backward recursively. How can I use an MPU6050 with Arduino Nano to measure the linear speed of a moving object? (the object ...
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10 views

nRF24L01 and sim800L not working together

Good day, I would like to ask some help for my program code regarding the problem of nRF24L01 and sim800L. I have the code below #include <Sleep_n0m1.h> #include <Time.h> #include <...
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39 views

ATMega328 AU bootloader burning issue using Nano

We are trying to burn bootloader into ATMega328P-AU SMD. We have taken the reference of the link and did the same. We checked wire connections and all looks fine and we tried with two chip with two ...
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16 views

nRF24L01 multiple node ping pong example

I have used simple ping pong example found in maniacbug library. I am using Arduino nano + nRF24L01modules. With this I have one transmitter and two receiver. transmitter sends data on channel zero ...
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30 views

How to power an Arduino Nano without mini-B USB port?

I'm new to Arduino. I want to power my Arduino Nano with an external DC source, not with already attached mini USB port. I tried, but fail. Please help me to understand it. Thank you.
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34 views

Combining sketches

I have two codes for my to sensors and they work separately. However, I need to combine them in one program please can you help? The pulse code /* PulseSensor Starter Project and Signal Tester * ...
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20 views

Arduino Nano driver not installed

I just bought a new Arduino Nano but the problem here I have is that when I connect it to my computer the windows popup says driver not installed. What do I do?
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14 views

How can I power up my Arduino Nano for project of Rocket Data logging?

I am building a Model Rocket for which I need arduino nano to log data.But,I dont know how to power it up once it goes off the ground.Can anyone explain?
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59 views

code for OLED display suddenly crashes arduino Nano

Today i've been playing with my monochrome oled 128x64 adafruit screen. I've got it connected using SPI. Previously today i had no problems att all and i was able to print messages and variables on ...
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45 views

Double precision floating point operations using Arduino

Today we were programming something in university which dealt with really large numbers (even larger than unsigned long) and we had to create a code that broke the numbers into an array and performed ...
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41 views

LED turning on late

I am using an Arduino nano and an ESP8266. I have burnt an Arduino, but when I send a request to the Arduino LED, it takes some time to turn ON. Here is my code: #include <SoftwareSerial.h> ...
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29 views

Differing behaviour from Arduino Nano when plugged into laptop vs power source

Well here's a weird one. I'm monitoring a mic on an analog pin of an Arduino Nano and using the variation in voltage to control and LED. When plugged in to my Laptop (USB 3, 500ma available, the ...
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259 views

Emulating a generic Mifare USB peripheral device with RFID-RC522

Hardware Dev Board: Arduino Nano V3.0 Module: RFID-RC522 13.56 MHz Cable: USB A - USB Mini B Configuration Physical Code /* * -------------------------------------------------------------------...
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340 views

Rc-Switch Receiver Code not receiving anything

Hi so I'm Having Problems on my receiver code which uses the RC-switch.h library, The transmitter code is OK and it prints the corresponding values on the serial monitor but the receiver code doesn't ...
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0answers
36 views

Virtual Wire transmitter code

I'm Having problems on my virtual wire transmitter code. when i press one button the backward button is continuously being pressed even when im not pressing it. Here is the code // TRANSMITTER CODE #...
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116 views

Servo.h and ServoTimer2.h difference

So i'm trying to code a servo motor to turn left when a button is pressed and turn right if another button is pressed i already have a code for it on the servo.h library but it has a problem with the ...
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31 views

My arduino nano stops working after a short time with no obvious provocation

I have an arduino nano setup with a screen using the setup from the liquid crystals library "hello world" example, it works for a minute but then everything goes blank on the screen and the lights on ...
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48 views

Grounding analogue signals through ads1115

Quick question - I have some pretty expensive gas flow sensors outputting a 0-5V signal, which need at least 2.5 KOhms minimum load. Can I connect them to the Adafruit ADS1115 breakout (ADS1115 chip, ...
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46 views

Arduino button trigger coding

I am trying to write a simple coding to change the color of an RGB LED using a push button trigger. I just need the the pin output to change when the button is pressed. I would like to do this using ...
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0answers
280 views

Counting pulses of a signal between 2 pulses of another signal

I set an Arduino Nano to read the time between 2 pulses of a signal (kind of rotary encoder) to get and display an rpm value. I've done this using interrupts. Now I'd like to add a second (kind of) ...
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153 views

Waterproof ultrasonic sensor probe and arduino

I want to build myself a parking sensor using Arduino and I found on Ebay multiple solutions, but I was wondering, is it possible to make only the probe work with Arduino? Does anybody has an idea ...
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147 views

Is this Arduino NANO counterfeit?

Today i bought my second NANO(First one was made of Gravitech).I have some doubts that if it is a counterfeit product.I have noticed some points & they are as follows. 1)No "NANO" printed on the ...