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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23 views

Arduino code uploads fine, however avrdude output is not able to read / verify memory

Purchased some clone Arduino nanos a while ago and finally got to working with them. Of the 3 i worked with, 2 of them upload and verify fine. The third is able to upload (code functions properly), ...
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19 views

I can't Upload my code on Arduino ATmega328p(the chip has' atmel 'wrtten on it) [duplicate]

I can't upload my code from Arduino Nano from Arduino IDE. I have used the Arduino with a Shield may times before... I uploaded one code.. but after some Seconds the code was not uploading This is ...
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25 views

to define a object in your own arduino library which is already defined in inbuilt library

I am creating my own GPS library using NeoGPS library. So for fixing the GPS NeoGPS library defines gps_fix as: gps_fix fix; Now i want to define the same thing in my library. How to define the ...
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65 views

Program Upload Loading problem [duplicate]

Please help me about this program uploading problem. Arduino: 1.6.13 (Windows 10), Board: "Arduino Nano, ATmega328P" Sketch uses 930 bytes (3%) of program storage space. Maximum is 30,720 bytes. ...
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2answers
457 views

Nano can't get reply from ENC28J60 Ethernet Shield

My Arduino Nano can't get a reply from my new ENC28J60 Ethernet Shield - I can't get any library examples to work. Using the UIPEthernet lib, and running the EchoServer example with logging turned up, ...
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133 views

To update GPS after every 30seconds using NeoGPS and NeoSWSerial Libray

I am using Adafruit Ulitimate Breakout GPS module and NeoGPS and NeoSWSerial Library. Now I want the GPS to update in 30seconds once (1time in 30seconds).After it is updated I want to check the ...
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1answer
36 views

DC Motor Control L298N

I am trying to control the speed of two motors using L298N. I use "Arduino Nano ATmega 168". I change the analogWrite between 0-255 but I cannot see any difference. When I assign it to something like ...
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38 views

Arduino Nano/Uno and js sketch compiling/uploading from browser

I need to compile generated source code in js runtime then upload it to my device. Compiling: I have found arduino-cli Uploading: There is only avrgirl but it doesn't work in browser. What should ...
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178 views

Arduino Nano /Uno USB is not getting recognized

I have multiple Unos and Nano and recently due to some bad configuration the USBs are not getting recognised on my Mac Air Laptop. These were working models for almost 1-2 years. I used it to control ...
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61 views

Problem burning bootloader to ATmega chip using nano/uno

I designed a custom PCB that has the chip, an oscillatorm, decoupling capacitors, and all other connections for the ATmega along with the rest of my circuit. I followed all steps in the tutorial for ...
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2answers
504 views

detecting presence inside - PIR or ultrasound?

(I am professionally a software guy working in the GCC compiler with MELT, so I am fluent in software, but much less in hardware - I did use a solder for a 74LS00 nand gate based stuff in the 1990s. ...
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5k views

Can I use Arduino Nano V3 to program another arduino (Pro Mini)?

I was planning to buy serial to USB converter (FT232RL) to be able to program Arduino Pro Mini. But the shop nearby offers Arduino Nano V3 at almost the same price. Could I use this Arduino instead (...
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114 views

Powering ESP8266 module from arduino nano

I'm just starting up with arduino and i have few simple questions. Why shouldn't i power ESP8266 WiFi module directly from arduino nano 3.3V rail? There are bunch of tutorials explicitly avoiding ...
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24 views

Upload sketch in multiple arduinos

How do I upload sketches in multiple arduinos from one supervisor Arduino using UART , cd4051 for Rx and TX separately and reset pin low
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272 views

Arduino nano with 128x64px OLED freezing

I have an arduino nano, MCP3424 i2C ADC and a 128x64px i2C OLED display. The function is quite basic; the arduino receives information from the ADC and prints it to the screen as described in the code ...
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2answers
95 views

need to compare if a byte is less than 80 hex

I am using an infrared sensor called OTI301. In its data sheet it says that in order to obtain object temperature and ambient temperature values I need to extract the binary information from the ...
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1answer
769 views

What pins can be used for chip select (CS, CC) on the Arduino nano every?

I’ve checked the nano’s tech specs but I can’t seem to find any information regarding it. I’ve tried setting it to pin 26 (digital output)
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26 views

To stop the geared DC motor based on the number of rotation

I am doing a small project in which I need to stop rotating the dc geared motor based on its number of rotation (in my case I need only 2 rotation), after two rotation it should stop rotating. I am ...
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1answer
50 views

How fast should I be able to write to AT45DB321D flash memory?

I checked the AT45DB321D datasheet and it says it operates at either 66 MHz oder 33 MHz. Both of these speeds are higher than what an Arduino Nano supports (my google fu fails me here, but according ...
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22 views

Problem with connecting Infineon Pressure Sensor Shield2Go to Arduino Nano

How do I connect DPS310 pressure sensor Shield2Go with Arduino Nano?
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3answers
26 views

Help me get my robotic car to work?

So I recently followed a tutorial on youtube and I've assembled the car and connected all the wires. What I've done: Car Now in the video, when the guy connects all the wires, the wheels constantly ...
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1answer
1k views

Problem with Pulse Sensor signal

I'm making alarm with input from pulse sensor. When it detect high heart rate then it send a text message. Everything works fine when i am using potentiometer (as input) for simulating triggering SMS. ...
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70 views

ethernet module works with uno, but not with nano

I use etherCard Library with ENC28J60-EDC8J60 ethernet module When plugging the "backSoon" example into an arduino UNO, everything works fine, but when i plug it into a nano, as seen in some tutorial ...
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1answer
92 views

SD writing problem

I have an Arduino code for logging sensor data, time and date. Then I store all the data in the SD card and then I will send the sensor value to another node by using Lora. but I can't write the data ...
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1answer
181 views

I2C code working on Mega 2560 but not on Uno and nano

I have recently purchased this Heart rate sensor and was trying to make it work. I used this MAX30100 library I found on Github. For some reason when I use any of the given examples, they seem to work ...
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1answer
46 views

can I program a nano over SPI with another nano?

I'm fairly new to arduino, but I want to program a nano over SPI to skip the bootloader. I know I can program the nano with an uno as a programmer to do this, but I don't have an uno, but I do have a ...
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24 views

I am not receiveing what i am sending using NRF24L01

I am trying to transmit and receive the value using NRF24L01. I am sending 5 but receiving 0. The code i am using at the receiver's end is #include <SPI.h> #include <nRF24L01.h> #include &...
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27 views

How to swap ground and power for multimeter

I'm trying to create a multimeter that measures resistance and capacitance for a school project and the code must be under 30 lines. I have made both a resistance meter and a capacitance meter but the ...
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1answer
3k views

difference between the nano and the nano every

So I wondered what the difference between the nano and the nano every is and why the nano every is so much cheaper than the nano. I'm new to the microcontroller business and I would like to know ...
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1answer
39 views

Taking data from main 120V 50/60Hz power

How can I take data from my house main power and reconstruct it signal? I used an transformer and an inverter amplifier to low voltage to 5 volts and read it with A0 analog pin, but I got a very ...
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1answer
90 views

I2C communication problem with two slaves (atlas scientific) and one Nano (official)

I'm working on a project using an arduino Nano (official) and two peripherals from Atlas Scientific (pH and DO) communicating via i2c. Everthing works fine when i use a usb alimentation connected to ...
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80 views

Nothing prints in the serial monitor in Arduino - Ide

Sir, I used Arduino-Uno as programmer and Arduino-Mega 2560 as target and uploaded the below code, I was not able to view the Serial. println lines in the serial monitor, Can you please help. Thanks. ...
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25 views

Cannot connect with online arduino editor but I can with Arduino IDE to an Arduino Nano

As the title says I have a Nano with CH340G and 168 that connects properly to Arduino IDE but not to Arduino online editor, it does not detect the board "Error uploading, check if the board is ...
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2answers
131 views

Powering Peltier using solar panels

I am a beginner to electronics and trying to make a portable air conditioner using a Peltier cooling pad (12V). I am planning on using a solar panel to power the Peltier and looking forward to your ...
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32 views

433 MHz Radio Transmitter and Reciever Range Problems [duplicate]

I recently started developing an interest in tinkering with my Arduino. I bought 433 MHz Transmitters and Recievers (model number: XY-MK-5V). But when I try using them I have pratically no range: ...
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178 views

Arduino-Controlled LED Matrix issues

I am making a 20 x 15 LED matrix, and am having some super annoying problems. I was hoping you all could help me find some answers. It is very important to note that I am following BitLuni's video ...
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50 views

Issue with TTP223 capacitive buttons

I got some TTP223 to be able to trigger some inputs from an Arduino Nano thru a plastic cover without drilling anything (and hiding the buttons was cool so no one knows that there is functionality ...
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2answers
33 views

Push Button to Drive Power to Servo

I am currently doing a project for a class which uses a few other components such as an LCD, a servo, and such. I want to use a button which acts as a circuit breaker on the Vin of the servo in which ...
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50 views

Byte not written to the memory

In the following code I'm computing crc and setting it as last (11th) byte in the array. The problem is it's sent on I2C just when I print it on the serial terminal. static constexpr uint8_t ...
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198 views

Sending more than BUFFER_LENGTH(32) bytes in slave answer I2C

I need to send 259 bytes as answer to I2C master read request. AFAIK there is a buffer limit of 32 bytes in Wire.h and in HW (Arduino Nano). Is there a way sending 259 byte answer, or I have to choose ...
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2answers
56 views

Audio stops playing after rtc is connected

I am trying to play a song using arduino while at the same time display time using a rtc board using the tmrpcm library. However, if the rtc board is connected no sound is played. I do understand ...
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1answer
256 views

real-time reading of a quadrature encoder at full resolution with only one interrupt on ATmega328

I want to read a quadrature rotary encoders at full resolution with only one interrupt on Arduino Nano (ATmega328). So I found out that we can use XOR to reach a full resolution: Where pin 3 ...
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41 views

Communication between arduino nano and MCP3424 over I2c pt. 2

I'm am completing a project of mine that uses an MCP3424 i2c 18bit ADC and an arduino nano to measure temperature with an NTC thermistor but am having trouble with the arduino wire library. This is my ...
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1answer
73 views

How to modify this code to simulate a binary encoder?

I have come across the following SPI slave code at this site: #include <SPI.h> char buf [100]; volatile byte pos; volatile bool process_it; void setup (void) { Serial.begin (115200); // ...
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1answer
38 views

Control 4 digital outputs with one switch

I want to control 4 digital outputs (d0, d1, d2, d3) with one switch. When the Arduino starts, they should all be in state LOW. Now, after pressing the button once, d0 should get HIGH. Another push ...
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1answer
35 views

Circuit with a tip120 works with a Led but, don't with a vibrator motor

I have 2 Arduino Nano's. One with RF transmitter and the other with an RF receiver of 433 MHz and both have two 3v vibration motors. I want one Arduino to send a string to the other Arduino to let him ...
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68 views

Why did it blow up?

I recently designed a PCB to hold an Arduino Nano, IMU and other components. I'm using this platform as the fly computer of a homemade drone. This is one of my first PCB designs and I'm not an expert, ...
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3answers
520 views

How to generate .a and .so files to add in arduino project

I know to make a library on arduino ide with source codes, but I cant send my source code to another users who want to use my lib. So I need to make a library with precompiled=true info at library....
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34 views

I get the following error when I typed the below code. “ Stray'\302” in the programme .I tried to sort it but failed

#include <Keypad.h> #include<LiquidCrystal.h> #include<EEPROM.h> LiquidCrystal liquid_crystal_display(9,8,7,6,5,4,); char password[4]; char initial_password[4],new_password[4]; ...
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1answer
190 views

Connecting Peltier module to Arduino Nano

I am a beginner to Arduino programming and started working on my first Arduino project recently to power a Peltier cooling pad. Below is the code I used and in the circuit, I connected the positive (...

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