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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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I am testing communication between two nRF24L01 modules. The receiver is getting the transmitted message but is also continuously reading (null) data from a closed pipe? I am using the RF24 by TMRh20 ...
PyNZ's user avatar
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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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Python/Arduino Beginner here... I have a DFplayer I am trying to hook to my Arduino and I want to hook it up through the regular pins instead of the RX and TX pins, but I've not been able to find ...
prestonferry's user avatar
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I am trying to build a system, that plays specific audios (.wav files) from a SD-Card, according to the key combination that has been pressed. I am using: 4x4 Membrane 4 Ohm Speaker MicroSD Card ...
D_0's user avatar
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I'm sending currently data from a Raspberry to an Arduino, but I have a problem with receiving response from the Arduino back to the Raspberry: Sent the message: ['H', 'i', '.', '.', 'A', 'r', 'd', '...
NezumiRyu's user avatar
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I upload code into arduino nano using a self-made PCB with bluetooth using this method. I was initially using Arduino Nano (chinese Clone, the one with CH340G) and Bluetooth module HC-05 (version 3.0) ...
Kunal Kataria's user avatar
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671 views

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 ...
louigi600's user avatar
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2 votes
2 answers
146 views

I am working on communication between a Arduino and ATtiny13, and I need to get this bare-bone communication to work. There is a Arduino Nano powered by USB cable from the PC, and there is ATtiny13 ...
Milos's user avatar
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I'm using the OneWire library to try and read temperatures from a MAX31888 sensor using this Arduino program: #include <SoftwareSerial.h> #include <OneWire.h> #define RX PB4 #define TX ...
Boyfinn's user avatar
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2 votes
0 answers
649 views

I have built a speedometer, based on this youtube video: https://www.youtube.com/watch?v=gKuJxjxNP-k&t=34s The speedometer is for a car, so it needs to be in real-time and accurate, with the ...
cool bean's user avatar
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2 votes
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334 views

I am trying to send RF signal from Digispark Attiny 85 (this one) and receive the signal with Arduino NANO V3.0 ATmega328 (this one). Transmitter and receiver are STX882 and SRX882 (these). Library ...
Le_Peck's user avatar
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I am at my wits end and hope somebody here can provide some much-needed guidance. My platform is an Asus ROG AMD laptop running Windows 11. I recently decided to try working with Arduinos and ...
BobW53's user avatar
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2 votes
0 answers
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I'm using a MacBook Pro 2013 Late with OpenCore Patcher. Currently Ventura 13.3.1 is installed. Before this version was installed, I had no problem using arduino on my MacOS computer. But right now, ...
eaidy's user avatar
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2 votes
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my results are here. 0 press--"a" 1st press--"b" 2nd press--"c" 3rd press-- still showing "c" When button pressed 3rd time, It must be repeated to show "a&...
hfsrg's user avatar
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I am going to use 4x TPIC6B595 and 4x 7 segment display with common anode. Below You Can find vendor site of this display. https://sklep.avt.pl/wyswietlacz-led-2-30-57mm-zielony-wa.html Here is my ...
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I've been playing around with several Arduino ethernet modules based on the ENC28J60 and the W5500 chipset. All modules are advertised as 10/100M, but in reality only work when the port of a switch is ...
Joe's user avatar
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I'm writing code so that, every time a hall monitor senses, my code additively measures 5 liters of volume as it prints each detection. Then, this data is sent via Bluetooth to a phone. (This is for a ...
Anne Murray's user avatar
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I am currently trying to connect four Bitcraze PMW3901 sensors to an Arduino NANO, but I seem to have issues with the SPI. When I connect two sensors using the code below, it works perfectly: I am ...
wolly94's user avatar
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For a low power project, I need to power up the DFPlayer Mini module, let it say something, and power it down again using an Arduino Nano (w/o power regulator and LEDs). In the idle time, the Arduino ...
Kilroy's user avatar
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2 votes
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338 views

in order to minimise power consumption in a project using the Arduino Nano, I need to set pin D13 to HIGH after using it as SCK for transferring data to an SD card module (I use the SD.h module. I ...
Kilroy's user avatar
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266 views

I'm looking to calibrate a load cell and for some reason, when I open both the serial monitor and plotter, they both come up blank. My plotter is set to the corresponding 9600 baud, however, this ...
Yemi Davis's user avatar
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Hii I have a big project, and found this when I tried to remove all the test code. To summarize: I have a variable that I use as a buffer for string operations called char internalbuffer[32] declared ...
Qubo's user avatar
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2 votes
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41 views

I have a problem with transmiter (Arduino uno) and receiver (Arduino nao). When I am trsmiting that I receive that: An this is my code for receiver #include <SPI.h> #include <nRF24L01.h> #...
jaqb's user avatar
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2 votes
0 answers
184 views

I’m trying to create a link between two nRF24L01 units. Each nRF24L01+-based module (purchased) is connected to Arduino Nano on a custom-designed PCB. The printed wiring is per the hardware ...
user1511360's user avatar
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2 votes
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255 views

I have a Arduinio nano and a ATMEGA168. I'm using the ST7789 library. The sample code which comes with the library runs perfectly and runs the display when using the Nano, but the same code does ...
Rick Dearman's user avatar
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I'm a beginner of Arduino programming, when I dumped the following code into Arduino NANO board, at the first the output is as expected. But After few trials the 16*2 LCD display is getting off and ...
Swathi's user avatar
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2 votes
0 answers
72 views

I am building a weather station that contains a transmitter and a receiver and the data at the receiver's serial monitor shows either ovf, nan, 0.00 or some crazy number for the outside data (...
Bryan F's user avatar
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2 votes
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72 views

I'm working on a project that have two separate setups for Arduino, each Arduino read sensors and send data to smartphone. how to connect two Arduino then send all data to smartphone over Bluetooth?
Danish's user avatar
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608 views

For some weeks my latest dozen of Nano's isn't recognized any more by Win 10 computer: After two days of experiments I have suspicions: Is there any change in Win10 since all Arduinos now are only ...
Dieter's user avatar
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2 votes
0 answers
124 views

When I upload a sketch from Arduino IDE to my Arduino Nano (not yet connected to breakout board) via USB, it works. I can then plug the Nano back to the breakout board and let it do its thing. However,...
Mushroom1's user avatar
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0 answers
420 views

I am trying to use pulse sensor with Arduino Nano 33 BLE sense, but when I verify it, it shows Error compiling for board Arduino Nano 33 BLE. The code is from the pulse sensor website. The code works ...
Syfian Bukhari's user avatar
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2k views

I have written a class for generating a 25khz pwm signal for the Arduino Nano. This works great (pin 9 and 10 only) on the Nano. I want to switch to Arduino Every; this code does no longer work (the ...
HixField's user avatar
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I have a project that consists in measuring the mass of an object with a strain gauge HX711. so I found an interesting Arduino program and the editing that goes with it. but I have a problem, I ...
Marie lesquibille's user avatar
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2 votes
0 answers
98 views

I just got a bunch of Arduino Uno R3 (ATmega328P + CH340).In arduino IDE when i'm selecting board as Arduino UNO then i'am getting this error avrdude: Version 6.3-20171130 Copyright (c) 2000-...
Potato Gamer's user avatar
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2 votes
0 answers
377 views

I am trying to control 2 devices with my arduino using RS485 communication. Basically switch on device 1 for 5 seconds when I send 'g' to the master. And switch on device 2 for e3 seconds when I send ...
Mars Rover's user avatar
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2 votes
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143 views

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 ...
Răducu's Computer's user avatar
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2 votes
0 answers
140 views

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 ...
auphynne's user avatar
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2 votes
0 answers
747 views

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 ...
Benjamin Broadbent's user avatar
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2 votes
0 answers
169 views

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 ...
imacbest's user avatar
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2 votes
0 answers
2k views

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 ...
CaglarCaliskan's user avatar
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2 votes
0 answers
302 views

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 ff ...
noam aghai's user avatar
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2 votes
0 answers
87 views

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/...
Sandeep Thomas's user avatar
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2 votes
0 answers
6k views

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 ...
Username's user avatar
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2 votes
0 answers
2k views

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 ...
niraami's user avatar
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2 votes
0 answers
9k views

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 ...
Photon's user avatar
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2 votes
0 answers
470 views

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 ...
Calum Nicoll's user avatar
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2 votes
0 answers
2k views

It all started when I tried connecting an hm10-nano to a relay board 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 ...
marciokoko's user avatar
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2 votes
0 answers
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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: ...
Gabriele Giordano's user avatar
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2 votes
0 answers
345 views

#include <EtherCard.h> static byte mymac[] = { 0x7A,0x69,0x69,0x2D,0x30,0x31 }; byte Ethernet::buffer[500]; static uint32_t timer; const char website[] PROGMEM = "x0201g2.cloudapp.net"; ...
40pro's user avatar
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2 votes
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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
Random's user avatar
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