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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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2
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1answer
493 views

I2C communication between Arduino Due and Nano

I'm trying to communicate between two Arduino Due and Nano. Nano as Master and Due as a slave. As given in the library description Wire Lib When the master request for data from the slave, first it ...
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1answer
9k views

Alternative for IRF520 mosfet in Arduino shutdown schema

I’am using IRF520 mosfet according to this schema to shut down Arduino by low level on output to 10K ohms resistor Schema of my device is The issue is that IRF520 took too much place Is it possible ...
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3answers
2k views

Nano-like Board - Programmer Not Responding [duplicate]

I am trying to upload a basic sketch to my unofficial Nano-like board and keep getting this error. I understand that it is a generic connection error between the Arduino and my PC, but can't figure ...
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2answers
215 views

Controlling a LED array from Arduino NANO

I have a project Im currently busy with that I need a lot of help with. What I want to do i create a flat 8x12 grid of LEDs and be able to control each individual LED independently from the others. I ...
2
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1answer
8k views

74HC595 with 4 digit 7 segment display. Any way to get rid of leading zeros?

I am working on an Arduino based temperature reader using a DS18B20 temperature IC. The display is a 4 digit 7 segment LED common anode display driven by a single 74HC595 shift register. Currently, it ...
2
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1answer
1k views

Arduino Nano memory issue. SD card and LCD screen together

When i am uploading my code to arduino nano, i am getting message about high dynamic memory usage (87%): Sketch uses 17,628 bytes (57%) of program storage space. Maximum is 30,720 bytes. Global ...
2
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3answers
667 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 ...
2
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1answer
2k 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 ...
2
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1answer
609 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 ...
2
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2answers
112 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 ...
2
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1answer
483 views

Risks of ftdi_eeprom? - TX always high after flashing

I flashed an Arduino Nano compatible with ftdi_eeprom and the following config: vendor_id=0x0403 # Vendor ID product_id=0x6001 # Product ID max_power=0 # Max. power consumption: value * 2 ...
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1answer
6k views

Arduino Nano ESP8266 software serial problems

I have a problem with my Arduino Nano ATmega328 and my ESP8266 01 module. I have connected the ESP8266 on my Arduino board without FTDI. I have made the following connection: I an using a 5V ...
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4answers
377 views

What type of hardware could make a ball tilt or roll? [closed]

I wanted to know what type of component or module I could use to make a hollow ball move. I have these hollow plastic balls (think empty easter eggs) that I was going to put a nano in and a sound ...
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1answer
2k views

How to interface arduino nano with sim900A?

I have arduino nano and sim900a modem. Rx(pin30) and Tx(pin31) pins of arduino shows 3.8VDC respectively and Rx and Tx of SIM900a shows 3.6VDC and 2.8VDC respectively. Could i connect the SIM900a ...
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1answer
634 views

Arduino Nano Motor

If I had four of these motors and attached them to the Arduino Nano on four separate digital pins or analog pins without transistors and a 9v power supply attached to the regular power supply input ...
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3answers
3k views

Arduino program wont work properly for some reason

I have a arduino program that I wrote with my teammembers. We are working on a project and try to move a RC car. Here is our code. int forward =12 ; //assign to correlating pin attached to TP06 int ...
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1answer
13k views

How do i wire a switch to control Leds on a arduino nano

I am wiring some LED's with buttons to trigger them but i don't know if i have the wiring right? Code /* switch * * Each time the input pin goes from LOW to HIGH (e.g. because of a push-...
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2answers
1k views

Car dome light fading with arduino nano

So I'm working on my car and now I've got my sights on the electrical system. I've installed a keyless entry system and a pulse timer for the dome light. Now, I'd like to give the dome light the fade ...
2
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1answer
1k views

Sending data from a GUI to an Arduino nano via USB

Can somebody point me in the right direction for information on sending data to an Arduino nano? My project is to send data that is updated from a GUI (presently written in Python) to an Arduino nano ...
2
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1answer
82 views

DFPlayer Mini does not boot reliably after being powered down

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 ...
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0answers
40 views

Low Power, SD Card module and SCK

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 ...
2
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0answers
38 views

Arduino MPU error

This is my code - // Basic demo for accelerometer readings from Adafruit MPU6050 #include <Adafruit_MPU6050.h> #include <Adafruit_Sensor.h> #include <Wire.h> Adafruit_MPU6050 mpu; ...
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40 views

Motor response is lagging

I've got a DC motor connected to an Arduino Nano, L298N H-Bridge and a 12v Power supply. I'm trying to make it respond to incoming MIDI data a bit quicker. Right now, it seems awfully slow, and lags ...
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0answers
69 views

Arduino freezes if I do NOT do Serial.println() at least TWICE

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 ...
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0answers
34 views

Nano 33 BLE Sense LED flashing 3/5 slow/fast after upload

I'd successfully got my Nano 33 BLE Sense to read accelerometer data and subject to there being a difference between current and last readings, to send this via the EasyTransfer library to an XBee ...
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0answers
20 views

Arduino NRF24LO1

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> #...
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0answers
50 views

nRF24L01 +pa +lna link does not communicate

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 ...
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0answers
51 views

TFT Screen & ATMEGA168

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 ...
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0answers
27 views

When is following code is dumped into Arduino NANO the output is not as expected after few trials

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 ...
2
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1answer
191 views

Trouble obtaining values from Nextion screen to Arduino

Currently I have a setup running an Arduino BME 280 sensor and a 4.3" Nextion screen. What my program does is sent all the calculated values from the BME to numbers and progress bars in my ...
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0answers
41 views

Weather station project Transmitter not communicating with Receiver

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 (...
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3answers
132 views

Problems uploading with a new Nano

My first post - I am a relative newbie. I want to make a smartcontroller for my boat - I have built the electronics and written and tested a sketch for the Nano, all working totally fine. I then ...
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0answers
24 views

How to connect two arduinos with smartphone wirelessly

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?
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0answers
212 views

Arduino Nano not recognized on Windows 10

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 ...
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0answers
52 views

Fail to upload sketch when Arduino Nano is connected to breakout board

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,...
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1answer
78 views

Latency in Websocket

I am using Websocket, for a communication from my mobile phone to a NodeMCU, and transmitting 4 channel, data, through 4 different Websocket Ports. the NodeMCU control code is here: // ============ By ...
2
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2answers
461 views

Wireless Bluetooth USB HUB using Arduino nano

I have the following problem/idea: I have a electronics workbench and a separate PC desk. Now I have a USB HUB on the workbench, but it doesn't properly work, because the USB-cable to the pc is too ...
2
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0answers
647 views

Arduino Bluetooth upload problem HC-05 v4.0

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) ...
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0answers
92 views

ARDUINO PROGRAM

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 ...
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0answers
79 views

Arduino UNO R3 clone acting as Arduino Nano

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-...
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0answers
272 views

RS485 Serial Communication not working with Arduino

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 ...
2
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0answers
332 views

Arduino based hour counter [duplicate]

I would like to make a hour counter for a particular machine.I have a problem in coding.arduino internal clock can work only till 49 days.my hour counter should calculate 150+ hours.I thought of using ...
2
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0answers
102 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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0answers
95 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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0answers
628 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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0answers
147 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 ...
2
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0answers
1k 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 ...
2
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0answers
165 views

Hacking a Chinese Audio Selector Board: IRLib2 with Low Power Sleep Issue [closed]

I have an issue getting an arduino based hacked-board to sleep whilst performing ir remote commands properly. What am i hacking? Exactly this: tl;dr it's a 4 in 1 out audio selector with motorised ...
2
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0answers
276 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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0answers
70 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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