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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nRF24L01 continuously reading closed pipe

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 ...
3
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0answers
56 views

Keypad - Speaker - Interference

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 ...
3
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161 views

nRF24L01+ problem with receiving response

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', '...
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594 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 ...
3
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0answers
926 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....
3
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1answer
654 views

Arduino Nano USB Serial Bypass

I have a Nano clone here, that sporadically fails to get detected by my banana pi. This is annoying, because it works for days and hours, but fails to work randomly. The Nano gets it's own power via ...
2
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1answer
104 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 ...
2
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0answers
41 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
71 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 ...
2
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0answers
22 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
52 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 ...
2
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0answers
54 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 ...
2
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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
216 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 ...
2
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0answers
42 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 (...
2
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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?
2
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216 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 ...
2
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0answers
55 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,...
2
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1answer
80 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
480 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
680 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) ...
2
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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 ...
2
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0answers
80 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-...
2
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0answers
275 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
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 ...
2
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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 ...
2
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0answers
630 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 ...
2
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0answers
148 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
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 ...
2
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0answers
71 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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0answers
5k 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 ...
2
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0answers
1k 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 ...
2
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0answers
9k 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 ...
2
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0answers
428 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 ...
2
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0answers
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 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 ...
2
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0answers
135 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: ...
2
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0answers
288 views

Arduino nano (clone) with ethernet shield only works when I open up serial monitor

#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"; ...
2
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0answers
142 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
2
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0answers
858 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 =...
2
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0answers
85 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 ...
2
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0answers
151 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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0answers
28 views

RTClib.h problem

In Library Manager RTClib and DS3231 work somehow with older versions. RTC time can picked only once and then it give bullshit. Using newest versions screen is empty. In picture first time is right, ...
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0answers
45 views

Model locomotive circuit review

I am building a model scale locomotive and therefore use Arduino for the DC motor, smoke generator, sound and lights. Can you help me with reviewing the circuit? Power comes from rechargeable ...
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0answers
27 views

SPI problem with Bitcraze PMW3901 sensors and Arduino NANO

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 ...
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0answers
40 views

No communication between two stations that include Arduino Nano and nRF24L01

I'm struggling to establish a link between two Arduino Nano using nRF24L01 (the module that contains PA and LNA). I assume I made a coding mistake (May be in the setup method?), and I need help in ...
1
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0answers
26 views

Is it possible to control android accessibility with arduino nano?

I am trying to build an ACC device. when a button is pressed the changes should be made via android accessibility mode. I am using arduino nano, and I don't know how to control android using arduino.
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0answers
73 views

NRF24L01 receiver flooded with data packets

Following this tutorial I attempted making an NRF transmitter and receiver using an Arduino Nano. On the transmitter side I used the following code: // SimpleTx - the master or the transmitter #...
1
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1answer
45 views

Arduino Nano not recognized by Mabook Pro M1

I am new to Arduino and I have ran into an issue. When I first tried to plug the arduino nano (after market, from ebay) into my computer (Macbook pro M1), nothing happened. Then I downloaded the ...
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2answers
46 views

How to hook up a HC-06 to Arduino Nano

So I have an arduino nano hooked up to hc-06 however every diagram of the hookup wires shows some kind of resistors (1K and 2K, rather high resistances to ignore), and I completely overlooked them. I ...

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