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.

Filter by
Sorted by
Tagged with
0
votes
0answers
38 views

Arduino RS485 communication protocol - minimising overheads and best practice

I'm building a single master multiple slave RS485 network for remote sensors on test equipment. I have the hardware built and working, and I can do a Serial.print on the master and have the slaves ...
0
votes
1answer
108 views

HC-12 modules stopped receiving, cannot understand why

I've created a simple transmitter with an HC-12 and an Arduino Nano (clone), where I send the values of DHT11 and LM35 sensors to a receiver unit made only of a Wemos D1 and another HC-12. Setup is ...
-2
votes
1answer
60 views

Will a pull up resistor help the UART transmission accuracy on Arduino nano?

On A post from Arduino forum , someone mentioned that a pull up resistor over RX/TX pin could help the reliably of UART communication. Is that really the case for nano and uno board?
0
votes
0answers
48 views

What killed my Arduino nano?

Yesterday evening everything worked well. Today morning I am trying to upload sketch to the Arduino (nano china, CH340) and get the following: Writing | avrdude: stk500_paged_write(): (a) protocol ...
0
votes
1answer
64 views

Does using multiple HX711 amplifiers change the supply voltage of an Arduino?

I’m creating essentially a load cell using an Arduino Nano and an HX711 amplifier. However, I want to have two HX711 amplifiers running off the same Arduino. Will that change the supply voltage since ...
1
vote
1answer
6k 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 ...
3
votes
2answers
18k views

How can I power an Arduino Nano with a LiPo battery, preferably 3.7v

I am a newbie to Arduino, so please bear with me. I am trying to figure out how to power an Arduino Nano with a LiPo battery. I want to use a 3.7v if possible, as my project needs to be lightweight. ...
1
vote
1answer
48 views

Sound sensor only detect peaks

I'm using this SparkFun Sound Sensor in my project for a simple ambient sound meter. I'm just trying to monitor the raw analog envelope output for the moment. My problem is that the output only ...
0
votes
1answer
180 views

How to add calibration to a humidity contoller using UNO and DHT22 sensor?

I am using a setup that helps controlling humidity in an enclosure used to store a humidity sensitive product. My original posting is here. I'm using a NANO and a DHT22 temperature/humidity sensor ...
0
votes
0answers
35 views

Dobly prologic with esp8266?

So i have this old 5.1 prologic thing sony hcd-451. is it possible to encode an audio stream to prologic send it to the esp and digital out it to my device? Grabbing the audio stream encoding and ...
0
votes
0answers
32 views

Arduino AT Cmd Not Working

We are Using I-CUBE-LRWA Lora Module AT Cmd with Arduino ProMini Set of commands set with DockLight working Perfectly but with Arduino, we are getting some coded response and well every time RXTimeout ...
1
vote
1answer
214 views

Upload already compiled code on Linux CLI without arduino-cli

I have a sketch for an Arduino Nano. I'm compiling it on my build server and get these 3 files: project.bin.elf project.bin.hex project.bin.with_bootloader.hex Now I need to be able to upload/flash ...
1
vote
1answer
78 views

Reduce Sketch Size Help!

I dont know what to do? Sketch uses 3712 bytes (12%) of program storage space. Maximum is 30720 bytes. Global variables use 210 bytes (10%) of dynamic memory, leaving 1838 bytes for local variables. ...
0
votes
1answer
192 views

Is there an Adafruit function to invert the colors of my screen for Arduino language?

I am trying to invert the color of my OLED display screen once a button is pushed. I have the button situation figured out but I can not find a function that inverts the color. I am using these two ...
1
vote
1answer
527 views

Arduino Nano and ESP8266

I am trying to use Arduino Nano with ESP8266 (01). I tried to follow a lot of online tutorial with no result. In particular this one http://www.martyncurrey.com/arduino-to-esp8266-serial-commincation/...
0
votes
1answer
53 views

PIR Sensor Gives False High in 55 Minutes (Can't find a way to solve)

I have built a system to identify motions and fire alerts. System can send a SMS in case if it's identify such alerts. System consist of two parts, Part 1: Armed and Disarmed using a PIN (Using ...
-1
votes
1answer
75 views

Measure 64 different Thermocouples fast

I used the MAX31850K for testing. Its too slow (100ms resulting in around 7 s to wait till i know the temperature of all). I want to be able to measure them all within 1 sec. Should I try build my ...
0
votes
1answer
28 views

Does the Arduino deteriorate after shorting the voltage regulator?

I mistakenly connected a 7.4V battery backwards to an Arduino Nano via the Vin pin. The Arduino still works (I can upload code) connecting it to the PC using the USB cable. Here's my question: will ...
18
votes
4answers
79k views

What is the maximum power consumption of the Arduino Nano 3.0?

What is the maximum power consumption (in mW) of the Arduino Nano 3.0, when it is running in its default state (at 16MHz, no LEDs removed) and powered by an external regulated 5V supply so it bypasses ...
-1
votes
1answer
100 views

USB Power switch

Can an Arduino power a USB device like a tablet from one of it's pins or do I need a relay? I want to essentially have the Arduino turn on and off a USB charger. Thanks
0
votes
1answer
4k views

MIFARE RC522 I2C Library

I was looking at this link on RFID I2C interface. I added the library to arduino, but in main.cpp, I see an error: In function 'void setup()': sketch_mar27a:16: error: no matching function for call ...
1
vote
1answer
539 views

How I can connect module GSM SIM800L?

I bought a GSM module, and I want to connect it with Arduino but I have a problem. I linked GSM SIM800L with regular LM2596 12 V 2 VA I changed tension to 5 V, So far the GSM is ...
0
votes
0answers
35 views

Arduino Nano as ISP programmer and Serial monitor

Is it possible to use an Arduino Nano or comparable as a programmer and simultaneously use it as a serial adapter? Meaning that I would be able to flash another µC (e.g. an ATmega644PA) using avrdude ...
-1
votes
2answers
781 views

I2C conflict with 2 Arduinos

I am having some trouble connecting my 2 Arduino Nanos with I2C. I have this configuration: SLAVE RECEIVER Nano with DS1037 and LCD 16x02 on I2C. MASTER SENDER Nano. After some time the Slave ...
0
votes
0answers
18 views

Arduino Nano - which battery [duplicate]

I am preparing Human IR detector based on Arduino Nano, where will be "SHD4216 Piezo Electronic Buzzer" for making as much noise as possible activated by "AM312 IR sensor". How to choose best battery ...
-1
votes
1answer
803 views

Problem with SPI comms using NodeMCU v 3, Nano and SD

Recently I bought a NodeMCU 8266 v 3 (Lolin) and it works fine. I set up a Catalex SD card module (with a built-in 5-3.3V regulator) and all was good. Then I set the Lolin with an Arduino Uno and or a ...
1
vote
0answers
176 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) ...
0
votes
1answer
74 views

Arduino not writing full NMEA sentence to SD-card file

I'm currently building a small GPS-box that's supposed to track my location and write the full NMEA sentence to an sd card. (I want to pars it afterwards at my pc) I'm using the Arduino Nano and the ...
0
votes
3answers
80 views

How long will program stay in memory without power?

Let's say we program an arduino uno or nano and then stop using it for a while. How long can we expect the program to last on the arduino?
0
votes
0answers
65 views

WS2811 strip not working on NodeMCU, works fine on Nano

Sorry if this is something simple, but im scratching my head over this for a while and there are a few things that have me super confused. I have two WS2811 strips lighting up my outdoor stairs Both ...
0
votes
1answer
485 views

Connecting an Arduino Nano to a Raspberry Pi Zero

I'm working with an Arduino Nano Every, and I'm trying to connect it to the Raspberry Pi Zero for data collection from I2C sensors and writing/program code from the Pi to the Arduino. Typically, I ...
0
votes
2answers
74 views

Bootloader difference between Atmel328p(through hole) and Atmel328p au(smd)

It’s been bugging me lot that Can’t we burn the same bootloader for both 328p and 328p au? I got confused when I see this linksmd 328p au bootloader burn. Will there be any impact on performance or ...
0
votes
0answers
9 views

Need help deciding Arduino board and ZigBee module for a wireless sensor network [duplicate]

I need to create a ZigBee network in a star topology with Arduino boards collecting the sensor's data at the router nodes of Zigbee. The sensors which I use are a temperature+humidity sensor and IMU. ...
0
votes
1answer
63 views

CH340 chip getting fried after connecting Arduino to a powerful 12V souce

I'm using a 120 W DC power supply connected in parallel with ESC and Arduino nano through Vin. However, somehow the Arduino get fried near the CH340 chip, i.e. around the big black square chip near ...
1
vote
1answer
92 views

Is it possible to supply Arduino nano with LED-stripe from 12V [closed]

Arduino max amperage is 200mA with 5V supply. But I can connect arduino with LED-stripe to one 12V 40A power supply in parallel. It gives most balanced power consumption between LED-stripe and arduino ...
0
votes
0answers
41 views

Non-Linear readings on Analog Pin A0 vs. other Pins A1

I discovered a curios behavior of my Nano v3. The analog Pin A0 seems to measure data in a non-linear way while the other pins seem to work normal. Please have a look at the screenshot. This is the ...
0
votes
0answers
70 views

How to make VOLTE/LTE or LTE calls using Arduino?

I want to make VOLTE/LTE calls using Arduino. I searched everywhere in Google. At last I found a website LTE Cellular Shield for Arduino with Voice!. But I cannot find SIM7500 Shield in online shops. ...
0
votes
0answers
31 views

RF24 code not working:

I watched this video and used his transmitter code and receiver code. However, it's not working. There's no response from the receiver. The transmitter stuck at the loop: if (!radio.write( &data,...
0
votes
2answers
71 views

Question about RGB LEDs

I think many people know about the staircase lights, which will get triggered by 2 PIR-sensors (1x upstairs and 1x downstairs). Here is my code - which works well. It's not cleaned up - as i don't ...
0
votes
0answers
31 views

The LED on SIM800L module doesn't blink and the module isn't working

I've recently purchased a SIM800L module from a local retailer. When i have inserted a SIM card and powered it up, the led doesn't blink at all. I have bought the module with a LM317 circuit on board ...
0
votes
2answers
51 views

NeoMatrix Button Troubles

I am creating a 20x15 LED Matrix using and Arduino Nano. My goal is to switch between different "scenes," if you will, using 4 buttons (I just need to run different code to make it display something ...
0
votes
1answer
200 views

Arduino Fried? Power is being delivered to Arduino but COM not found

When i connect my arduino nano to windows 10; the arduino nano is powered on (the "POW" led is on and not blinking; none of the others are on) but it doesn't show up on my computer. It used to but I ...
-1
votes
6answers
3k views

Problems with serial communication from Arduino to Bluetooth HC-05

I just purchased some HC-05 Bluetooth devices and I have followed the directions to put the devices in AT command mode by holding EN HIGH when the HC-05 powers up. When I do this the HC-05 goes into ...
0
votes
1answer
38 views

What is the best way to assign pins to an LED Cube?

I have made an LED cube that is a 3x3x3 design and was wondering if there is way to make a function in the Arduino IDE where each the layers of LEDs can be represented by a list with 1 being on and 0 ...
0
votes
0answers
34 views

FlexiTimer giving errors in servo motion

I am working on a quadruped bot, spiderbot and I am trying to make a creep gait using Forward kinematics however, for some reason my code stops working after the execution of the line - [pwm.setPWM(...
0
votes
1answer
47 views

Sim900a AT+HTTPREAD does not get fully answer

changed the firmware on SIM900B try to send get request http://dummy.restapiexample.com/api/v1/employee/1 AT+HTTPACTION=0returned +HTTPACTION:0,200,98 but, when I try to read (AT+HTTPREAD or AT+...
-1
votes
2answers
69 views

need at least 5 volts but 3.7 lithium polymer battery does not supply enough Voltage

I am building a device using an Arduino Nano, an OLED display and infrared thermometer sensor. I want to make it rechargeable so I am using a 1 cell lipo battery and a tp4056 circuit protection board, ...
2
votes
1answer
7k views

Button with switch timer and reset time function + LED feedback. What am I doing wrong?

Beginner here. I´ve been trying to implement a button function timer working with millis() instead of delay as I want the button to be responsive while the timer is running. So far I´ve managed to ...
0
votes
2answers
68 views

Powering the Arduino with a battery and reading the battery voltage

I am trying to display the battery level as it is being used to power the arduino. I have tried powering the arduino through the USB and the battery voltage is read accurately, when compared to the ...
0
votes
0answers
60 views

USB HID library for arduino nano BLE nRF52 board?

I am looking for a USB HID library for arduino nano BLE board. I want to send keystroke through USB serial from the nano to PC. The conventional keyBoard.h library won't work on NRF52 board. I am ...

1 2 3
4
5
20