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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 try to use three PWM pins on an Arduino Nano, each with 10kHz. I know that there are timer0, timer1 and timer3 but I wonder if I can combine them while ensuring all three PWM pins to be in sync and ...
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I have 2 Arduino Nano that will communicate in half duplex mode with transceiver using MAX485. But the master has libraries like Wire.h, uses tone() and also receives UART communication. I'm a ...
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Here's a brain teaser for you: I have the following 3 digit 7 segment display that has only 6 wires Experimentally I found out how it works, even though I don't understand it, but anyways every ...
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When I plug in my nanoatmega328 to my computer, nothing shows up in /dev as I expect it to. If I plug in my Uno, /dev/ttyACM0 shows up. I have tried several Nanos. Linux Mint 17.2.
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I'm running to an issue when measuring my sensor outputs. Previously I've connected my sensors directly to Nano analog pins and measured fine, but I want to use more sensors so trying a mux. Any help ...
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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 ...
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I'm looking to play songs from a DF Player mini and for that I use the SoftwareSerial.h library but my code keeps compiling an error that it's not there. In addition, the error only appears when I use ...
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So I am working on an Arduino project and have trouble communicating over UART. I have a SIM7600G-H 4G Module from Waveshare and hooked it up to an Arduino Nano ESP32. The connections are as follows: ...
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Pretty much as the question states, I'm wondering if it's possible to connect (this: https://www.waveshare.com/7.5inch-HD-e-Paper-HAT.htm ) 7.5" e-paper display that has raspberry pi HAT and an ...
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If I have multiple NODES one on each Serial port (and / or SoftwareSerial port) all of which have the same code for execution can the names of each Serial port be put into an array such that I can say:...
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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 ...
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The essence of the task I have a task to connect an external device with my arduino and transfer data to each other via the UART protocol. The external device has 4 pins (Two for power supply and RS-...
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I am trying to set up an Arduino Nano ESP32 so that I can code in MicroPython. I successfully installed Arduino Lab for MicroPython and flashed the firmware onto the device, but when I try to run the ...
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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 what ...
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I have a bunch of Arduino Nano boards with the CH340 chip. When I want to upload code to a board, it sometimes works the first time, sometimes it doesn't. Afterwards, it mostly doesn't work anymore. ...
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I accidentally connected the 3.3V output and 5V output to the same connection. How bad is that and what issues could that cause? I was busy with making my first project which uses a module which runs ...
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I'm trying to write an Arduino sketch which pings multiple hosts and switches some RGB LEDs to indicate the status of the devices on my network. This question is a followup of ParseIP in the EtherCard ...
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We are making a simple pulse oximeter device with an Arduino Nano and a MAX30102 sensor. The problem is the SpO2 reading and processing algorithm of the MAX30102 library literally does signal ...
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I am currently using an ESP32-CAM with an OV5460 camera, and I am interfacing it with my computer using an Arduino Nano. I am trying to run a camera web server using the Arduino example code. I have ...
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I have a circuit which consists of a pushbutton and 2 relays. The power supply is driven either over USB, where the circuit seems to work fine, or powered by a linear regulator board I've knocked ...
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The RTC module can output the hours as 165, and the minutes as 165. This is some random number that is different every time. Everything works fine, but at random times I get this. Maybe once every ...
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I'm trying to add a watchdog on an Arduino Nano, for my code, and I'm following the code in this manual exactly, but after the amount of time for not resetting the watchdog, it resets but does not ...
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I'm working for a project to control an RGB LED Strip using a microphone or sound sensor with the Arduino Nano. I'm using 5050 RGB LED Strip with around 120 LEDs, and I control them using a simple ...
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I realize that using float results in loading all or at least parts of the floating point library, which consumes a significant amount of memory. How can I avoid using float?
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I feel a little like I am back in 1975 trying to fit my code in 4K of RAM. I am writing some code for an ATTiny88, and the code is starting to get big, relatively speaking. I need to save every byte ...
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I'm trying to modify the pings example from the EtherCard library so I can ping multiple hosts. The end result should be a small device which monitors other devices on my network. Here is the modified ...
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Consider a scenario where two (or more) master devices (the NodeMCUs, in this case) share an I2C bus with one (or more) slave device(s), like thus: Would this be a feasible setup? In other words, ...
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https://youtu.be/oVZgFsWsKPM][1] I'm a beginner in Arduino. I made a 12-hour common cathode 7-segment clock. I made a 7-segment display with LEDs, using Arduino Nano. If I use a long period of 1,000 ...
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I'm trying to program a board I designed with an ATTINY1616. The schematic is shown in the photo. I'm trying to connect an Arduino Nano. +5V and GND are shared, while the UPDI pin is connected to the ...
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I have one display screen, and 5 Arduino Nanos. They are checking to see if passwords in a text file hash to a specific hash, then display it on the screen when found. Since they aren't all sending ...
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Thank you for considering my question. I have been learning Arduino so I can teach coding basics to my son. I came across a fun project to interface bluetooth with an old singing Billy Bass so he can ...
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I am building a project with Arduino Nano and the component in the subject, which, as far as I understand, can be assimilated to a DFPlayerMini (not sure if it's the same thing or it's just a cheap ...
Greenonline's user avatar
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I am using an ATTiny88 to measure temperature using a 470 ohm thermistor attached to port A3 on the Arduino. The thermistor is attached in series with an 1870 ohm resistor connected to Vcc. At room ...
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I recently got two of these ATmega328P Nano SuperMini USB-C boards but none of them is being recognized by my PC or Mac. I'm using the old bootloader setting in the Arduino IDE 2.3.6, CH340 drivers ...
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The maximum ADC sample rate for the '328p, using the default prescaler of 128, is given as roughly 10000 samples per second. Maybe I've missed it, but I can't see whether that is the total rate for ...
Edgar Bonet's user avatar
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I've built the attached circuit with the following changes: I used Arduino Nano. I used 10K pot. 12V is connected to VIN pin (instead of RAW). The Arduino was connected to the PC by USB for the use ...
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I have intermediate-level Arduino experience but it's been a few years... and, I would like to be more confident in a plan before ordering all the parts. So, basically, this is theoretical. The design ...
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I'm new to Arduino development. I use Arduino Nano v3 ATmega328P (Old Bootloader). I assembled 2 small boards, one of which is a transmitter with three buttons, and the second is a receiver with three ...
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I'm a bit of a noob in the Arduino area but I found an Arduino nano I bought a long time ago sitting on my shelf and collecting dust, so I taught "why not make a project". I game a lot of racing ...
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I have this issue where I'm transmitting sensor data from Nano Sense Rev 2 (transmitter) board to Nano 33 BLE rev 2 (receiver). The receiver keep failing to detect and connect to the transmitter and ...
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I'm working on a linux machine with avrdude and avrgcc. NOT using Arduino IDE. I'm using Arduino Nano 33 SENSE REV2 BLE, trying to upload a sample blink .c program and getting this error. This is the ...
liaifat85's user avatar
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I'm trying to make a box that revolves around a pivot point using a NEMA17 stepper motor. The idea is straightforward: US1881 Hall effect sensor will change state based on magnets on the base of the ...
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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 ...
Greenonline's user avatar
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The code below has a normal bright led on the 5th pin of port F while those on port B, 0, 1, 2 are dimmer. Even if you hold down one button and a moment later simultaneously press another button while ...
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I'm trying to get some C code that runs on a PIC18F, working on an Arduino '328P. It uses an 8-bit timer, PWM, and a LUT to generate sine waves. I hope to get it going using Timer2 on a Nano. The PIC ...
Jim Mack's user avatar
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The Seeeduino Wiki claims that it can run on 3.3V/5V. It doesn't specify if it can step down higher voltages. I am looking to power the XIAO using a battery. It usually uses a USB-C cable which can ...
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I have rigged two different DHT22 sensors to an Arduino Nano board. Both temperature readings are more or less comparable but they produce very different humidity readings. The sensors are: Sensor No....
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I'm sorry, could you help me create this arduino-based device? you need to create a tachometer, but not with a hall sensor, but with a photoresistor and an LED. The value should be transmitted to the ...
liaifat85's user avatar
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I am working on a simple code to write data to a MicroSD card using Arduino nano ESP32 (ABX0083) and Df robot SPI MicroSD card module(DFR0229). I am not able to write to the SD card. I get the error ...
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There are a lot of methods to power an Arduino from a large range of voltages: USB cable from PC or from a phone charger or an USB hub step down converters step up converters switching power supply ...
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