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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3answers
974 views

Interface a mobile phone's finger print scanner with arduino

Is it possible to salvage a fingerprint scanner from an old and dead smartphone and use it with Arduino? I am not talking about writing an android program and send data to Arduino over Bluetooth or ...
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3answers
2k views

Arduino nano stopped working

After programming Arduino Nano with the DIY Headtracker code, after trying to plug the Arduino to the receiver and some time, the LED stops flashing and now it's not recognized by the computer anymore....
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1answer
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7 segment 4 digit not showing numbers 2,3 and 0

https://www.instructables.com/Using-a-4-digit-7-segment-display-with-arduino/ I used this link to make my circuit and I used this code also but some numbers like 2,3 and 0 doesn't display correctly.
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716 views

USB FT232 driver on M1 mini

I've scored a couple Nanos with FT232RL chips but can't see them on my brand new M1 mini. Can someone point me at how to determine whether v11.1 supports this USB chip? It appears that the device is ...
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1answer
203 views

Is the Serial buffer going from Arduino to PC and from PC to Arduino different?

I'm both sending and receiving strings to Arduino from my Python program on the PC and the opposite. I don't check by code if one is finished before doing the other. Are they seprate buffers, or is it ...
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1answer
77 views

PWM Input Pins Never Receive a Value from Working Receiver?

I have a very simple sketch that's supposed to intercept the signal from an RC receiver and print the pulse duration from that channel. Sketch int PwmPin = 9; unsigned long duration; void setup() { ...
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1answer
487 views

HTTP POST/ METHOD to Emoncms doesn't work

So Ive setup the emoncms on my server and posted the example power1:100…power3:300 JSON POST and it logged in my INPUTS. Now Im trying to send data from my arduino and it seems to post fine, but when ...
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3answers
106 views

Read analog port set as output

I have a PWM analog port that is outputting a frequency, is it possible to do an analogRead on the same pin and get a correct value? If so, will reading that port disrupt the freq output on the pin? ...
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1answer
1k views

HMC5883L not working in continuous mode!

I'm just starting with the HMC5883L, I'm writing my code with C and also my own I2C library. I noticed that the values on the Arduino IDE's serial monitor are constant. Then I developed a function ...
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1answer
6k views

How can I update global variable within a loop from outside the loop?

I have this code, but its not working. If I type "ReportFRQ 1" (or 0) it reports back that FrqON variable has changed but the behaviour of the loop doesnt. Basically I am trying to switch parts of the ...
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436 views

Programming other Atmel chips(excluding Atmega 328 and 168)

How can we program any other chips of Atmel using Arduino Nano as a Arduino ISP ? Excluding the Atmega 328 and 168.
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2answers
978 views

Controlling multiple fans using arduino uno

I'm kind of new on the field of Arduino. Although I have a question concerning multiple fan connection on 1 arduino PWM pin. The goal is to connect around 8 to 16 fans on 1 arduino pwm header pin and ...
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2answers
12k views

HC-05 Bluetooth Module - INQ-Command doesn't work

For a project I need to connect a Bluetooth Remote control with an Arduino Nano. The Problem I am trying to setup a connection to said Bluetooth remote Control. This device is visible! (I have ...
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2answers
848 views

How to power Arduino nano and LED strip?

I am making a project that uses an Arduino nano and a sound detector module to power a 1m LED strip. I got the idea from this video and I am not sure how to power it. My LED strip flashes for a split ...

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