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Questions tagged [arduino-micro]

A microcontroller board based on the ATmega32u4 with built-in USB communication.

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8 votes
3 answers
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Are there any reasons to pick Nano over Micro?

Nano is from 2008, and micro from 2012. Micro seems better on every parameter, in particular in having a better (I think) microcontroller, ATMega32u4, over ATMega328P. However, all the shops I've ...
Mads Skjern's user avatar
  • 1,125
8 votes
2 answers
25k views

Arduino Micro vs. Pro Micro

What are the differences between the Arduino Micro and Pro Micro?
user33613's user avatar
6 votes
4 answers
6k views

How can Arduino's 8 bit Microcontrollers handle C++

I have just started getting into Arduino and c++ programming! For all the talk on the internet about c++ being incompatible with 8-bit and even 16-bit microcontrollers, how is it that Arduino ...
Curious 's user avatar
5 votes
2 answers
422 views

How to differentiate between 2 Micros on Linux

I have 2 Arduino Micro based devices that I want to use on my Ubuntu Linux machine. I need them to have unique serial ports. Unfortunately, both have the same serial number which makes ...
Ben's user avatar
  • 153
4 votes
2 answers
3k views

Generate particular pulse using Arduino

How can I generate this pulse with an Arduino Micro? Is it necessary an external component?
Xetam's user avatar
  • 43
4 votes
3 answers
787 views

Mini Voice Recorder for Arduino

I am trying to find a small voice recorder that I can use with my Arduino Micro, and I found this. It is exactly what I am looking for, but it is now a retired product. I googled ISD1932, but many ...
Nobody's user avatar
  • 45
4 votes
4 answers
5k views

How to connect an Arduino Micro to MPU-6050

So I'm trying to connect my Arduino micro to the MPU-6050. I was using this tutorial: https://diyhacking.com/arduino-mpu-6050-imu-sensor-tutorial/ This tutorial worked with my Arduino Uno but not ...
Eduardo Cunha's user avatar
4 votes
1 answer
1k views

Arduino Uno as keyboard

I am trying to make Arduino Uno to act as a keyboard. I have successfully flashed the USB-HID firmware in it using this link also and programmed it like this. uint8_t buf[8] = { 0 }; int inpin1 = 7;...
Mayank Pal's user avatar
3 votes
2 answers
4k views

if(Serial) not working correctly on micro or pro micro

I have an arduino micro and several clone "pro micro"'s both of which are based on the 32u4, i'm trying to make my project have a debug mode which is only active when the serial port is open, the ...
James Kent's user avatar
3 votes
3 answers
769 views

How to have some code executed at a certain time of day with a DS3231 RTC?

I recently bought a DS3231 RTC, but I cannot seem to figure out how to get it to work. I have tried all different tutorials and example programs but I keep getting 2165.25.165 165:165:165 as the ...
Zelkins's user avatar
  • 135
3 votes
2 answers
3k views

Stopping Serial on RX/TX pins while running Serial on USB

The Arduino/Genuino Micro has RX/TX pins and can do serial via USB. But, Arduinos Serial ties them both together, so when using Serial.begin(9600) to send messages between my PC and the Arduino, I ...
iFreilicht's user avatar
3 votes
2 answers
3k views

How to send unmodulated IR-Signal via cable?

I need to generate en (extended) NEC signal. I have connected an Arduino with a display-device via an IR cable. Arduino --> IR-cable --> IR-input of display device IR-cable: One plug is ...
Michael B's user avatar
  • 370
3 votes
2 answers
478 views

How can I share one power supply between an arduino and servos?

I'm trying to power an arduino and a few modules (RF receiver, two servos, and a laser diode) through one power supply. I get jittery/unresponsive servos when hooked up in the following configuration: ...
mirrorcoloured's user avatar
3 votes
1 answer
586 views

Arduino keypad and RF 433MHz transmitter problem

So, the basic idea is that user presses a key on keypad, and key that is pressed is sent with RF transmitter. I got individual parts to work(keypad and transmitter), but can't send the actual key. ...
Milos Tosic's user avatar
3 votes
3 answers
766 views

Is it possible to program Arduino in transpiled JavaScript?

Coming from JS, I find it very difficult to program Arduino in C++ (not even knowing which version or what features are supported), being bound to the loop and delay, not being able to (easily) use ...
Qwerty's user avatar
  • 139
3 votes
2 answers
1k views

Driving single-character alphanumeric (16-segment) displays

I would like to drive three sixteen-segment displays (https://www.sparkfun.com/products/retired/9934) using an Arduino Micro. These displays would output an alphabetic character that a user would ...
Bradley Evans's user avatar
3 votes
1 answer
2k views

Yet another display 16x2 not working with arduino

I found hundreds of questions about display not working with arduino. However, no matter how trivial this looks like I am having the same problem I cannot understand by reading the other posts. I ...
Alex's user avatar
  • 31
3 votes
1 answer
4k views

TCCR1A and TCCR2A on Leonardo

I'm trying to use the TTS library for Arduino on an Arduino Micro board, which is based on the Leonardo. When I try to compile my sketch I get some errors; /libraries/TTS/TTS.cpp: In function 'void ...
NoChecksum's user avatar
2 votes
1 answer
1k views

What's the problem with baudrate?

I was trying to evaluate the speed of communication between pc and Arduino, using this code in Arduino: void setup() { Serial.begin(9600); } void loop() { Serial.println("Ciao Arduino"); } and ...
Francesco Pegoraro's user avatar
2 votes
2 answers
2k views

Arduino Micro tone() PWM Pins

according to the tone() documentation using tone() interferes with PWM output: Use of the tone() function will interfere with PWM output on pins 3 and 11 (on boards other than the Mega). On my ...
D-rk's user avatar
  • 123
2 votes
1 answer
484 views

Using Arduino Micro With 12V Buzzer

I have an interesting situation. I wonder if anyone can help? I have: 4x Arduino Micros loaded with the basic Blink sketch 5x 12 volt buzzers A desk full of completely fresh Duracell AA and 9v ...
stormCloud's user avatar
2 votes
1 answer
184 views

Why wont my custom Arduino-Micro-based board connect over USB?

I designed and printed a PCB for my MIDI controller project with a modified Arduino Micro microcontroller essentially built into the design. I swapped out the USB Micro for a USB-C type port (just ...
Stuart's user avatar
  • 63
2 votes
1 answer
291 views

Arduino-based mains frequency monitor follow-up

Following my previous question, I'm getting closer to thinking about putting together this mains frequency monitor. I would just like to do a sanity check on my electronics before I order the ...
Ozzah's user avatar
  • 193
2 votes
3 answers
2k views

how to communicate MPU-6050 ( on arduino micro) wirelessly using nrf24l01 to arduino uno? [closed]

I have an Arduino Micro and MPU-6050. I'm trying to transfer the data obtained from the MPU-6050 wirelessly to my computer using an Arduino Uno at the other end. I'm not sure how to make this happen. ...
Eduardo Cunha's user avatar
2 votes
1 answer
4k views

Read signal from USB mouse on an Arduino ?

I've got a project where I'd need to read my mouse's signal. My mouse is a G700S (so USB) and the thing was I don't really know how to do and even if it's feasible. I'm using an Arduino Micro and my ...
Thomas Kowalski's user avatar
2 votes
2 answers
1k views

Using Pro Micro without soldering pin

I'm a total newbie. I bought a Pro Micro but I didn't know that it can't be used, if you don't solder things in his holes. I found this picture on Google: And it seems that exists those stuffs (green ...
DarkSkull's user avatar
  • 123
2 votes
1 answer
918 views

Pro Micro recognised as Micro (win10, IDE 1.8.1)

I just got this pro-micro clone 5V and it's my first pro micro ever. After reading lots of discussions about how easy it is to brick and how it's just a smaller Leonardo, I've also found tutorials ...
SF1's user avatar
  • 145
2 votes
2 answers
6k views

Programming Arduino Micro via RX/TX

I can't access my Arduino Micro's USB programming port when it's in my project. I want to reroute the RX and TX pins outside to a serial-to-usb adapter. I have this on hand from a while ago. I found ...
Alex's user avatar
  • 153
2 votes
4 answers
307 views

Can I cut the pin holes off of my Arduino board?

I'm making a project, but my arduino pro micro is just slightly too big to fit in it's case. What would happen if I cut off the pin holes that I don't need? Would it still work? Or would it be ruined?...
M. Collins's user avatar
2 votes
1 answer
1k views

micro arduino and w5100

I would like to ask if it is possible and how to connect the following module http://www.ebay.com/itm/TOP-Mini-W5100-LAN-Ethernet-Shield-Network-Module-board-for-Arduino-Best-NEW-/251981053942?pt=...
kg_root's user avatar
  • 23
2 votes
1 answer
120 views

How to Fix mouse cursor lag on voice & movement based head mouse in wireless setting?

For my head mouse project which is based on the voice recognition module V3.1 for left click, double click, right-click operations, I am facing a problem. I am using 433Mhz Radio Frequency one-way ...
Nahian Rifaat's user avatar
2 votes
1 answer
682 views

Does the MKR WIFI 1010 support the arduino mouse and keyboard controller?

I am working on a project right now that needs to connect to my computer via bluetooth and access the arduino mouse and keyboard library. In my research, I've found that only the Leonardo, Due, and ...
Skouzini's user avatar
2 votes
1 answer
302 views

Detect external ground on an input pin

I am making a bike alarm for my bike. I haven't started yet. Basically, I'm thinking of a pin to be connected to the metal post (to which the bike is locked.) I want to detect if that connection (to ...
Zeeshan Ahmad's user avatar
2 votes
1 answer
330 views

How can I send data to many IC's without using tons of shift registers?

I'm building an audio circuit that will play VGM files (Video Game Music). I have it working with two different "vintage" IC's such as the SN76489 and the AY-3-8912. Currently, my design is using an ...
cbmeeks's user avatar
  • 247
2 votes
1 answer
909 views

Arduino Grounding Issue

I have a project that turns a LED strip on and off using capacitive touch. The project uses an Arduino Micro as the brain and a 12v wall wart to power everything. I have the Arduino ground and ...
Josh Ripley's user avatar
2 votes
1 answer
218 views

Unable to alter SPI speed on Arduino Micro

I am using SPI to communicate with a IMU device which is working perfectly, except the SPISpeed which is not being altered as it should: unsigned int m_SPISpeed = 400000; SPI.begin(); pinMode(...
JavaCake's user avatar
  • 139
2 votes
0 answers
148 views

Arduino Micro digital output pins floating / high Z

so i recently got an arduino micro for a project needing the control of two stepper motors with the A4988 driver. previously i was prototyping on an arduino uno and everything was working fine, but on ...
StanberyTrask's user avatar
2 votes
0 answers
112 views

AC dimmer not smooth dimming

I am trying to create a phase control AC dimmer. But I am not able to achieve smooth dimming. I am using this guide for the circuit: Link On the zero detection part I am able to detect its zero ...
Jack's user avatar
  • 213
2 votes
0 answers
427 views

Triggering actions in Android smartphone via Bluetooth from Arduino

Am working on a wearable using Arduino Micro and I am thinking it would be cool if I can trigger some events in my smartphone using Arduino. Say for example a button press in my wearable should ...
Frank Donald's user avatar
2 votes
2 answers
475 views

De-Auth "attacks" using Arduino? [closed]

I'm trying to use my Arduino and an ESP8266 to spam De-Auth "attacks". I am quoting attacks because I do not plan on using this for malicious or destructive purposes. I've heard that the ESP8266 ...
Leo Takacs's user avatar
2 votes
0 answers
408 views

Having trouble connect nrf24l01 to arduino micro and arduino uno!

I'm trying to connect a nRF24L01 with my Arduino Micro and Arduino Uno. The Arduino Uno works fine, but it doesn't talk with the Arduino Micro. CE is on pin 7 and CSN on pin 8. I posted the code down ...
Eduardo Cunha's user avatar
2 votes
0 answers
337 views

GSM librarys Software Serial conflicts with I2C pins 2 and 3 for Arduino Micro

The GSM library apparently uses the Software Serial library to perform the communication. The Arduino Micro specified pins for the serial connection to the GSM is pin 2 and 3 (doc says, but see def of ...
Per Ove's user avatar
  • 21
2 votes
0 answers
82 views

Can burn bootloader but not sketches... thoroughly mystified!

I have a custom board designed to be essentially identical to the Arduino Micro (Atmega32u4). I can burn the bootloader (Caterina) and it burns just fine, including the fade-then-slow LED signal that ...
Chris vCB's user avatar
  • 121
2 votes
0 answers
499 views

How to detect whether connected to computer

I built a keypad that can adjust volume, play, pause, skip tracks, and control the arrow and num keys. It has some backlighting under the keys. I'd like to turn this off when the computer is off. ...
amoose136's user avatar
2 votes
0 answers
62 views

Arduino micro window focus troubles

I'm currently attempting to use an Arduino Micro as a ducky USB for penetration testing, and currently when I attempt to open a command prompt (or any other window) the window loses focus which ...
J. Doe's user avatar
  • 21
2 votes
0 answers
107 views

Micro + restricted user Win XP = avrdude: butterfly_recv(): programmer is not responding

I have a Micro (original) and I am (trying to) using it under windows XP. I was successful in installing its drivers (by swithching to ad Admin account) and uploading sketches to it, no problem. Even ...
Sredni Vashtar's user avatar
2 votes
0 answers
1k views

Sustainable power source for outdoor arduino weather station

I have been running a simple weather station composed of a Sparkfun Pro Micro (8kHz/3.3V), a DHT22 and a NRF24L01+ transceiver during the last couple of months, and I can tell you up here in Canada ...
retrography's user avatar
2 votes
3 answers
591 views

Connecting arduino to an existing circuit

I have a little clock with a button on it that i need to push four times every second hour. I am trying to get the arduino micro to do it for me. I am trying to figure out how to connect the arduino ...
lobirkeland's user avatar
2 votes
0 answers
64 views

Does anyone know a library that can emulate 3 throttles?

There is this library, but it emulates only one throttle and one rudder. The X Y Z axis don't work because they are addressed from -127 to 127 and I need 0 to 255. I just need one more throttle axis. ...
nik's user avatar
  • 21
2 votes
0 answers
420 views

FTDI Cable to bypass USB for Arduino (Blend Micro) Programming

I bought a Blend Micro (an Arduino Micro with Bluetooth) a few months ago, and after my first experimentation with uploading the Blink sketch something went wrong with the USB connection--it would ...
Murray Todd Williams's user avatar