Questions tagged [arduino-micro]
A microcontroller board based on the ATmega32u4 with built-in USB communication.
189 questions
-1
votes
1
answer
110
views
I2C Scanner does not recognize LCD screen with 1602 I2C module
I'm sorry to ask this, as it has been asked many times, but I can't get the Arduino micro board to recognize my LCD screens. I've tried using two different LCD screens and two different Arduino micros....
2
votes
1
answer
180
views
Which Bluetooth Module can I use with Arduino Micro?
I am building a HID (mouse) using Arduino Micro. I want the mouse to communicate with the PC wirelessly. I am wondering which Bluetooth module works for me either HC-05,06 or any other?
- 39
1
vote
1
answer
366
views
Square wave generator generates a shorter pulse from time to time
I am using an arduino Micro to generate 8 square waves on 8 pins. The idea is as follows: on pin 13 is the main square wave. It represents a certain BPM (beats per minute). The other 7 pins should ...
- 294
1
vote
1
answer
3k
views
avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied Upload error:
I am using arduino-ide2.0.0-beta.7(CLI Version:0.18.3 alpha) on Manjaro Linux and I get this error when uploading sketch to my Arduino Micro:
avrdude: ser_open(): can't open device "/dev/ttyACM0&...
- 133
0
votes
1
answer
428
views
Connecting microSD reader and e-paper display to Nano at the same time?
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 ...
1
vote
1
answer
3k
views
What does a tilde (~) mean as annotation for a data pin?
When I examine the datasheet for the Arduino Micro (couldn't find the Pro Micro on their site, btw) then I see some data pins annotated with a ~ character, and some are not.
For instance, D9 has a ~ ...
- 219
1
vote
1
answer
227
views
Why wont my custom Arduino-Micro-based board receive power via USB?
UPDATE: I believe I have mostly solved the power issues, but now have USB connectivity issues described in EDIT 3 at the bottom.
I designed and printed a PCB for my MIDI controller project with a ...
- 63
1
vote
2
answers
16k
views
Arduino Pro Micro not recognised by computer or showing up in ports
Around 4 days ago my Arduino Pro Micro arrived. I've been messing around with it, using it to run keyboard commands on a computer. Just recently, whenever I plug it in to the computer it isn't ...
- 11
1
vote
0
answers
41
views
Poor Contact and Low Current Issues with Microswitches in Arduino USB Game Controller
I have made a USB game controller using the Arduino Micro and Omron microswitches (VX-01-1A3) for the buttons. The switch is wired with one end connected to a digital pin and the other end connected ...
- 11
3
votes
2
answers
615
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:
...
- 131
0
votes
1
answer
288
views
Cannot call function in call back for onRequest()
I am a NOOB! Trying to use the ZS-042 RTC module to retrieve the current time and send it back to the RPi over I2C. I can call the function and spool it to Serial but when I try to call the function ...
- 9
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 cutted ...
- 370
1
vote
1
answer
2k
views
Arduino Joystick Library not Recognized by Games (Steam)
I have an Arduino Pro Micro running code that uses the Arduino joystick library to act as a gamepad. I'm just doing testing right now so there's a single button wired up and configured in the code.
...
- 11
0
votes
1
answer
1k
views
Wiring Multiple MPU 6050 to Micro/Lenardo
disclaimer I am new at hardware/circuits
I am currently trying to connect two MPU-6050 to a single Micro board.
In addition, there are 5 additional buttons to be connected.
I am under the impression ...
- 101
-1
votes
1
answer
1k
views
Reading Buffer from Software-Serial & Writing to Serial
My progress so far:
#include <SoftwareSerial.h>
SoftwareSerial ttySerial(10, 11); // RX, TX
byte buffer;
void setup()
{
// Open serial communications and wait for port to open:
Serial....
- 109
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 ...
- 153
0
votes
1
answer
786
views
HID with bidirectional communication
I want to build a gamepad HID using the Arduino Micro, and intend to use Nico’s HID library for that.
But I would like to send some config info from the PC to the Arduino HID as well.
Can you have a ...
- 219
0
votes
1
answer
1k
views
STM32 as keyboard
I would like to use a STM32F105xx to build my own computer keyboard.
That MCU has support to USB OTG (FS).
So, I have 2 questions:
Can I flash microcontroller with usb or I need a external
programer?
...
- 103
1
vote
1
answer
447
views
How to send and receive multiple integer values through serial comm for Arduino Micro and HC05 bluetooth?
I need to send gyroscope values and a voice command flag and counter with a start and end marker through serial in the format <2,4,5,6> through Arduino Software serial using the HC05 Bluetooth ...
- 161
0
votes
1
answer
1k
views
Micro is not recognised as HID device
Being a completely noob with Arduino (but not with coding though) I'm trying to create a simple buttonbox with a Micro unit.
For now, I can not figure out what should I do to make my Windows 10 ...
- 21
1
vote
2
answers
1k
views
Sound localization using two mics, Arduino Uno on MATLAB
I have been trying to achieve this for a long time using the ITD method and have gone through various articles on the net.
I want to know if its possible to actually achieve sound localization using ...
- 111
0
votes
2
answers
191
views
Arduino Micro & Thin polymer lithium batteries
Is this battery:
Polymer Lithium-ion Battery
Model Number: PGEB014461
https://www.powerstream.com/p/PGEB014461.pdf
Producing enough energy to power the following Arduino-micro project:
...
- 119
1
vote
1
answer
781
views
Unexpected negative values from abs() function inline with analogRead
When sampling from A0 with a 0-5V signal on an arduino micro with the code below I get some negative values.
int sensor = 0;
sensor = abs(analogRead(A0) - 512);
Values:
77
25
-74
-58
46
113
-74
102
-...
- 131
1
vote
1
answer
1k
views
Send big amouts of data to PHP script via gsm module SIM800L
I'm looking for a way to get lots of sensory data from my Arduino Micro to a PHP script.
My current attempt is using the following AT-commands:
Sent: [AT+HTTPPARA=URL,www.example.com/newData.php?data=...
- 174
1
vote
1
answer
494
views
How to Read ADC value without Common GND ? (Possible or not !)
I want to Read external signal with the microcontroller.
But the problem is that ADC does not work because the signal GND and the microcontroller are not Common,
My question is, have you ...
- 35