An Arduino board based on the ATmega32u4 chip with built in USB HID functionality
0
votes
1answer
15 views
What is wrong with my 32u4 breakout board from adafruit?
I recently bought the atmega 32u4 breakout board from adafruit. I uploaded a sketch, then it says that there isn't a timer 2 on it and it won't do as I programmed my sketch. how can I fix this?
0
votes
1answer
7 views
Where are the digital and analog pins for the adafruit atmega 32u4 breakout board?
Which pins are the analog and digital pins? I've been searching the internet for an hour and I could get an answer.
0
votes
0answers
15 views
arduino leonardo stops transmitting once hdmi cable is connected to a screen
I am using arduino leonardo for moving mouse pointer with head tracking using MPU6050. It works fine in general. But as soon as I connect an external lcd screen to my laptop via hdmi cable, it stops ...
0
votes
0answers
18 views
Clone pro micro serial port 'COM4' already in use
So I just got this board I ordered from ebay and tried to play with it for the first time. ...
0
votes
0answers
31 views
Starting usb on pro micro after deep sleep (ATmega32u4)
I have just started playing with a low power arduino project, and have managed to get the power drain down to about 220uA using powerDown from LowPower.
What I would love to be able to do is start ...
0
votes
0answers
42 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 ...
0
votes
1answer
26 views
Overriding main function in Leonardo
I've trying to write my code in plain C++ dropping out the Arduino's IDE. Although I've succeed in compiling the code, whenever I try to upload it to the board it doesn't run, seems that it stucks at ...
0
votes
2answers
63 views
Conflicts with USB and external power supply
I want to power an Arduino Leonardo with an external power supply and simultanously communicate via USB. I have read some other threads on this topic, therefore, I know that if one supplies more than ...
1
vote
3answers
125 views
How big of a difference is there between an Arduino Uno and the rest?
Lately I've been fooling around with a project for my Microsoft Sidewinder Force Feedback Pro Joystick. I've found out that there is a project currently for it built for the Teensy 2.0. On the page ...
-6
votes
1answer
223 views
STEPPER MOTOR CONTROLLER Using LEONARDO PRO MICRO
I want to Use LEONARDO PRO MICRO and A4988 Stepper Motor DRIVER to control Nema 17 Stepper Motor.
Please let me know how to hookup these together.
Please give me a circuit for this type of ...
0
votes
2answers
138 views
Send Keyboard Media Keys with Keyboard Library
I have an Arduino Pro Micro (ATMega32u4) that I want to use as an IR receiver for a media PC and need to send codes like Volume Up, Media Home, Play, etc. But when I look up the scan codes for those ...
2
votes
1answer
94 views
Interfacing Arduino Leonardo with PCA8574AN
I'm trying to interface my Leonardo with a "Mindsensors Magic Wand" - 8 LEDs connected to a PCA8574AN chip.
On the manufacturer's page, they say it's compatible with Arduino, however no instructions ...
0
votes
0answers
106 views
Matlab to Arduino communication
I am doing some computations on Matlab and I need to send those values to an Arduino Leonardo through USB serial connection. I need to send 2 variables which can vary from -400 to +400. I'm saying ...
0
votes
1answer
59 views
Uploading new sketch to Leonardo-type boards when you've changed the HID mode
I have Sparkfun Pro Micro (Leonardo compatible board). I got it because I plan to build my own array of controls for use in flight/racing sims.
My starting point is LeoJoy, and I didn't have any ...
0
votes
1answer
178 views
How to generate Chirp Signal using Arduino
i would like to generate Chirp Signal (Frequency Sweep) using Arduino. i have searched a lot in internet but didn't find anything.
Basically, any parameters is also ok. But the concept is what i am ...
0
votes
1answer
207 views
Arduino board not recognized by Linux (dmesg, lsusb, etc.)
I just received my first Arduino board which is essentially a Leonardo (ATmega32U4) customized to include a NFC reader (PN532).
When I plug it in, the PWR LED comes on steady, the D13 LED flashes a ...
2
votes
1answer
425 views
Does Leonardo need a separate power supply?
I'm currently using an Arduino Uno (R3), but want to switch to Leonardo for the USB-ability. The Uno can work from the USB's 5V. Looking at the Leonardo's schematic it seems the only input to the ...
0
votes
0answers
48 views
Wido wifi communication
Any one here tried WiDo (DFrobot) ? I need some help regarding wifi communication among two robots. I want to communicate with two robots via wifi (WiDo module).I dont have a clue to do it. Any clue ...
1
vote
2answers
134 views
Arduino Leonardo on Win 8.1 COM port disappeared
I've been using an Arduino Leonardo on my Windows machine for a few days now without too much trouble but today the COM port disappeared. I've been able to successfully send sketches to the arduino ...
0
votes
0answers
66 views
Leonardo with xbee shield?
I'm trying to get a XBEE shield to operate on an Arduino Leonardo. Usually i use the AltSerialLibrary to emulate an extra serial for the xbee. However since the Leonardo comes with two sets of serial, ...
0
votes
2answers
100 views
Controlling Arduino from Raspberry Pi
I am trying to control an Arduino Leonardo R3 to run some code when "triggered" from a Raspberry Pi, this would be in a loop so that it can be ran multiple times. I have setup the Raspberry Pi and ...
0
votes
1answer
547 views
Mac won't detect Serial Port for Leonardo
EDIT: The problem was the cable I was using (see answer below).
I have a MacBook Pro running OS X Yosemite (10.10.1). I connected my Arduino Leonardo to my computer for the first time today (using ...
0
votes
1answer
42 views
Blend with SD Shield
Building a data logging and transmission system here. I've a RedBeadlab Ardunio Blend with built-in BLE capabilities and a (cheap) SD / Data logging shield that looks very suspiciously like it's ...
0
votes
0answers
126 views
9v adapter burned out Leonardo style board
My first experience with Arduino ended in a tragedy. I bought a Leonardo from ebay and upon arrival, attached it to my laptop. Programmed a simple blink demo with the onboard LED. It started working. ...
0
votes
1answer
94 views
Arduino Leonardo is not recognized by usb cable in Windows 8
My Arduino Leonardo was working properly but for the last two hours when I connect it to a PC via a USB cable, it is reporting something like USB is not recognized and even in device manager it is not ...
-3
votes
1answer
327 views
how to serially communicate the arduino leonardo to pc through hyperterminal
I have connected mc to a pc using USB. I need data on hyperterminal through serial to USB connection, hence I connected TX, RX and gnd pins of the Leonardo to the rs232 pins and one other side of ...
0
votes
1answer
115 views
Arduino hangs after 3-4 minutes on battery power, but not on USB
I have a simple sketch running on a BE Leonardo-compatible board.
It reads input from a potentiometer, and outputs to two RGB LEDs which change colour over time - in a different pattern if certain ...
1
vote
0answers
134 views
How do I troubleshoot Seeeduino GPRS shield?
I am trying to receive an SMS message using the code, below, copied from Seeeduino GPRS - Wiki, with no success. Although there are several versions of the Seeeduino GPRS shield, mine is identical to ...
2
votes
3answers
382 views
Explanation please, of hardware and software serial links
I am starting to use a Seeeduino GPRS shield (please see note), which is essentially an Arduino Leonardo that, among other things, can be used as a mobile 'phone for sending and receiving texts. I ...
1
vote
1answer
282 views
Unable to upload sketch to Leonardo
I'm really at my wits end. For a couple of hours I have been programming a custom board that uses everything as on the Arduino Leonardo. A few hours ago I am not able to upload anymore.
I get the ...
0
votes
1answer
105 views
How would I establish a serial connection with python without using the serial monitor? [duplicate]
How would I establish a serial connection with python without using the serial monitor?
What I want to do is give my python script some input and have the arduino do something (blink for example)
I ...
0
votes
0answers
74 views
Talking between Arduino and PC (Java)
I have to realize a communication between Arduino Leonardo and a demon which runs on a pc.
The demon has to tell Arduino informations about the operative system of the machine to which it is ...
0
votes
1answer
820 views
Pixy(CMUcam5) robot Distance code
Can anyone help me with the code-ing to allow the robot to stop at a certain distance when the robot is approaching the tracked object. I am trying to implement it as a colour tracking wheel chair. ...
0
votes
1answer
55 views
Over voltage on Arduino and Ardumoto
I am using Arduino Leonardo and Ardumoto to drive 2 12v motors running at 1.3 amps each.
I purchased a rechargeable battery of 12V with 5AH
I first started by plugging in the battery to the Arduino ...
0
votes
3answers
148 views
How to control android app with arduino
I'm trying to connect Arduino Leonardo to an Android tablet. I would like to make the Arduino send commands (using pushbuttons or a slider for example) to the tablet to switch between pages, to select ...
0
votes
1answer
154 views
Arduino IDE Unable to detect ZumoMotor.H ( PIXY PET )
recently i trying to make the pixy pet work for my project. (https://learn.adafruit.com/pixy-pet-robot-color-vision-follower-using-pixycam/playing-with-your-pet).
I used the given code for the ...
1
vote
1answer
268 views
USB MIDI HID with the ATmega32u4?
There are existing projects that allow the Uno and other devices using the ATmega8u2 to operate as a USB MIDI HID, such as MocoLUFA. Unfortunately, as far as I am aware, these require uploading new ...
1
vote
1answer
451 views
Confusing Arduino Leonardo PWM
I'm having problems with using Arduino Leonardo PWM outputs (I'm actually using YUN board).
I need 4 PWM outputs that generally have the same base frequency of around 10 to 20 Hz or so.
I'm using ...
1
vote
4answers
2k views
How to connect the INT pin of a MPU 6050?
I am using an Arduino Leonardo together with a GY-521 breakout board (like this one, schematic) for an MPU 6050.
I am currently trying to get the DMP Version of the examples from Mr Rowberg to work.
...
1
vote
1answer
544 views
Why is Arduino STINO upload function not working?
I'm using sublime text for editing and modifying my arduino libraries. Sublime text is pretty pretty, useful and embed a very powerfull plugin system. Someone created an Arduino plugin for it. The ...
0
votes
1answer
174 views
Wrong Mouse.move() output in Arduino Leonardo
I'm using my Arduino Leonardo as a Mouse but I'm experimenting a strange behaviour.
I put my mouse at (-1, -1) (absolute) coordinates and then I execute this code:
Move.move(com[curr_cmd_id].x, ...
1
vote
1answer
282 views
I2C seems to stop working when I attach an AF motor shield
I have a cheap MPU 6050 chip that communicates over 3.3V I2C. I can talk to it just fine on my Leonardo. If I add an additional Adafruit Motor shield (the old one), my MPU 6050 demo sketch hangs ...
0
votes
0answers
391 views
Using Leonardo and getting absolute x,y Mouse values
Trying to modify the native mouse methods so that it can use absolute, rather than the relative values it currently uses. This is so it can function as a touch screen pointer, and NOT a mouse.
Am ...
1
vote
3answers
886 views
Leonardo: disable TX- and RX-LED
I have the (more or less) Leonardo-compatible board Olimexino-32u4. Both, the TX- and RX-LED are permanently on. To reduce power-consumption, I want to disable them by software. What is the reliable ...
0
votes
0answers
83 views
Arduino Controlling through C#
i would like to measure some signals from arduino and send it to a pc using USART and display the results in a c# winform application. Does anyone have such a project example ?
Besides, i want to send ...
7
votes
4answers
489 views
Leonardo (32u4): ways to brick it programmatically
When the Leonardo was introduced, I think, I've read some articles about being cautious to do some things, that could cause it to not load any new sketches any more, so one has to rewrite the ...
0
votes
2answers
209 views
Leonardo (32u4): Timer0 problems with CTC mode
I want to use timer 0 to generate a rectangular signal on OC0A (D11) without the use of Arduino specific functions (that use timers for themselves). When I toggle D11 manually using a loop, I hear a ...
1
vote
1answer
1k views
Problem loading sketch to Leonardo
Today I got Arduino Leonardo to replace my Uno. I've tried running one of sketches I use on the Uno, but with no luck. When I start the upload, RX LED on the Leonardo flashes few times, and after ...
1
vote
3answers
331 views
What's wrong with my undetected, unresponsive Arduino Robot?
I was wondering if someone could try and solve a major problem I've been having with a brand new Arduino Robot (similar to an Arduino Leonardo). Any input would be very much appreciated!
I've been ...
0
votes
0answers
111 views
Adafruit 2.8'' TFT Board SPI vs 8-bit Mode
is anyone out there who can tell me, if there is an extreme noticeable difference in using 8-bit or SPI Mode?
In later Projects I want to display values on it and refresh them in a 1 - 1/2 second ...
