The arduino-pro-micro tag has no usage guidance.
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Pro Micro - Measuring voltage between two pins, without using GND
Quite new to this but making pretty good ground. I have an issue I'm not sure how to solve. I want to add a Pro Micro to an RC Toy, I can easily power it from the toys GND and 5V power. But then I ...
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0answers
15 views
Arduino Pro Micro Clone Clock Cylce Issue
I have several Arduino Pro Micro Clones that are giving me an issue where they work immediately after being programmed while the usb cable is still connected, but as soon as I disconnect and reconnect ...
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0answers
35 views
Arduino Pro Micro and HC-05 Bluetooth module
I am using Sparkfun Arduino Pro Micro with an ATmega32u4(3.3v, 8MHz) on it (https://www.sparkfun.com/products/12587) and a HC-05 Bluetooth Module. I also running this on Windows 10.
I've made these ...
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2answers
42 views
Arduino Pro Micro troubles
I recently bought a brand new Arduino pro micro from Amazon, I set it up according to the instructions on sparkfun, except that when I plug it in, Windows doesn't even show that it tried to install ...
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2answers
107 views
Hardware network-infrastructure for a fully-arduino-based home-automation project
As already mentioned in another question, I'm spending LOT of time planning the home-automation system for my new house (currently still in the "still building" phase).
Even if started only as a ...
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2answers
26 views
How do I change pin assignments for the LUFA AVRISPMkII?
I just managed to get Dean Camera's LUFA AVRISP clone working on my Arduino Pro Micro, when to my dismay I found that to use PDI for my XMega, I need to have PD5 exposed for the clock source! The Pro ...
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1answer
107 views
I can not upload hex files outside of the Arduino IDE to my Pro Micro
I have a strange problem. I am trying to upload a .hex file to my lovely Arduino Pro Micro, but am unable to do so. If I use the Arduino IDE, it goes through perfectly fine and uploads the sketch. ...
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1answer
58 views
MicroSD interfering with ISP programming
I have a microSD connected to an Arduino and I can't program it over ISP without removing the SD card. Does anybody know how to prevent the SD card from interfering with the ISP programming?
Details:
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2answers
183 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 ...
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2answers
140 views
Pro Micro clone worked fine, now RxLED stays on and can't program it
I have burned out a few Pro Micro clones now. Initially I ran them using a 12VDC external raw power supply but two Pro Micro clones burned out pretty quickly this way. Another thread suggested that ...
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1answer
88 views
Nokia32/RCMM IR decoding issues
I am trying to decode the IR signals from a remote. I'm using an Arduino Pro Micro, and a TSOP38238 IR receiver.
I found out that the remote uses the Nokia32(RCMM) protocol, and I have been able to ...
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3answers
5k views
Error opening serial port 'COM1'. (Port busy)
Im using the arduino Micro pro to read the data out of a temperature sensor (lm35). The program is compiling and NOT uploading, but when I try and open the serial monitor is says: Error opening serial ...
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1answer
61 views
Pro Micro Voltage regulator burned
I'm using Arduino Pro Micro (5v version) in one of my project for my car. The car's 12V +ve connected to RAW input of ProMicro and everything seems to work perfectly until I crank the ignition of my ...
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0answers
39 views
Pro Micro and LilyPad USB
Is there a difference between Pro Micro 8MHz 3.3V and LilyPad USB bootloaders?
Both are based on 32U4 running at 8 MHz.
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1answer
147 views
Arduino Pro Micro Analog Pinouts
I have the Arduino Pro Micro and I would like to use all the analog pins that I can on it.
It currently looks like it has a total of 9 Analog pins that can be used.
A0, A1, A2, A3, A6, A7, A8, A9 ...
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1answer
101 views
nRF2401 communication (extended vs normal)
Communicating to the antenna-less version from an extended range nRF2401 seems to produce some strange results...
At a distance, the receiver seems to receive a number of values instead of one. For ...
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0answers
31 views
Graphic fail when rebooting the micro controller and OLED! (NOT when uploading the code??!!)
Im using Spark fun´s Pro micro: https://learn.sparkfun.com/tutorials/pro-micro--fio-v3-hookup-guide/hardware-overview-pro-micro
And Digole OLED 1.8" hooked up with UART: ...
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3answers
274 views
Running a servo and tone() won't compile? “multiple definition of `__vector_32'”?
Im using Spark fun pro micro:https://learn.sparkfun.com/tutorials/pro-micro--fio-v3-hookup-guide/hardware-overview-pro-micro
I am controlling a servo motor which reads its data from a pot connected ...
1
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1answer
188 views
Calculate how much battery power left
I run my 12V car battery trough a trimpot into my pro micro, micro controller.
I am using (voltPinValue1 * 0.01465) to get the Volt out of analog in. I have trimmed the pots and getting the right V.
...
-1
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1answer
166 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. ...
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1answer
44 views
Use Arduino pro micro to program pro mini?
So I got a pro micro and 2 pro minis and I was wondering if I could use the pro micro to program my minis? Anyone has any links or guides on how to do this, if at all possible?
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2answers
264 views
Problems with (somewhat) large boolean arrays
I am writing a simple Conway's Game of Life implementation just to get to grips with the "Nokia 3310" LCD and I am having problems with boolean arrays. I am using an (unofficial) Arduino Pro Micro ...
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1answer
842 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 ...
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2answers
2k 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 ...
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4answers
2k views
Arduino Pro Micro clone not recognized, flickering RX LED
I have an Arduino Pro Micro clone that seems to be in some sort of reset loop.
The RX LED is flickering very fast and very dim.
The power led also seems to flicker at the same frequency but has normal ...
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1answer
4k views
All the differences between arduinos: Pro Mini & Pro Micro
I'd like to know the differences between this two boards: Arduino Pro Mini and Arduino Pro Micro.
Even if I've read this and this related post, it is not clear enough. I've always used the Arduino ...
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1answer
99 views
What are the current limits on an Arduino Micro?
Just to make sure I don't set my board on fire, is there any information out there about the maximum current per pin/pin group on an Arduino Micro?
This page states I can get 40mA per pin, but are ...
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0answers
287 views
USB Keyboard in Retro Emulators
I have created a retro keyobard using a ZX spectrum and a PRO MICRO based on the info here: http://blog.tynemouthsoftware.co.uk/2013/04/arduino-leonardo-based-zx81-usb-keyboard.html
When plugged into ...
4
votes
1answer
558 views
Strange values from LSM303 Magnetometer
I am having problems with values i get from Pololu MinIMU-9 boards's magnetometer. I am using Arduino-micro and the arduino library from Pololu. The sensor on the board is 3 axis accelero- and ...
2
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2answers
9k views
nRF24L01+ (RF24) radio with Arduino Micro
I purchased several nRF24L01+ (RF24) radios to use with my Arduino Uno and Micro.
Using the GettingStarted sketch and nRF24L01+ connected to my Uno, I get nice debugging info in my serial monitor. ...
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5answers
9k views
Arduino Pro Micro, get data out of Tx pin?
I have a Sparkfun Arduino Pro Micro with an ATmega32u4 on it and a Roving Networks RN32 Bluetooth Module
Theoretically, I should be able to solder the Rx of the Bluetooth to the Tx on the arduino and ...
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1answer
379 views
Arduino stopwatch, which board to use?
I am planning on making a simple stopwatch with:
A display
One or two additional buttons to start the stopwatch and stop the stopwatch and
maybe reset it.
The problem is that it has to be as ...
4
votes
1answer
3k views
Pressure transducer / sensor (0.5 - 4.5V) innacurate analog pin readings
I have a relatively cheap 0-15psi pressure transducer. It has 3 pins - ground 5V and signal. The signal outputs a voltage of 0.5V to 4.5V based on pressure from 0psi to 15psi. I can verify it does ...
