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1500 questions
5
votes
3 answers
Is it possible to create a standalone exe which can burn the code into a Teensy 3.1?
So here's the scenario.
I have sent my teensy 3.1 circuit to a client of mine
And now I need to update the code burned onto teensy without providing client access to the code
So is it possible to create an exe or an installer of a kind which on…
newbie2015
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5
votes
1 answer
How do I convert code between Arduino platforms?
What documentation is available regarding the differences between the different Arduino platforms?
For example, I have some code written for an Arduino Teensy that I would like to run on an Arduino Mega.
Is there documentation on the capabilities…
Mark Harrison
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5
votes
4 answers
How to connect more than 10 sensors to Arduino uno r3
How I can connect more than 10 sensors to Arduino Uno R3? I calculated it and I can connect just 4 fire flame sensors (sensors which can find a fire (a candle, for example)) and maybe 1 ultrasonic sensor. I need more for my project. I need an IR…
Mr. Robot
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5
votes
4 answers
Is there any way I can turn off the 5V pin?
I'm trying to find a way I can toggle the 5V pin to turn on/off. I want the voltage to pass to another wire at a certain point. It should be off and then when something happens, the 5V should turn on.
How can I do this?
ninesalt
- 159
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- 1
- 2
5
votes
2 answers
Trouble with Timer 0
I'm taking my first wobbly steps outside the Arduino IDE and I'm not having much success with timers / interrupts. I can set a pin to output and light an LED with registers fine but I cannot for the life of me get it to blink using a timer. I have…
Ashlyn Black
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5
votes
2 answers
I²C with ATTiny85 at 8MHz using TinyWireM library
Hello fellow Arduino enthusiasts, I am trying to make the ATTiny85 talk I²C with a MMA7660 breakout board I have (it's an accelerometer, this is a follow up question to my previous one).
I would state in advance that the I²C chip works perfectly…
Omer
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5
votes
2 answers
Arduino power sources
Is it safe to connect a USB input to an Arduino (Nano) at the same time as an external regulated 5V supply to its 5V pin is connected, assuming the supplies have common grounds ? Will (I hope) the external 5V be used so as to not draw too much…
Robert Murphy
- 51
- 3
5
votes
2 answers
Read RC receiver channels using Interrupt instead of PulseIn
I am designing my own quadcopter control algorithm, whereby I currently read 4 RC receiver channels using PulseIn on each loop in the following manner:
ch1_raw = pulseIn(rcPin1, HIGH, 25000);
In other words, ch1_raw contains the length of a HIGH…
RLJ
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5
votes
1 answer
How to confirm a pin is fried
How do you confirm a pin has been damaged and is unable to work as a digital input?
I tried detecting a pushbutton (connecting ground to pin 11 with a pullup resistor enabled) on a fresh Arduino Uno and digitalRead() always registers 0, regardless…
Cerin
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5
votes
1 answer
HDMI EDID emulator
I am working on a project where i emulate the EDID of a screen to force a source into sending data on a certain resolution.
I read the original EDID code of a screen and change the timings into the resolution I want to force the source in, i send…
CedricGr
- 51
- 2
5
votes
6 answers
LCD 16*02 I2C shield only shows first character printed
I have an I2C LCD screen provided with a Sunfounder kit and certainly built by DFRobot or such a constructor (there is nothing written on the LCD), and an Arduino Uno R3 copy.
My issue is when I use lcd.print() to write a string on the LCD, only the…
AFract
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5
votes
2 answers
One workspace, two IDEs - Possible?
How can I create a workspace & projects so that either the Arduino IDE or the EclipseArduino IDE may be used to develop the project, interchangeably?
I have both IDEs installed and working but in separate workspaces.
I need:
One workspace that…
JRobert
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5
votes
3 answers
How do I create a 9 bit number based on values from 9 digital inputs?
I have 9 pins that are inputs from 9 IR LEDs. I want to combine all their results into one 9 bit number.
example:
pin1 = high,
pin2 = high,
pin3 = high,
pin4 = low,
pin5 = high,
pin6 = low,
pin7 = low,
pin8 = high,
pin9 = low
9 bit number =…
user3216081
- 51
- 1
5
votes
1 answer
Modbus Communication protocol for Arduino as Slave
I have an Arduino Uno board, with these components:
rs-485 Modbus module shield
Multiprotocol radio shield board for Arduino
In addition I have a level sensor which reads either 1 when it is above water, and 0 when it is below.
I need to be able…
lshas
- 151
- 5
5
votes
1 answer
ESP 8266 does not respond at all
I have a ESP8266_01, and I wired up. It does not work for me.
I have connected the ESP to an Arduino Uno. I am using a 5V pin from uP with a 3.3V regulator, and I have a voltage divider between RX(ESP) and TX(uP). And I am sure that the wiring is…
Chen
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