All Questions
11 questions
0
votes
1
answer
100
views
Need help identifying components! Hardware
So recently I have come across a schematic diagram with pictures, but some of the parts in the build (A quadruped robot, more information in the hackaday link below) are not in the schematic, and I ...
0
votes
1
answer
147
views
Can I use WP(Write Protect) pin of a USB flash memory controller to prevent tampering with its firmware/stored data?
I want to have an USB stick that I can make it read-only and insert it in any untrusted PC without risking a silent BadUSB infection.
I was thinking about finding an USB stick that has this WP pin in ...
- 1
-5
votes
2
answers
244
views
Why do Nintendo 3DS games have 17 pins? [closed]
I took a good, hard look at one of my Nintendo 3DS games today, and I realized that there are actually 17 pins on the game that connect with the console. Why? I was under the impression that "...
- 109
41
votes
2
answers
105k
views
What's the difference between INPUT and INPUT_PULLUP?
On newer Arduinos, one can set pinMode to one of three states: OUTPUT,INPUT, and INPUT_PULLUP...
- 2,962
6
votes
1
answer
513
views
Problem stacking accelerometer and SD card shields on Arduino UNO
I have an ADXL345 accelerometer on a Makershield stacked on top of a Seeed SD card shield. Both of those are stacked on an Arduino UNO R2.
I've got each working individually, but when stacked they ...
16
votes
3
answers
34k
views
I burnt a pin. Now, what do I do?
I accidently shorted pins 10 and 11 with 10 set to output HIGH and 11 set to input. The pin 11 is not working. How do I figure out what component I burned?
Can the problem be fixed?
- 927
14
votes
1
answer
9k
views
Unlabeled Headers/Pins on Arduino Uno
Looking at my Arduino Uno, I noticed that not all of the pins/headers are labelled. I know what most of the pins do, but could not figure some of them (most not labelled at all, and one set labelled ...
- 1,291
11
votes
2
answers
5k
views
Working with a sensor and a motor, can I use both or should I use a motor shield?
Update: I'm currently changing a few things with the project. I took some of you advice. I've changed from a stepper motor to a RC servo (controlled through PWM) and if I run into any problems and can'...
- 143
15
votes
2
answers
13k
views
Pin 13: Do I need a Resistor?
This question mentioned that pin 13 has a built-in resistor for the LED that comes standard on most Arduino units. A friend of mine told me that because there's already a resistor on the pin, I don't ...
- 1,291
39
votes
5
answers
181k
views
Can I use the analog pins on the Arduino for my project as digital?
I am new to using Arduino, and I have an Arduino Uno. For the projects I've done, I've only used the digital pins.
I am building a small vehicle that uses stepper motors. I have run out of pins to ...
- 1,103
11
votes
2
answers
1k
views
Is there any difference between pin 13 and the rest of the pins?
Pin 13 has a surface mounted LED on it. Aside from the fact that it makes something light up, is there any non-negligible difference between this pin and a general digital pin?
For example, if I <...
- 2,962