The analog-sampling tag has no usage guidance.
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1answer
29 views
how do you capture the top value in a fallen edge in analogs data (flex sensor)
Guys i'm working with a flex sensor and I'm trying to capture a specific value which is the moment before the user lets go of a flexed flex sensor and its represented as the top point of a falling ...
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1answer
27 views
How to interpret analog values sent to Arduino from line scanner?
So I have a line scan camera attached to my Arduino Mega and I'm trying to send it a digital clock impulse and get an analog output back. The line scan camera is supposed to return 128 pixels.
So far ...
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1answer
20 views
Digital input pin voltage treshold (voltage to register 1 or 0)
I was thinking of using multiple analog light sensors (variable resistance by light), but basically I only need to know if there is "a lot of light" or "not a lot of light". And would like to use ...
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1answer
30 views
Sampling Rate of Arduino Uno
It might be a stupid question but, I am currently using Arduino Uno with the 16MHz processor, what is maximum sampling rate of data available to me if I want to read data of a sensors such as ...
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0answers
17 views
Can I get faster than 33 ksamples/second for A/D on my Netduino Plus 2?
I have a Netduino Plus 2. It looks like if I write a loop doing nothing but sampling one A/D pin 100,000 times, then reporting to the PC via debug statement, I get one report every three seconds or ...
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1answer
79 views
Help with a rather specific implementation of FFT Library?
So, I guess what I'm trying to do here is properly understand the FFT library posted here by Open Music Labs, done in C++. I believe I understand the Fourier transform, but the FFT has some nuance ...
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3answers
58 views
Integration of signal
In my house, I have a low voltage AC signal (0-10V) that is proportional to the amount of current that is drawn at any moment (or as it is presented: kW) (europe, 50Hz). Presently, it is just shown as ...
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1answer
29 views
Analogue input 0 staying at 0 when sensing light with Arduino and a photocell
I am doing a circuit for capturing light intensities.
I followed the tutorial provided by Adil Moujahid
Yet, when I plug the jumper wires on 5V the circuit stops working and when I plug on 3.3V the ...
3
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1answer
339 views
Arduino Due: Interrupt-based ADC hangs processing
I am trying to build an oscilloscope using an Arduino Due and an LCD. I have the LCD running perfectly and started working on using the ADC peripheral to sample signals. Here's what I have so far:
...
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2answers
996 views
Connect HX711 to a three wire load cell
I have the following load cells:
I'm using the following HX711 amplifier
Every guide i can find on the internet describes how to connect a load cell with four wires to the amplifier. How can i ...
0
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1answer
188 views
Getting values from multiple thermistors - one value glitches all over the place
I have a circuit with preferably long wires that get data from thermistors. The Arduino sends this data (formatted in JSON) to a web server where it can be collected by another program.
Some of ...
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1answer
73 views
Arduino Uno - Analog Circuit Simulator
I control an analog circuit with Arduino Uno. I want to simulate an Arduino Uno with operational amplifiers (741). Can I simulate Arduino with SPICE?
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198 views
Arduino Micro + Max4466 - Noise on A0
I've got an Arduino Micro, and a MAX4466 ECM / AMP breakout board (https://www.adafruit.com/product/1063). I'm powering the Arduino Micro from the USB port.
On the MAX4466 (to the Arduino), I've ...
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3answers
254 views
Can do I make an Arduino program that can decipher telephone touch tones?
I have an old land line phone that I want to connect to my Arduino. Then I would like to write a program that can decipher the touch-tone button presses (which are a combination of two tones) so that ...
-1
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1answer
135 views
0-1 V input to 0-5 V Output
We have an instrument that has analog output of 0-1 volts and we need to convert this to 0-5 volts. What is the best op amp to use for this and how should the resistors be set up? Any help would be ...
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1answer
46 views
Arduino AD-converter tolerance
I created a quite simple Arduino sketch:
void setup() {
Serial.begin(9600);
}
void loop() {
int sensorValue = analogRead(A0);
Serial.println(sensorValue);
float voltage = sensorValue * (5 ...
