Use this tag for questions about selecting, connecting, using, and debugging sensors.
-3
votes
0answers
23 views
Very simple car monitoring system [on hold]
I want to build a car monitoring system for my 1975 Series 3 land rover. They obviously had no ECU'etc. It's just mechanical sensors that give out voltage differences and that moves the needles up and ...
-4
votes
0answers
28 views
Determining the speed of an object passing through two infrared sensors [on hold]
This is my first Arduino project. I want to calculate the speed of an object passing through two infrared sensors and display it on a LCD screen.
My approach is that when an object passes through the ...
-2
votes
1answer
32 views
How to turn on Solenoid based on Soil Moisture value?
I am powering solenoid with 24 volt as required however I am using TIP122
transistor that has base connected to Arduino Digital Pin 6 via a 1K Resistor.
And the collector is connected to negative ...
-1
votes
0answers
10 views
seat belt monitoring and reporting system [on hold]
I want to undertake a project. It will monitor and report seat belt status of a vehicle to remote control room. How can i use arduino uno, gsm sim 900 and gps shield and sensors to complete it
0
votes
0answers
7 views
How to decide voltage divider values? [migrated]
I am building a simple voltmeter circuit that needs to measure up to about 35 volts. Looking around the web I am finding all sorts of suggestions for voltage divider values, like 1 Mohm / 10 Kohm, ...
1
vote
1answer
51 views
Motor Control Help
Here is my objective:
If the value of EMGv is at or above 900, start moving the motors left. The motors should continue to move left for a maximum of one second, provided EMGv stays at or above 900. ...
1
vote
0answers
14 views
How to use Honeywell NBP Series Sensor with Arduino
I am trying to use HONEYWELL NBPDANN100PAUNV Pressure Sensor.
I found a example here http://www.circuitstoday.com/interfacing-pressure-sensor-arduino
As this example says as instrumentation ...
1
vote
2answers
43 views
What is an easy way to power a 3.3v BMP-180 barometer board from a 5v Arduino Nano?
Scenario:
I have a functioning weather station (temp/humid, MQ-2 smoke sensor, anemometer), and want to add a barometer. The weather station is outside, linked to my inside display and RTC by the ...
0
votes
1answer
20 views
connecting lv maxsonar ez arduino
I am not 100% sure this question relevant here , but question is I have lv maxsonar ez which need 5v. I am powering my uno with 9v battery. And I have few other sensors also connected to 3.3v. But I ...
1
vote
0answers
21 views
DHT22 reading weird values
I just hooked up a DHT22 I had laying around in a parts drawer to test something and it is giving out some crazy wrong values, I am running the adafruit library's unified example and this is the ...
0
votes
1answer
35 views
SPI Overflow in 328 slave with i2c sensor
I am working on creating sensor poller that is going to be polling multiple sensors and then, on request, provides its data to the master.
The master polls the slave (SPI) at 50hz and the slave is ...
0
votes
1answer
22 views
Arduino ov5642 camera yuv422 output
Currently, I'm implementing arduino camera ov5642.
But especially, I can't understand the camera output at yuv422.
that spec wrote as yuv420 output sequence YYYY.../YUYV...
Actually, I don't ...
2
votes
0answers
40 views
Faster output of Serial.print() data coming from TSL1402R sensor [closed]
I am reading a TSL1402R with an Arduino Mega2560. The code is based on the sketch from the arduino playground here:http://playground.arduino.cc/Main/TSL1402R
The application is a digital caliper for ...
1
vote
2answers
50 views
The easiest and most time efficent way to connect to the internet regardless of the cost
I am working on my graduation Project. I want to use the cayenne (mydevices) platform to control my Arduino. Mainly I want to be able to control a servo Motor through the Cayenne app and I want to use ...
0
votes
0answers
14 views
How to connect Omron D6T thermosensor with vibrating device?
I connected an Omron D6T Thermosensor to an arduino and used the code below:
How would I incorporate a vibrating device? I am new to using the arduino and also programming so I have no idea where to ...
0
votes
0answers
23 views
Trying to graphically display thermosensor output from Arduino to processor?
I have the code below:
But it has an issue with this line: 'font = loadFont("FZLTZHB--B51-0-48.vlw");'
It gives me the error: Could not load font. Make sure the font is in data folder.
But I am not ...
1
vote
2answers
34 views
How can I deal with rapid fluctuation of Anemometer readings?
In my little weather station I collect temperature, humidity, MQ-2 smoke sensor, and wind speed readings for display on a 20x4 LCD display, every 500 ms.
The Anemometer readings jump up and down by ...
3
votes
2answers
46 views
Record Ping time using ultrasonic sensors and calculate speed
I'm trying to find the speed of remote control toy car passing by two ultrasonic sensors. I need help on my code and suggestion on max speed car should go to record time. Opposite direction not ...
1
vote
1answer
29 views
how to measure level shock using vibration sensor and arduino
My project title is about crash detection, by using this kind of vibration sensor. When the sensor reads the shock (which is when I knock the sensor) more than 50, it assumes it's a crash and will ...
1
vote
2answers
23 views
Thermosensor Error - 'Wire' does not name type?
Here is the code I am using:
#define D6T_ID 0x0A
#define D6T_CMD 0x4C
int ReadBuffer[35];
float ptat;
float tdata[16];
#include <Wire.h>
void setup() {
Wire.begin();
Serial.begin(9600);
...
0
votes
0answers
26 views
how do I measure Watts without a CT clamp?
I'm trying to build a "iot" project for home that will in effect create a smartplug. I'd like to add the capability to measure the watt usage of the plug (and whatever's connected to it). I'd like ...
2
votes
4answers
113 views
How to track revolution of DC motor?
I am currently trying to build a line follower robot that is designed to solve maze. This maze has a loop, thus it needs to know distance it already travelling (or at least I assume so, please let me ...
4
votes
3answers
63 views
Mini Voice Recorder for Arduino
I am trying to find a small voice recorder that I can use with my Arduino Micro, and I found this. It is exactly what I am looking for, but it is now a retired product. I googled ISD1932, but many ...
0
votes
1answer
41 views
Sending digital signal from one arduino to another
I have one arduino with two proximity sensors that send two digitalWrite signals if an object is detected. I checked to make sure the output of these is working properly and only sending high signals ...
3
votes
2answers
92 views
The use of 4.7kOhm resistor with DS18B20 temperature sensor [closed]
I was using a temperature sensor DS18B20 with Arduino.
I've read that you should connect the digital input line and the 5V line with a 4.7kOhm resistor - like in the picture.
Can someone explain ...
-2
votes
2answers
53 views
Do I use an Arduino or an ARM based Launchpad board for my commercial project? [closed]
I want to use a board for an Industrial Project, which is based on temperature sensing, sharing and data storage.
Which board do I use?
Will it be reliable for a long span of time?
Will it be ...
0
votes
2answers
36 views
Print when echo is read by HR-S04 sensor
I'm trying to see when an echo is received by my HR-S04 sensor. I have a Serial.println within my while loop to read the signal and see once a change happens to break the loop.
The issue is my serial ...
-1
votes
2answers
53 views
Is it possible to detect stairs using ultrasonic sensor? [closed]
Can anyone give suggestion. I am working on project that helps visually impaired people to detect obstacle/stair..... so the thing that I want to ask, is it possible to detect stairs or pit using ...
0
votes
0answers
22 views
Program hangs at am2315.begin() - ideas?
In working with the AM2315 temperature/humidity sensor, my program hangs at the am2315.begin(); line.
The only output I get is "Serial on"
Here is the code:
#include "cactus_io_AM2315.h"
AM2315 ...
-2
votes
0answers
10 views
Analog Residual Chlorine Sensor interfaced in Arduino
Im having a hard time finding a sensor for residual chlorine. I have tried ebay and amazon. What other sites that is popular for buying sensors.
1
vote
3answers
54 views
Arduino weather vane
My little weather station is run on a Nano and has the anemometer and the temp/humidity sensor. A smoke detector is on the way because I live where wildfire is a big concern.
I would like to build ...
-3
votes
2answers
46 views
getting error while trying to compile code for soil moisture sensor
I think the below logic should work but its throwing error
void setup() {
Serial.begin(9600);
}
void loop() {
int soil_moisture = analogRead(A0); // read from analog pin A3
// int soil_moisture ...
3
votes
1answer
30 views
Can LilyPad Main Board interface with a sensor via UART?
Is the LilyPad Arduino Main Board physically capable of interfacing with, let's say, a LeddarTech LeddarOne Optical Rangefinder, which has a 3.3v UART interface? I understand that the LilyPad has a ...
0
votes
0answers
29 views
Read Data From USB Device (Laser Range Finder Sensor) Using Arduino Due
I currently have a LIDAR sensor which has USB interface. The sensor works just fine using USB connection and the provided software. Now I want to connect it to the Arduino Due so that the ardunio can ...
0
votes
2answers
36 views
Using ps2 mouse (PAW3402 / PAW3412) as a distance sensor for arduino
I am working on a project where I need to calculate distance traveled by a robot. The mouse is connected to the arduino uno processor and I received some sample code from the arduino website to get ...
-1
votes
1answer
47 views
Issue with photoresistor - the analogRead stays pretty much the same?
UPDATE: If I could I'd downvote myself. I'm a web developer and as I see that my job will be eaten, I'm trying to expand my skill set. Sometimes I wish I had a second pair of eyes or https://en....
-4
votes
1answer
43 views
Sensor for detect there is a car or not ?
please I'm aiming to do a project for parking system but first of thing I need a sensor to detect there is a car or not other than ultrasonic sensor ..
please any one know any kind of those sensors ? ...
0
votes
2answers
71 views
Multiple I2C BREAKOUTS with pull-up resistors doesn't work [UPDATE]
[UPDATE] Now it works fine but the as soon as I add the GY-521 module (hardware not software), it starts sending me crapy info
Project uses:
Arduino Pro Mini as brain
FTDI as a programmer
GY-521 ...
0
votes
3answers
68 views
Which sensor to detect light?
I have a kit of 37 sensors as described here:
http://www.instructables.com/id/Arduino-37-in-1-Sensors-Kit-Explained/?ALLSTEPS
https://tkkrlab.nl/wiki/Arduino_37_sensors
I want to create a simple ...
0
votes
2answers
75 views
What sensor would work for soccer ball detection efficiently using Arduino?
I want to make a soccer goal counter using Arduino and some sensors. I built using an ultrasonic sensor, but it does not detect if the ball is moving too fast. Are there any other sensors I can use to ...
1
vote
1answer
27 views
How do I use two PulseIn() functions simultaneously in Arduino?
I want to connect multiple Ultrasonic sensors to my Arduino board. For that, I need multiple pulseIn() functions to work at the same time. How can I do that?
2
votes
2answers
90 views
Read speed between two ultrasonic sensors
I'm new to Ardunio and in need of help for this small project.
I'm trying to build an Ardunio code that reads the speed of an object passing through two ultrasonic sensors. The plan now is to ping ...
1
vote
1answer
39 views
Results for GP2Y1010AU0F Dust Sensor
I am using Dust Sensor GP2Y1010AU0F
I downloaded the code from the manufacturer here:
http://www.waveshare.com/wiki/Dust_Sensor
/**********************************************************************...
1
vote
0answers
32 views
How to find gain for this device
I am doing a project with Arduino to find CO2 in an environment. For the purpose, I bought a break-out-board with an MG811 sensor on it. I bought it from eBay and it came with no datasheet. I searched ...
1
vote
1answer
65 views
Receive data from multiple wireless sensors simultaneously
I want to receive data from multiple (2/3) wireless sensors at the 512 Hz data rate simultaneously at a single receiver (bluetooth or any other wireless standard). Is it possible or need I multiple ...
1
vote
1answer
24 views
Arduino Due: multiple TCS sensors
I am trying to run 2 TCS3200’s from one Arduino Due. Next, I must increase to 4 sensors. I need to read the data from the 2 digital pins but how do I read both within the same loop rather than in ...
0
votes
1answer
63 views
Sensors to measure wrist bending
I'm working on gesture gloves project, which means it detect hand movement or current position, to be used in something else such as controlling a car.
I wanted to measure how much the wrist joint is ...
3
votes
2answers
120 views
Water level Detection using Ultrasonic Sensor and arduino
I'm making a water level detector to control my motor which supplies water in water tank and for that I'm going to use ultrasonic sensor to be attached to tank lid. My question is whether the vapor ...
0
votes
1answer
23 views
Problems with Ultrasonic Sensor
I want to check my understanding on how to use digitalWrite for 5V and Grd and why this code isn't working.
This is for the Makeblock sensor
Consider the image here which says to plugin a wire to 5V,...
0
votes
1answer
34 views
Use an electromagnet for reading induction aswell
I have an electromagnet that I wish to use to pull a neodyne magnet closer.
I'm thinking of having the electromagnet sensing when the magnet is close, but when the magnet is running I'm pushing 12 ...
