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My pressure sensor reading results are wrong
MPS20N0040D Barometric Pressure sensor displays a negative number result even though the sensor has not been applied pressure. is there a problem in my code or is my sensor problematic. for the module...
View ArticleSonicsee project, that explains to the deaf what the lecturer is saying
#include <Wire.h> // Include the Wire library for I2C communication #include <LiquidCrystal_I2C.h> // Include LCD library #include <SoftwareSerial.h> // Include SoftwareSerial...
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HC-SR04 Ultrasonic Sensor Not Working When Connected to 5V Power Pin
Hello. Absolute Arduino newbie here. I'm making a miniature autonomous tunnel drilling machine project for uni which requires the use of an ultrasonic sensor. Prior to adding an ultrasonic sensor, I...
View ArticleInitialization of the optical flow sensor (pmw3901) failed
After connecting pmw3901 to Arduino Uno, running the bitcraze_pmw3901 flow example code will output as a "Initialization of the flow sensor failed" What's the solution to the problem? Connection...
View ArticleUltrasonic sensor jsn-sr04t with Arduino OPTA
Sorry, didnt realize i postet german in the english forums... here again: Hello everyone, I would like to use an ultrasonic sensor jsn-sr04t (V3) on an Arduino OPTA Lite to measure the distance of an...
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I need help with soil ph sensor and RS485
Hi, i am working on a final project of mine and im stuck on this soil pH sensor part that i have. The readings that is showing in my serial monitor are Soil pH: -614.7 Soil pH: -25.8 Soil pH: -0.7...
View ArticleAlternative to HuskyLens
Does anyone know any good alternatives to the HuskyLens? 4 posts - 2 participants Read full topic
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Inductive Proximity Switch/Limit Switch not working as expected with Arduino
Someone has posted something very similar before with the same proximity limit switch but i am still confused in regards to it in my context. I am using a 10-30V, PNP, NC proximity switch /limit...
View ArticleNarrow view angle Infrared Sensor
I am looking for an IR Receive sensor with a very narrow viewing angle. 36khz This could be something like the Vishay TSOP 34836 ( but it has 45 a degree view angle ) Can anyone help with finding such...
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MAX30100 sensor does not work
I soldered everything, connected everything correctly, but it still doesn’t work. #include <LiquidCrystal_I2C.h> #include <Wire.h> #include "MAX30100_PulseOximeter.h" #define...
View ArticleMy devices doesn't go online, but everything works
Hello, I am currently doing an activity using Arduino Uno Wifi Rev 2, and using DHT11. Whenever I upload on Arduino Cloud, It says it is done uploading, and the values is reflected on the Serial...
View ArticleDIY raw LiDAR, looking for the electrical signal
Hi, For an optimization problem we are trying to make a LiDAR which returns to us the raw electrical signal. We have tried to do this using a pre made LiDAR. However, we found that it does not return...
View ArticleDS18B20 Waterproof Sensor
Anybody else having problems with faulty DS18B20 waterproof sensors? A little while ago a purchased a 5 pack as part of a project I did, but they fail after about 3 months of usage under water. I...
View ArticleMax Speed of LiDAR on VL53L0X
Hello! I want to built LiDAR using VL53L0X, or some other IR ToF sensor, but I don't know what maximum rotation speed I can use. Can someone help me? 4 posts - 2 participants Read full topic
View ArticleFlow Meter at MCP23017
Hey there, the Code below is working at my nodemcu without using the MCP23017: #define SENSOR 8 long currentMillis = 0; long previousMillis = 0; int interval = 1000; //boolean ledState = LOW; float...
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Need Help with IR Remote Model Project
Hello everyone, I hope you're doing well. I'm currently working on a school project involving an IR remote model and need some assistance. The project aims to create a model IR remote control with...
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LIDAR scanner and Arduino board
Hello everyone, I am working on an interactive device project, by collecting the distance data from Lidar and transforming it into prompt to other software on Mac Os. Now I have trouble to get...
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IR receiver returns FFFFFFFF
So I have an IR remote control and an IR receiver, tsop1838 Both of these components were in the same Arduino kit so I suppose that there is no problem between their communication. I connected the...
View ArticleArduino Uno Programming
I'm attempting to use two slot sensors, in this case Fairchild to stop and start a motor. The motor is working without the sensors. They're wired correctly. Not sure what's wrong. Here is my code: int...
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Pin inputs giving the wrong result
Hello! When using Arduino & having an input on any pin, I don't get the result I want. I am doing a separate project involving push-buttons, and so I try and see when the Arduino detects that the...
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