DS18B20 stopped working after several days running
Hi, I wonder why my DS18B20 sensor stops running after several day of operation. My sensor is attached to a Rocketcontroller R4G8 4 posts - 3 participants Read full topic
View ArticleESP32 xiao s3 v1.2 Seeed Studio TX and RX pins
Hi friends ! This board ESP32 xiao s3 v1.2 Seeedstudio is almost new in market and there are some troubles that i faced while i was first using it. I would like to leave this post to other people who...
View ArticleTrying to build usb handbrake - arduino micro
Hi there, completely new to Arduino's, trying to build a USB handbrake with this video:HOW TO MAKE A USB ANALOG HANDBRAKE | SIM RACING DIY EBRAKE but I can't seem to find where the library is to put...
View ArticleReading Voltage with a pro mini
Hello! Im trying to make a simple program that reads voltage and prints it to the serial monitor. I have a circuit where the ground connects to a 1.5V battery and the battery connects to port A3. I am...
View ArticleTurn of the Load connected via ACS712 using Realy
Hi All, newbie here, i have a basic question is this possible to turn of the load connected to ACS712 using a Relay? i am working on An project where i have to turn on and off the load connected via...
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Qdw90a 4mA-20mA two-wire winding Arduino connection method inquiry
안녕하세요 저는 한국에서 공부중인 대학생입니다. 다름이 아니라 저희가 압력계를 통해 압력을 실시간으로 측정하고, 이를 통해 압력을 제어하는 장치를 설계하고있는데 압력계와 아두이노를 연결하여 데이터를 받으려 해도 전압과 전류가 매우 낮게 나오는 현상이 발생하여 문의를 드리고자 합니다. 정확한 배선 또한 이쪽 전공이 아니다 보니 제대로 못한것같아 사진에 나온...
View ArticleDHT11 sensor accuracy
I am wondering about the accuracy of the DHT11 sensor. I have two of these, one supplied in a Joyit SensorKit X40 and one in a AZ-Deliver 16 in 1 Sensors Kit.. Both deliver different vaues with the...
View ArticleTTP223 Touch Sensors
Hi A little problem I encountered with the little red HW763(TTP223) modules from AliExpress. Bundle of 10. Tried one and could only get 30 mv output. Tried another and same result. After further...
View ArticleWhich would be a suitable sensor for Z axis probing
I have a laser cutter and want to add a sensor to the Z axis to determine the zero position of the material that I am cutting. I can't use a switch (that would be too easy) as the switch would have to...
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ADS1115 giving garbage values
I wanted to measure voltage with ADS1115 module. It is working perfectly on arduino uno (clone), but when I connect it to arduino pro mini (clone) it is giving one value on all channels (-101). I...
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ISM33DHX Calibration Issue
Hello, I'm currently working on a project that utilizes 2 of Sparkfun's SEN-19895 which includes 6DOF accelerometers (ISM330DHCX) paired with MMC5983MA magnetometers to determine the relative...
View ArticleWater detection 20m away from the Arduino
Hi, I searched both with google and here in the forum but haven’t found a solution yet. Hopefully you can help? My arduino is installed in a garden hut and shall activate a pump when water level in a...
View ArticleProblema con analogRead
Buenas tardes, tengo conectado un termistor a un pin analógico, uso analogRead para leer el sensor y este me devuelve un valor negativo, tengo entendido que el valor que tiene que devolver debe estar...
View ArticleVariaciones altas cuando utilizo la configuración de 4 Hx711 con pesos...
He calibrado de manera independiente cada sensor HSen-10245 con una pesa de 28 kg. Sin embargo, cuando peso un objeto de alrededor 100 kg, tengo una variación de 10 a 20 kg. La otra medición la hago...
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Problems with air pressure sensor and hx711 module (help required)
hey everyone. so I have been trying to make a breath controller with the MPS20N0040D pressure sensor. at first I tried to use LM358 op amp and had no success and everyone pointed out in another topic...
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2 Player game with toggle switch on arduino
hey guys, i want to make a 2 Player game where you can switch the players with a toggle switch. There are also 2 rows of LEDs one for Player 1 and one for player 2. I tried everything what I could...
View ArticleNeed help on adding TCS34725 Color sensor on a line tracking robot
Hey guys! I am new to this forum but was hoping on getting a bit of help/feedback on my code. I am currently working on a project for my robotics course, it is a line tracking robot with a ultrasonic...
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Arduino to Pi (Home Assistant)
Hey folks, I have scoured the internet for a solution and decided to create an account to ask you fine people! I have an Arduino Uno r3, I have wired 2x maxx6675 thermocouples to it. I coded the...
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Not sure if I need
First off let me apologize I am not very good at this and only just started and really I am trying to accomplish one goal. I am currently using 2 float switchs to send a signal to a relay to turn it...
View ArticleDetect if 230V AC is on
Hi I have an automatic pump system that sometimes runs longer than needed. My idea is to use a "sensor" that reads if 230V AC is on, connect it to an esp32 Wroom. If 230V AC runs longer than 120 sec,...
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