Fingerprint Sensor (JM_101B) not uploading code
Hi, im trying to use a JM-101B fingerprint optic sensor. I downloaded the Adafruit fingerprint library and when I try to upload the enroll example onto my Arduino Nano board I get an error: "avrdude:...
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Issue reading more than 14 BMP280 sensors
Hi everyone, I'm working on reading data from 20 BMP280 sensors using a Redboard and 3 TCA9458A multiplexers. I know I could use 2 multiplexers by adjusting sensor adressess but I want to keep the...
View ArticleDFRobot Gravity TDS Sensor not working
Hello, I have a brand new TDS sensor from DFRobot, and I plugged it into my Arduino Mega as follows: TDS - to GND TDS + to 3V3 TDS A to A1 The DFRobot board lights up and the probe is attached...
View ArticleSolar radiation sensor SEM228A
Hello everyone, I am working on a project where I am trying to read solar radiation data using a SEM228 total solar radiation sensor. I am using an Arduino Uno and a MAX485 module for RS485...
View ArticleAnalog TDS and Turbidity Calibration
Could you help me to create program for my Analog TDS and Turbidity proper Calibration? 3 posts - 3 participants Read full topic
View ArticleRs485 moisture sensor
Hi, does anyone know what is inside a rs485 moisture and temperature sensor. Its the sensor with the three stainless steel probes. I want to make my own but not sure how to do it Thanks 3 posts - 3...
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Has the postman been through yet today?
I live in a cul-de-sac in a condominium complex, and all the mailboxes are at the entrance to the cul-de-sac. Here's a picture of the setup showing the back side where the postman stands: I want to...
View ArticleInterface AD1263 with Arduino/ESP32
Hiii everyone, I'm using ADS1263(32 bit adc) with arduino and got the count but it increases continously.....used ADS126X library 20 posts - 3 participants Read full topic
View ArticleThe sensor AHT3001 cannot be recognized by Arduino Uno
The temperature and humidity sensor's information can be found at AHT3001 Temperature and Humidity Sensor My circuit details: The pullup resistor for SDA & SCL is 4.7kΩ(I also tried 10 kΩ). The RC...
View ArticleUsing 2 VL53L0X ToF sensors with Arduino Uno
Hello, I am trying to use 2 Tof Sensors for my project , based on my research so far I have am addressing 2 Tof first one to x30 and x31. I want to get independent data from both , however the...
View ArticleKY-037/KY-038 or MAX9814?
I'm working on a bot what detects the loudest sound in its environment, uses FFT to take the pitch of the sound, like a musical note, and then use that information to control motors to make the bot...
View ArticleObject detection, blocking detection and calibration of up to 8 VL53L4CD...
I have developed a program for object detection, blocking detection and calibration of up to 8 VL53L4CD sensors. I am not a programming expert, but I hope that others can use my program or be inspired...
View ArticleHC-SR04 and 1027 3V Vibration Motor
Can somebody explain how can I connect a HC-SR04 sensor with a vibration motor 1027 3V? 4 posts - 2 participants Read full topic
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Arduino Nano Every AMG8833 Temperature Sensor Problem
Hello, I have a problem. I want to read the values from the AMG8833 temperature sensor. Unfortunately, when using the ready example called pixelstest.ino provided by the AMG8833 library, I get some...
View ArticleUltrasonic Sensor
AJ-SR04M How’s it going. I’m going to try and limit this for simplicity. I am a student studying EE. I have an UltraSonic Sensor connected using USB Serial Port CH340. I have tried to look for a...
View ArticleEDIT not BH1750: ML8511 Protecting it from weather
Hello everyone, I would like to protect my BH1750 sensor from weather influences. I’ve 3D-printed a case using transparent PLA, and for the light sensor, it works well. However, I believe it reduces...
View ArticleLooking for a distance Sensor
Hello, maybe someone can help me. I'm looking for a distance sensor. The sensor is supposed to send me distances between paving stones and a vehicle (size: like a lawnmower). It's about recognizing...
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RTD PT 100 ayuda
Hola que tal buenas tardes, necesito ayuda para calibrar un sensor RTD PT 100, necesito que me de una medida exacta en Arduino o raspberry en este caso usare un ARDUINO para capturar el voltaje, se...
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Rtd pt 100 help me pls
Hello, how are you, good afternoon, I need help to calibrate an RTD PT 100 sensor, I need you to give me an exact measurement on an Arduino or raspberry, in this case I will use an ARDUINO to capture...
View ArticleNEO-7M not working
I got a NEO-7M, and it won't give any results when I run it through the TinyGPS++ library. It keeps on saying that I need to "check wiring" even though I have already checked it. 2 posts - 2...
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