All Questions
120 questions
8votes
1answer
19kviews
How to use the water flow sensor with raspberry?
I'm trying to use this water flow sensor with raspberry: https://www.adafruit.com/products/828 I'm using this python code to read the pulses: #!/usr/bin/env python import RPi.GPIO as GPIO import ...
6votes
3answers
23kviews
How to use JSN-SR04T on a Raspberry Pi?
I want to try out JSN-SR04T, which is an ultrasonic distance measuring module, that is also supposedly water proof. The main reason that i want to try this module over the HC-SR04, is because the JSN-...
5votes
2answers
11kviews
How to Connect 6 ultrasonic sensors to a raspberry pi?
I need to connect 6 ultrasonic sensors to one raspberry pi and all six sensors should take the distance measurement same time. I have written the code and made the thread also but only two sensors ...
5votes
4answers
6kviews
Read data from Si7021 via I2C
I have an Si7012 temperature / humidity sensor attached to the i2c pins on my Raspberry Pi. Specifically, I have the Adafruit "break-out" with this sensor attached https://www.adafruit.com/product/...
- 1,375
5votes
2answers
738views
Building a Raspberry Pi network monitor. My code is not working
Long story short. I moved, put my home server is a closet and started worrying about temp and humidity, saw a guide online to make a network temperature and humidity monitor from a Raspberry Pi and an ...
5votes
4answers
5kviews
HC-SR04 randomly stops taking readings
I have implemented 3 HC-SR04 ultrasonic-distance sensors into my hobby-project, and they are working randomly, meaning they sometimes give me anywhere between 1-12 readings from the sensors and then ...
4votes
2answers
17kviews
How to trigger GPIO event using an active infrared sensor
Trying to get an active infrared sensor to trigger an event on a GPIO pin. I'm using python and the RPi.GPIO library on an RPi model B. Some background info, not sure how relevant it is, but I'm a ...
- 191
4votes
1answer
2kviews
My PIR sensor seems alittle keen to sense things
Before you tell me answers for my issue already exist I'd like to mention that I have checked previous answers and where similar issues have occurred I have tried to use their approved answer. So far ...
4votes
3answers
1kviews
Occasionally get "Register read error: 0xee06" when script is run with Adafruit BNO055
I'm running scripts on a Raspberry Pi 3 hooked up to an Adafruit BNO055 sensor, and occasionally when I run the test script I get this error: Traceback (most recent call last): File "...
3votes
1answer
3kviews
5v/12v power source/submersible water pump/RPI/relay. What kind of combination is suitable?
I am using a 12v DC water pump with a 20 l/min flow rate, a raspberry pi 3B and a distance sensor. I would like to use a relay and an external power supply to control turning on/off the water pump. so ...
- 55
3votes
2answers
8kviews
Smoke sensor MQ-135
Does Smoke sensor MQ-135 need to be connected to ADC if it has separate pin for analog and digital outputs? I'm about to interface it in raspberry pi.
- 43
3votes
2answers
7kviews
PIR Sensor Consistent False Positives
So, I'm trying to set up my raspberry pi to take input from a PIR sensor in order to automatically turn on a monitor when it detects motion. If no motion has been detected in 60 seconds, the monitor ...
- 133
3votes
3answers
14kviews
How can Rpi read the MAX30100 / MAX30102 Oximeter?
I want to connect the sensor max30100 to the Raspberry Pi board.I think everything is accurate.When I run the code, the red light flashes.I activated I2C.max30100 device address 0x57 is detected. When ...
3votes
2answers
6kviews
Using FSR with Raspberry Pi
I am trying to get values from a force sensitive resistor with Raspberry Pi. I saw an example using Arduino such as this http://learn.adafruit.com/force-sensitive-resistor-fsr/using-an-fsr and I can ...
- 401
3votes
1answer
600views
Any tutorials for the 10Dof DfRobot IMU? ADXL345 - HMC5883L - ITG-3205 - BMP085
I would like to connect this Imu to the Raspberry Pi via I2C. I am looking for a C/C++ or Python code to use the data provided by this imu. It integrates the ADXL345 accelerometer, HMC5883L ...
- 129
