Today I will show a very simple ionization chamber that can detect radioactivity. I was able to detect with it ionizing radiation from a smoke detector (Am241 isotope). It’s also immune to electromagnetic interference (EMI) due to a good shielding. This device doesn’t explicitly use any power supply. It’s connected to a multimeter set to […]
Radioactivity detection using very simple ionization chamber Continue Reading
Today I am going to discuss how to make a very simple DIY Breathalyzer using Arduino UNO and few external components. Ana Carolina designed this project as an instructable in instructables.com. This is a low-cost project and a useful one too. If you have no idea about what breathalyzer is, let me explain briefly: A breathalyzer is a device
DIY Breathalyzer Using Arduino UNO Continue Reading
At last week’s IEEE International Electron Devices Meeting (IEDM) in San Francisco (USA), imec, the world-leading research and innovation hub in nano-electronics and digital technology and Holst Centre debuted a miniaturized sensor that simultaneously determines pH and chloride (Cl-)levels in fluid. This innovation is a must have for accurate long-term measurement of ion concentrations in
New Vital Signs Sensor module enables highly accurate, fast and convenient cuffless 24/7 blood pressure, heart-rate (HRM), heart-rate variability (HRV), and electrocardiograms (ECG) measurement New Vital Signs Sensor module enables highly accurate, fast and convenient cuffless 24/7 blood pressure, heart-rate (HRM), heart-rate variability (HRV), and electrocardiograms (ECG) measurement. The new module integrates all necessary hardware
AMS AS7024 VITAL SIGNS SENSOR MODULE Continue Reading
The objective of our project was to develop a wireless sensor device to be used for detecting motor vehicles, along with their direction of travel. The sensor is to be used in a larger system to monitor parking lot traffic by counting ins and outs of vehicles, thus showing which lots are full or not
Magnetometer Parking Sensor Continue Reading
Knowing the amount of alcohol you drunk is becoming easier using the iBreathe Breathalyzer project by Dave Clarke. You just have to blow in the alcohol sensor, then it pings the result to a smartphone app and to the cloud to document it as a table so you can see alcohol intake through time. This
iBreathe, A Breathalyzer Based on Hexiwear Continue Reading
This post is about how to use the BMP180 barometric sensor with the Arduino. It is also applicable for other similar barometric sensors. Introducing the BMP180 barometric sensor The BMP180 barometric sensor (model GY-68) is the one in the following figure (front and back view). It is a very small module with 1mm x 1.1mm (0.039in x
Introducing the BMP180 barometric sensor Continue Reading
Measurements from the real world often contain noise. Loosely speaking, noise is just the part of the signal you didn’t want. Maybe it comes from electrical noise: the random variations you see when calling analogRead on a sensor that should be stable. Noise also arises from real effects on the sensor. Vibration from the engine
Filtering Noisy Arduino Measurements Continue Reading
OurPCB is a multi-national PCB Manufacturing and PCB Assembly company, and today published a Guide on “Arduino Ultrasonic Sensor-A Complete Guide on HC-SR04”. It has five chapters that cover every detail about Arduino Ultrasonic Sensor. The publication is available on the https://www.ourpcb.com/arduino-ultrasonic-sensor.htmlsection of the company’s website for free. It is a simple guide authored by the OurPCB
OurPCB Released “Arduino Ultrasonic Sensor – Complete Guide to HC-SR04.” Continue Reading
Smart traffic control for more livable cities. Story Abstract Traffic light control hasn’t changed much in the last decades. Since IT changes everything, it’s time to transform the traditional traffic control systems to smart ones that adapt and react to their environment. The story I was experimenting with Walabot, trying to make something with cats,
Traffic Control with Walabot Continue Reading
