After checking out Soft Kinetic’s embedded 3D depth camera earlier this week, our attention was brought to a similar offering coming from Germany’s PMD Technologies and Infineon. In fact, we were lucky enough to be the first publication to check out their Cam Board Pico S, a smaller version of their Cam Board Pico 3D …
The Easy Pulse sensor is designed for hobby and educational applications to illustrate the principle of photoplethysmography (PPG) as a non-invasive optical technique for detecting cardio-vascular pulse wave from a fingertip. It uses an infrared light source to illuminate the finger on one side, and a photo detector placed on the other side measures the …
Easy Pulse kit: A DIY pulse sensor based on photoplethysmography Read More »
Two PCBs from earlier projects were used in this project: LoRa breakout board Sensor PCB with Si7013 humidity sensor from multisensor LoRa project … and particle sensor. Particle sensors could be cheap and easy to use. Disadvantage of lowest cost PM sensors is lack of “calibration”. The best method to measure particle content dispensed in …
ENC28J60 based Ethernet module. As you can see from the image above, the ENC28J60 module is very small. The PCB is more or less one-inch square which is almost as small as the included Ethernet jack. I decided to make a simple sensor webserver using the ENC28J60 that I got from EBay. I knew that …
Simple Sensor Webserver – ENC28J60 based ethernet module Read More »
A small team of researchers led by Peter Baltus, professor of microelectronics at the department of Electrical Engineering at Eindhoven Institute of Technology, the Netherlands, has developed small circuit boards equipped with sensors that can easily fit into a small golf-sized ball. While moving inside a pipeline, these swarm of smart marbles or balls can detect any obstacles, damages …
SMART MARBLES AND AI TO DETECT FLAWS IN PIPELINES Read More »
In this post, we will discuss How-to-Build-Your-Own-Anemometer-Using-Reed-Switches-Hall-Effect-Sensor-and-Some-Scraps-on-Nodemcu-Part-2-Software: This is the sequel to the first post “How to Build Your Own Anemometer Using Reed Switches, Hall Effect Sensor and Some Scraps on Nodemcu – Part 1 – Hardware“ – where I show how to assemble the wind speed and direction measurement devices. Here we will exploit …
