Barometer Logger – Adding Air quality sensor
My next goal is to add an air quality sensor to the Barometer Logger. Here in Seoul, air pollution is a serious problem. Air...
Barometer Logger – Making a case
For the past several weeks, I was working on 3D CAD software and a 3D printer to make a case for the sensor. Among...
Barometer Logger – Day 4
Worked on air pressure plot and email notification.It is important to visualize the value changes since I need to figure out what kind of...
Barometer Logger – Day 3
Today’s goal was to make WiFi work.First I tried sample code on WiFi Usage on Seeed Studio. Scanning access points and connecting to a...
Barometer Logger – Day 2
After completing the LED blinker, the “Hello world” for micro controller projects, the next thing is just going straight to the barometer sensor.I first...
Barometer Logger – Day 1
There are several reasons I could have headache – I mean the real, physical headache – for example, just before catching a cold, or...
gluplot – a glucose level plot app with annotations
I had a Freestyle Libre sensor, a CGM (Continuous Glucose Monitoring) useful for diabetic or pre-diabetic patients, which allows you to measure your glucose...
C++ Implementation of Elliptic Curve
In my previous post, I implemented basic finite field and elliptic curve math and confirmed the public key generated in my code matches with...
WordPress glitches
Recently, I had trouble with updating on this site – WordPress doesn’t allow me to update any changes. Pressing “Update” button takes just long...
Understanding Elliptic Curve Cryptography
It’s getting tough but you can not avoid this modern cryptography technology called elliptic curve cryptography (ECC). The basic expression looks as simple as...