Month: April 2022

BMP280, ESP32 development board, Internet of Things (IoT), IoT web interface, LCD display, PHP

GPS-equipped portable atmospheric recorder, with LCD and map display

By Heikki Hietala

NOTE – all code you see here is in better, complete form at my GitHub page. As I have returned … More GPS-equipped portable atmospheric recorder, with LCD and map display →

3D printing, e-paper, ESP32 development board, Spotify API

Spotify song display with ESP32 and e-paper display

By Heikki Hietala

One day, entirely without active pleading on my part, I was handed an Amazon Echo Dot device. I wasn’t aware … More Spotify song display with ESP32 and e-paper display →

accelerometer, Adafruit OLED, ESP32 development board

Time Management Cube

By Heikki Hietala

So, this academic year is already well down the road, and I haven’t blogged in a while. To make up … More Time Management Cube →