Documentation images for the Kotokino Mark IV scanner
I was asked to provide more detailed images of the Kotokino Mark IV telecine machine, so I shot a dozen … More Documentation images for the Kotokino Mark IV scanner
All articles by Heikki Hietala
The Donald Duck hypnotizing machine with IoT
Note – the full code is available on my GitHub page, so I will only illustrate portions of it here. … More The Donald Duck hypnotizing machine with IoT
Using the UDP protocol with an ESP32 and Android Studio, Part 4
I gather that you have already seen part 1, part 2, and part 3, and are just as surprised as … More Using the UDP protocol with an ESP32 and Android Studio, Part 4
Using the UDP protocol with an ESP32 and Android Studio, Part 3
In the previous episodes of this trilogy, I showed you the general idea of using UDP (User Datagram Protocol) to … More Using the UDP protocol with an ESP32 and Android Studio, Part 3
Using 7 Segment LED displays, Part 4 – dual quadruple units
Okay, I thought the series on 7 segment LED displays would run into three parts, but it has turned out … More Using 7 Segment LED displays, Part 4 – dual quadruple units
Using 7 Segment LED displays, Part 3
This part concludes my foray into segmented LEDs. Part 1 showed you how to work with single digits, part 2 … More Using 7 Segment LED displays, Part 3
Using the UDP protocol with an ESP32 and Android Studio, Part 2
In the first episode of this three part saga, I gave you a basic overview of the workflow when working … More Using the UDP protocol with an ESP32 and Android Studio, Part 2
How to use the Heltec OLED display on the ESP32
Heltec is a Chinese company that makes all kinds of SoC (system on a chip) devices. Their ESP32-based SoCs appear … More How to use the Heltec OLED display on the ESP32
Using the UDP protocol with an ESP32 and Android Studio, Part 1
The ESP32 is a wonderfully versatile tool. As it has WLAN and Bluetooth on chip by default, as well as … More Using the UDP protocol with an ESP32 and Android Studio, Part 1
8mm film scanner Kotokino Mark IV
Okay. I sort of promised some time back that I won’t be publishing a new version of the 8mm scanner, … More 8mm film scanner Kotokino Mark IV