Mark J. Koch
@markjkoch.bsky.social
Retired Digital Alchemist. Cyber Monk. Technologist. Containment Specialist at -redacted-. Sun Microsystems Labs Alumni. Former SFX specialist at Blue Man Group. Hobbies: Game Design in Java/JavaFX, Analog Synth, PCB design, Robots, Gardening, Cooking.
A nice way to end the week! Got my #synth module working. Based on an open source design by Hagiwo. #RasPi #Pico2 based and using Arduino libraries, generates waves from tables or math. I added OLED and UI code. I think the PCB components need work as the output looks a little funky. #asmr-synth
October 4, 2025 at 1:20 AM
A nice way to end the week! Got my #synth module working. Based on an open source design by Hagiwo. #RasPi #Pico2 based and using Arduino libraries, generates waves from tables or math. I added OLED and UI code. I think the PCB components need work as the output looks a little funky. #asmr-synth
It's alive! Keypad/Display #PCB module for my #kim-1 replica is working! Mostly based on the original 1970s #schematic, using modern parts. I wrote a PCB test fixture using Arduino and #rp2040 #raspberrypipico module from #adafruit. My first time using a rp2040 was mostly painless. #65C02
August 28, 2025 at 9:20 PM
It's alive! Keypad/Display #PCB module for my #kim-1 replica is working! Mostly based on the original 1970s #schematic, using modern parts. I wrote a PCB test fixture using Arduino and #rp2040 #raspberrypipico module from #adafruit. My first time using a rp2040 was mostly painless. #65C02
Wrapping up my week by getting some good results from my current project. I got a #Adafruit Qualia #ESP32 dev board which is made for interfacing to the newer IPS LCD displays. It has a touch screen as well! Had to crash learn some #CircuitPython and was able to code a working GUI Widget set.
May 9, 2025 at 5:49 PM
Wrapping up my week by getting some good results from my current project. I got a #Adafruit Qualia #ESP32 dev board which is made for interfacing to the newer IPS LCD displays. It has a touch screen as well! Had to crash learn some #CircuitPython and was able to code a working GUI Widget set.
Took a break from #gamedev the last few weeks to get a hardware idea out of my head. These electronic flowers can be placed into a vase that has voltage wired into two layers that make contact with copper on the stems. #steam #electronics #techart #arduino Thank you to @oshpark.bsky.social
April 21, 2025 at 8:48 PM
Took a break from #gamedev the last few weeks to get a hardware idea out of my head. These electronic flowers can be placed into a vase that has voltage wired into two layers that make contact with copper on the stems. #steam #electronics #techart #arduino Thank you to @oshpark.bsky.social