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# Hi! I'm Tim Huizinga
An Applied Physics student with a passion for programming!
I have always enjoyed programming as a hobby, and would love to make it my career.
Since then I have also combined this hobby with the hardware side of things.
Most recently I have picked up [Rust], and have fallen in love with this programming language.
Ever since I was young I have always been interested in technology, whether it was taking apart (broken) electronics or playing around on my parents computer.
In high school I discovered that I also really liked physics, so that is what I ended up studying, but programming always remained one of my hobbies.
A couple of years ago I picked up the programming language [Rust] and all my personal projects since have been build with it!
I'm also quite experienced with Linux as I have been daily driving it for the past decade at this point.
Making me very familiar with the terminal and the different command line tools available.
And have even been running my own Linux server at home for quite some time now!
I also discovered I enjoyed working with hardware during my minor in Electronics for Robotics and have since worked on a variety of hardware related projects at home as well.
One example would be adding bluetooth audio to my car, which included hacking into the CAN bus to integrate with the normally CD only steering wheel controls.
I'm also a big Linux fan and have run it as my main operating system for well over a decade at this point, I even game in a virtual machine so I technically never have to leave Linux!
This has since expanded to running my own Linux server at home and more recently tinkering with a bare metal Kubernetes cluster at home.
[Rust]: https://rust-lang.org
## Projects
### [Z80 Computer](https://git.huizinga.dev/Z80/Z80)
The first big hardware project that I worked on was building a computer, from the ground up, around the [Z80] microprocessor.
I had to learn a wide range of skills for this project, including things like learning how to design PCBs, programming in assembly, working with [FPGA]s, and learning to operate an oscilloscope.
[Z80]: https://en.wikipedia.org/wiki/Zilog_Z80
[FPGA]: https://en.wikipeida.org/wiki/Field-programmable_gate_array
### [Car Stereo](https://git.huizinga.dev/Dreaded_X/car-stereo)
My Peugeot 207 only has bluetooth for calling, so I decided it would be fun to build my own bluetooth receiver using the [ESP32] microcontroller.
The original goal was to just build an audio receiver and hook it up to the aux port in my glovebox.
However since then I have also connected the [ESP32] to the [CAN bus] of my car, allowing me to use the controls on my steering wheel to control the music.
[ESP32]: https://en.wikipedia.org/wiki/ESP32
[CAN bus]: https://en.wikipedia.org/wiki/CAN_bus
### [Home Automation](https://git.huizinga.dev/Dreaded_X/automation_rs)
I have slowly been converting my house into my very own smart home!
@@ -42,6 +29,30 @@ This was my first real Rust after picking up the language during [Advent of Code
[Rust]: https://rust-lang.org
[Advent of Code]: https://adventofcode.com/
### [Siranga (Greek for Tunnel)](https://git.huizinga.dev/Dreaded_X/siranga)
Sometimes you want to use your fancy new work-in-progress with someone remote, but how would you do this easily and securely?
That is where Siranga comes in, with this tool you can quickly create a new subdomain that connects to a local port on your machine, and all you need: SSH!
When connecting to Siranga over SSH it makes uses of the tunneling capabilities of SSH to forward one of your local ports to Siranga.
At the same time Siranga acts as a webserver and when a connection comes in for a given subdomain it will handle creating the connection through the SSH tunnel.
The authorized SSH keys for each user are retrieved through LDAP and the subdomains are (optionally) protected using ForwardAuth.
In my Kubernetes cluster LDAP is provided by LLDAP and ForwardAuth is provided by my single sign-on provider Authelia.
### [Z80 Computer](https://git.huizinga.dev/Z80/Z80)
The first big hardware project that I worked on was building a computer, from the ground up, around the [Z80] microprocessor.
I had to learn a wide range of skills for this project, including things like learning how to design PCBs, programming in assembly, working with [FPGA]s, and learning to operate an oscilloscope.
[Z80]: https://en.wikipedia.org/wiki/Zilog_Z80
[FPGA]: https://en.wikipeida.org/wiki/Field-programmable_gate_array
### [Car Stereo](https://git.huizinga.dev/Dreaded_X/car-stereo)
My Peugeot 207 only has bluetooth for calling, so I decided it would be fun to build my own bluetooth receiver using the [ESP32] microcontroller.
The original goal was to just build an audio receiver and hook it up to the aux port in my glovebox.
However since then I have also connected the [ESP32] to the [CAN bus] of my car, allowing me to use the controls on my steering wheel to control the music.
[ESP32]: https://en.wikipedia.org/wiki/ESP32
[CAN bus]: https://en.wikipedia.org/wiki/CAN_bus
### [Pico P1](https://git.huizinga.dev/Dreaded_X/pico_p1)
This is my most recent project, as I had recently decided to pick up a [Raspberry Pi Pico W] just to play around with.
I decided to build a device to read out my [DSMR5] based smart meter using it's P1 port and publish the information using [MQTT].
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[DSMR5]: https://www.netbeheernederland.nl/_upload/Files/Slimme_meter_15_a727fce1f1.pdf
[MQTT]: https://nl.wikipedia.org/wiki/MQTT
### [Inventory System](https://git.huizinga.dev/Dreaded_X/inventory)
As I got more into developing hardware my collection of electronic components also grew and I needed a better way of organizing everything.
I decided that it was a great opertunity to learn React and to develop the frontend of my very own simple inventory management system.
The system uses QR codes to link the physical components to their representation in the mangement system, which contains more information on the specific component like for example datasheets.
It also stores where each of the components is supposed to be stored, which makes it very easy to find components in the future.