Quit eating sugar, it helps (see recipes for more knowledge). Check if taking zinc helps. Feel if avoiding dairy products has an effect on you.

- Write down and archive the stuff you do cleanly. No education and experiences means stillstand. Stillstand always degrades to less. Love and invest (esp.time and knowledge) into your children.
- Everybody sucks until they don't.
- Keep your curiosity. Act. Failures are an educational lesson and no soul burdon.
- Never be a prisoner of your past. It was just a lesson, not a life sentence.
- Always salvage the BMC of battery packs! You may still need them. Always label your components.
- “Use the Flux, Luke!” - Soldering SMD without flux is just wrong. Clean afterwards with isopropyl alcohol and toothbrush.
- Always ask questions - yourself too. If you found a solution, it is not the only one. Find more and/or keep refining. Change your angles. Be precise, sort your words first.
- Flush&Wash: Soap works, you know?! Don't gross out others.
- Always use flexible or PCB-wire on PCB pads. The leverage of thick rigid wire might rip the pad off.
- Always think before typing and/or pressing return. always read output like errors and warnings.
- RTFM: Read The Freaking Manual. Use the wiki pages. See –help or man pages. See for tutorials/guides/disasseblies. Read the technical comments/posts.
- Always search if there is a good answer before. Communities like the ones on reddit and expert forums are awesome, you get directed to the knowledge needed. There are even awesome Discord and/or Telegram communities.
- Be kind :) Life/Universe will give back what you seed. Music can influence your energy/mood/being - words too.
- remind yourself of Schulz-von-thun and 4Komminikationsmodell. ¿Questions can also say a message. Always feel into the other person. Tryout probable outcomes.
- Don't rely on AI, there might be better ways - don't be lazy. First and last part of conversation have higher weight. Learn about its function and token and probabilities and stuff.
- https://archive.org is your best friend. Google translate is awesome for translating non-english websites. Consider various sources like reddit, expert forums and even youtube videos. Ask ChatGPT et al. for starting points and pages you can read up on. Don't forget to check/validate your sources.
- to save some tutorials in a single html page that is portable and looks as original, use the following plugin: Save Page WE
- For translations dict.cc (and its mobile/pocket verions) for english, [leo.org] also for franko-languages. AI is good in translations and grammar correction too if you precise your questions.
- No backup? No pity. Ok, yes, but why do you make me feel it? Could have been different if acted before. Try to recover pictures/photos with this.
- Reduce, reuse, recycle: both in software and RL! Collect your garbage. You are responsible for what you get.
- Leftovers as takeaway.
- Quit smoking. If you stop smoking, don't litter env with tips of cigarettes. Get a portable ashtray.
- Improve on presentations: If you take 3 things to improve before and you succeed on 2 of them, you are way good!
- Everything done daily for 3 weeks becomes normality. Go by bike instead of car.
- Take 3 rule: If everybody takes 3-5 pieces of trash, the world is a cleaner place.
- Use rubber: don't surf the internet without blocking by uBlock origin for firefox.
- save the environment: if you must listen to music as yt-video, audiostream only with Music Mode for YouTube™
- for transporting bulky things in your car, just an old backplane of a cupboard to lay in trunk for sliding and protection.

Many 🛒links are from aliexpress (Q2-2025) and may be expired. Search yourself with the keywords.
🗒️ Note: I am not sponsored, I do not affiliate or try to do advertising even if providing links, nor encourage to buy anything. Always try to get official genuine tools and hardware to support the original developers.
Listed are tools/devices/gadgets I find useful and/or think are must-haves:

- Do not buy WiFi enabled SmartHome devices with vendor apps. Go for standards like Zigbee, Thread (Matter) or OSS versions.
- get yourself a router for openwrt or alike. no need for piHole, luci-adblocker is awesome. DIY projects with USB-audio,webstreaming,(hw)button executed scripting etc. Good experiences with ipq806x (USB3 and eSATA for NAS).
- get yourself an USB-OBD2 service cable for your car. See if ELM327 does the trick. - scalpel with removable blades. use the flat blades in various sizes without the “pen” as leveraging tool for opening cases/sockets or removing stuff.
- Pine64 Pinecil / TS100 USB-C soldering iron
- Solder sucker desoldering pump + Litze + Flux-Pen + isopropyl alcohol + Kapton-tape + PCB-wire
- fume extractor ventilation
- hot plate to preheat PCBs for SMD soldering (600W ~6€)
- RL-069 Kolophonium Zerstäuber Stift (~7€)
- 🛒tweezer set (10pcs ~5€)
- 🛒902 ESD SMD double soldering iron Pinzette Clip tip (modify plug for you soldering station) (~15€)
- 30x 40mm Magnifier / Magnifying Glass Lens (sold for Coins Stamps) (~4€)
- Swing Arm 2in1 Desk Lamp and Clamp with 10X Magnifying Glass (~20€)
- 🛒USB microscope with >=500x zoom (~11€)
- 🛒USB endoscope camera fixed (~3.5€)
- iR laser thermal sensor gun (~9€)
- flexible Octopus Arms Welding Table Clamps Bench (~6€+) (some versions have magnifying glass too)
- XY7025 PSU (~20€) / XY6020l with LCD to use with old laptop PSU
||| XY7025 70V/25A/1750W CNC Stabilized Voltage Power Supply Buck Converter CC CV Constant Voltage Constant Current Step-Down Module 🛒https://www.aliexpress.com/item/1005007980654262.html
- crocodile clamp cables to banana plug (2pcs ~1.5€) or to USB-A (~1.3€)
- 🛒battery spot welder (needs battery with enough juice, e.g. car battery)
- Hantek 6022BL PC USB Oszilloskope 20MHz (~60€)
- 🛒DC-022B 9K-3G PROBE EMC EMI Near Field Probe
- 🛒Multimeter Probe Tweezers for SMD Components Chip Test Clip (~2.5€)
- 🛒MemoryStick uSD-Card adapter (dual) [can be soldered to M2 slot too] (~2-3€)
- Laptop PSU adapter from/to USB-C PD (e.g. Lenovo ~2.5€)
- 🛒Multi-Functional Utility Triange Cross Switch Key for water plumbing, train, electric cabinet (Schaltschrankschlüssel)(~3€)(cut off to use on keychain)
- 50W plastic welding repair gun (~15€)
- diamond cutting blades for dremel rotary tool (aliexpress mix) (~3€)
- get good (ring) light for camera photo shoots
- FDM 3D-printer with PETG filament

- SDR DVB-T USB-stick for frequencies like 433MHz/868MHz RF
- cheap 🛒USB logic analyzer to use with pulseview (~5€): Best bucks ever spent!
- perfboards, various adapter breakout boards for SMD to DIP and for 🛒USB-C socket (also 6P with CC1). various connectors and plugs like QWIC and dupont cables with breadboard
- AMS1117 (3.3V) LDO board and level-shifter breakout boards
- LiPo charger breakout boards like MH-CD42 for IP5306-I2C(see here and heartbeat) (better than IP2312 or cheap TP4056?)
- 🛒USB Type-C QC AFC PD2.0 PD3.0 adapter with DIP switch (~1.6€)
- FTDI232 / CH340 or similar USB-TTL-Adapter
- 🛒ESP32-C6 mini dev board or 🛒ESP32-C6-DevKitM-1 with CH340 onboard
- 🛒ESP32 Thread Border Router / Zigbee Gateway BLE ESP32-S3-WROOM-1 with ESP32-H2-MINI-1 (~13€ dep. on ram/flash size)
- ESP32-CAM module or various OV2640 camera modules (different angles) (~5€)
- 🛒HDMI expansion board for PiPico (RP2040 / RP235x) (~3€)
- STM32-Nucleo board has ST-LINK/V2-1 programmer (virtual COM port for debugging and mass storage emulation for flashing) and can also be used with openOCD for other MCUs
- universal programming adapter for CH340 or for PICKIT ICD2

🔧 PICKit 2 (around 2005)
    ✅ Good for older 8-bit PICs (e.g., 16F, 18F)
    ❌ No support for newer chips (no support for newer PICs like PIC18F K-series)
    ❌ No support for MPLAB X IDE
    ✅ Has UART tool (basic serial debug)
    💡 Best for legacy/hobby use only
    
⚙️ PICKit 3 (around 2010)
    ✅ Supports most 8/16-bit PICs
    ✅ Works with MPLAB X IDE
    ✅ Faster and more powerful than PICKIT 2
    ✅ Supports newer protocols and higher voltages.
    ❌ Many bad clones are unstable, poor voltage regulation
    ❌ No UART tool
    💡 Okay for budget use—if you get a good clone

🛠️ PICKit 3.5 (enhanced clone)
    ✅ Same support as Pickit 3, but often with better components
    ✅ More stable VDD/VPP, some versions include external power supply option
    ✅ Proper buffering on ICSP lines
    ❌ No UART tool
    💡 Not an official Microchip product, improved clone, often faster than v3
    💡 Best value among clones — reliable for general use

🚀 Pickit 4 (official only)
    ✅ Supports all PICs, dsPICs, and newer MCUs (32-bit, AVR, SAM)
    ✅ Fastest programming, USB-C, SD card support
    ✅ Actively supported by MPLAB X and Microchip
    ❌ More expensive (~$50–$60)
    💡 Best for professional or long-term use

- Fahrradlader.de v3 to get 5V-USB from dynamo hub (~35€) [might even fit into your steer tube]
- (racing bike) handle bar end caps aluminium with screw (~1.5€) or 🛒rear-view mirror
- anti flat tire protection belt (2pcs ~2.5€)
- 🛒Garmin holder for ahead mount stem adapter (~3€) and its 🛒counterpart (~2€)
- matix leather grips (no ad, but I like them)
- ring bell (stylish) or steer tube mounted bells. Also see mini-bell on racing bike handle bar strips
- straps for regular pedals with hook-and-loop fastener (I also ride the backside with them) Cautious on injuries!
- reflective tubes for spokes