• Anki
• Notion
• Rome Research
• Obsidian
• RemNote

• Doppelt verlinkte Notizen

Soldering Iron

eDesign / Miniware

eDesign / Miniware TS100
eDesign / Miniware TS101
eDesign / Miniware TS80P
Pine64 Pinecil

FNIRSI

FNIRSI HS-02

QUECOO

QUECOO T85

ALIENTEK

ALIENTEK T90

Tips

eDesign / Miniware

TS100/TS101 Series Soldering Iron Tips
Nine modles: TS-B2 / BC2 / C4 / D24 / K / KU / I / ILS / C1

245 Series Soldering Iron Tips
Three modles: BC2, K, D24

210 Series Soldering Iron Tips
Three modles: KU, I, IS

FNIRSI HS-02

QUECOO T85

ALIENTEK T90

Eleshop

USB-C Soldering Iron

Which USB C Soldering Iron is the Best for 2025? Pinecil vs Fnirsi vs TS101

Soldering Iron Tips

Which JBC tip do you need? C470 C245 C210 or C115?

Spiderman Cake Topper
minions cake topper
Pikachu – Zápich do dortu (Pikachu Cake Topper)
Groot – Zápich do dortu (Groot Cake Topper)
Bluey & Bingo – Zápich do dortu (Bluey & Bingo Cake Topper)
Malá mořská víla – Ariel a Šupinka (The Little Mermaid – Ariel & Flounder) – Zápichy do dortů / Cake Toppers
Sonic the Hedgehog Cake Topper (NO AMS-Multipart)
Hot Wheels cake topper
Harry Potter – Zápich do dortu (Harry Potter Cake Topper)
Cake topper with tractor and name – Jamie
Dirty dancing cake topper
“Davin is a Fast ONE” – cake topper
Breakdance Silhouette Cake Topper
Minie Topper Cake
Lion Topper Cake
Koala Topper Cake
Jednorožec s duhou (Unicorn & Rainbow) – Zápichy do dortů / Cake Toppers
Tlapková Patrola (PAW Patrol – Zuma and Marshall) – Zápichy do dortů / Cake Toppers
Baby Shark – Zápichy do dortu (Baby Shark Cake Toppers)
Hasiči – Zápichy do dortu (Firefighter Cake Toppers)
Bing & Flop – Zápichy do dortů (Bing & Flop Cake Toppers)
Dopravní značky – Zápichy do dortu (Traffic Sign Cake Toppers)
Hulk – zápich do dortu / Cake Toppers
Star Wars – Han Solo & Leia – Zápichy do dortů (Star Wars Han Solo & Leia Cake Toppers)

Golden Spiced Latte

• Adansonia digitata (Afrikanischer Affenbrotbaum, baobab)
• Curcuma longa (Kurkuma)
• Cinnamomum verum (Ceylon-Zimtbaum)
• Piper nigrum (Pfeffer)
• Zingiber officinale (Ingwer)

Roo – Semi Enclosed Three Wheeled Electric Tilting Vehicle

Timer PWM with DMA stops too early on STM32G431

Pinout & Configuration

Unused Pins

The unused I/O pins should be configured as analog input by software; they should also be connected to a fixed logic level 0 or 1 by an external or internal pull-up or pull-down.
Recommended course of action for Unused pin of STM32 MCU
Pin value of a GPIO pin set as high impedance
GPIO outputs are in high-impedance state

HAL

HAL_Delay

Because it’s an “at-least-N-ms” delay with 1ms granularity.
HAL_Delay works and doesn’t work
Is HAL_Delay(1) quaranteed to be close to 1ms?
HAL_Delay(1); takes 2ms

Timer + DMA

Hands-on with STM32 Timers

PWM

It takes 2 mins to generate PWM signal in STM32
STM32 Guide #3: PWM + Timers

PWM + DMA on G431

STM32 LESSON #5: TMER (PWM + DMA)
Confusion about length parameter in HAL_TIM_PWM_Start_DMA

• On STM32F4 the length seems to be with respect to Data Width in the timers DMA setting
• on STM32U575 it seems to be measured in bytes (regardless of the GPDMA settings)

WS2812

Interface WS2812 with STM32
github.com/MaJerle/stm32-ws2811-ws2812-ws2812b-ws281x-tim-pwm-dma-timer
Improved STM32 WS2812B DMA library
Tutorial: Adafruit WS2812B NeoPixels with the Freescale FRDM-K64F Board – Part 5: DMA

SPI (no DMA)

WS2812

WS2812 LEDs using SPI

STM32G0 Boot0 und SWCLK selber Pin
STM32G030 BOOT0 versus SWD
STM32G030 BOOT0 pin – SWCLK
STM32G0 Series Workaround for BOOT0-Pin Problem #82

ST

AN5096 – Application note – Getting started with STM32G0 Series hardware development (PDF)

RM0454 – Reference manual – STM32G0x0 advanced Arm-based 32-bit MCUs (PDF)

• Reference design
• PA14 is shared with BOOT0 functionality. Caution is required as the debugging device can manipulate BOOT0 pin value.
• The debug pins are in AF pull-up/pull-down after reset:
• PA14: SWCLK in pull-down
• PA13: SWDIO in pull-up

• Glass Tube Fuse
• Thermostat Fuse
• PPTC Fuse

• Resettable
• Recoverable Fuse
• Self-Recoverable Fuse
• MultiFuse
• PolyFuse
• PolySwitch

PPTC = Polymeric Positive Temperature Coefficient Device

Temperature => Resistance

PTC = Positive Temperature Coefficient Device
NTC = NegativeTemperature Coefficient Device

Parameters

• V_max
• I_max
• I_hold => continuously, will never trip
• I_trip => activate

AliExpress

PPTC Self-Recovery Fuses, 250V
PPTC Resettable Fuse, 250V, TRF250-500

YouTube

The Best Protection for your Circuit is NOT a Fuse!…..but a Resettable Fuse? EB#54
The Best Protection for your Circuits? eFuse! Here is why they are awesome! EB#48

ZOYI

• ZOYI ZT-MD1
• ZOYI ZT-DQ01
• ZOYI ZT-DQ02

ANENG

• ANENG SZ305
• ANENG GN701

Aka SMPS Switched Mode Power Supply

SM7035P

SM7035P Sunmoon

NCP1010

NCP1010: Self-Supplied Monolithic Switcher for Low StandbyPower Offline SMPS (PDF)

Tutorials

Flyback vs. Buck: Which to Use for DC/DC Conversion?
Instructable: DIY Buck/Boost Converter (Flyback)

element14

• site:community.element14.com A Noise-Free DIY Switching Power Supply
• site:community.element14.com Isolated DC/DC Converters

elements14: A Noise-Free DIY Switching Power Supply – How Hard Can It Be? — Episode 542
DC Power: DC-to-DC Converters

YouTube

How Buck, Boost & Buck-Boost DC-DC Converters Work
How does a modern Power Supply work?! (230V AC to 5/12V DC) DIY Flyback Converter!
Every Component of a Switch Mode Power Supply Explained
Every Component of a Linear Power Supply Explained (while building one)
Understanding Switching Mode Power Supplies
A Noise-Free DIY Switching Power Supply – How Hard Can It Be?
How SMPS works | What Components We Need? Switched Mode Power Supply
#772 Basics: Switching Power Supplies (part 1 of 2)
Howto repair switch mode power supplies #1: basics, and block diagram of a PSU
Switching Regulator PCB Design – Phil’s Lab #60

AI

The SM7035P is an adjustable step-down DC-DC converter. It works by converting a DC input voltage to a lower, adjustable DC output voltage, typically between 3.3V and 18V. This conversion is achieved through a series of switching actions within the converter, which effectively “steps down” the voltage while providing a stable output.

Here’s a more detailed breakdown:

• Input Voltage: The SM7035P accepts an input voltage ranging from 1 to 265 VAC.
• Step-down Conversion: The converter uses a switching regulator design to reduce the input voltage to a lower, adjustable output voltage.
• Adjustable Output: The output voltage can be set between 3.3V and 18V, allowing for flexibility in different applications.
• Maximum Current: The device is capable of providing a maximum current of 200mA.
• Efficiency and Power Conversion: The SM7035P is designed for high efficiency and power conversion, making it suitable for various applications.
• RoHS Compliance: The device is RoHS-compliant, indicating it meets environmental standards.
• SOP-8 Package: The SM7035P is housed in a SOP-8 package, a common type of surface mount integrated circuit package.