🔧 Tool of the Week
Wokwi
A browser-based electronics simulator that actually works for modern MCUs like the ESP32, RP2040, and STM32. It’s perfect for testing firmware logic or UI code before you even touch your breadboard. 🔗 https://wokwi.com/
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🛒 Deals & Finds
- Milk-V Duo S – A $9 RISC-V board that can run Linux. It packs a 1GHz CPU and 512MB of RAM into a footprint slightly larger than a Pico. 🔗 https://milkv.io/duo-s
- USB-C PD Trigger Boards – These tiny modules let you pull 9V, 12V, or 20V from a standard USB-C charger. Essential for ditching bulky DC barrel jacks. 🔗 https://www.aliexpress.com/w/wholesale-usb-c-pd-trigger.html
- FNIRSI DSO-TC3 – A pocket-sized 3-in-1 tool that works as a basic oscilloscope, component tester, and signal generator. It’s surprisingly capable for quick desk debugging. 🔗 https://www.fnirsi.com/products/dso-tc3
- 0603 Resistor Kits – If you are moving to SMT, grab a pre-sorted book. It saves hours of digging through individual bags for a 10k resistor. 🔗 https://www.amazon.com/SMD-Resistor-Assortment-Book/s?k=SMD+Resistor+Assortment+Book
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🧪 Cool Build
The E-Ink Macro Pad
A custom-built productivity tool that uses an E-ink display to dynamically label keys based on the active application. No more memorizing layout layers. 🔗 https://hackaday.com/2026/01/29/an-e-ink-macropad-for-improved-productivity/
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📚 Worth Reading
- Understanding Decoupling Capacitors – A clear explanation of why your circuit is crashing and why "just add a 0.1uF cap" is the standard fix. 🔗 https://learn.sparkfun.com/tutorials/capacitors/application-examples
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⚡ Quick Hits
- Cyberdeck.cafe – A gallery and community for high-end custom portable computers and enclosures. 🔗 https://www.cyberdeck.cafe/
- CircuitJS – A real-time visual circuit simulator that runs in the browser. Great for visualizing current flow. 🔗 https://www.falstad.com/circuit/
- MicroPython 1.23 – The latest stable release includes major improvements to the networking stack and BLE support for many boards. 🔗 https://micropython.org/download/
- The Art of Electronics (The X-Chapters) – The legendary "lost" chapters of the bible of electronics are available for deep-dive analog enthusiasts. 🔗 https://artofelectronics.net/