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Tesla Patent: Two Batteries for Cybertruck

https://sudonull.com/tesla-patent-two-batteries-for-cybertruck

Details of the patent for the dual-battery range extender system for Cybertruck with DC/DC and trailer option. Technical breakdown for developers. Study the 800/400 V diagram.

Coin Recognition on Arduino: Optics and Power

https://sudonull.com/coin-recognition-on-arduino-optics-and-power

Detailed Breakdown of DIY Piggy Bank on Arduino with Optical Sensor, Custom PCB, Li-ion Protection, and DC-DC Noise Suppression. Schematics, Power Consumption Optimization, Board Fabrication. Study for Your Projects — Read the Guide.

PwrBlock: prototype power supply tests

https://sudonull.com/pwrblock-prototype-power-supply-tests

Open PwrBlock prototypes passed tests at 96 W with 92.7% efficiency. Component details TPS25983, INA229, LM51772, current/voltage adjustment. For test bench developers — assemble yourself.

Clocks on VLI IV-11 and STM32F401: schematic and code

https://sudonull.com/clocks-on-vli-iv-11-and-stm32f401-schematic-and-code

Build retro clocks on IV-11 vacuum indicators with STM32F401, XL6009 and MP2307. Full schematic, firmware on STM32CubeIDE, RTC calibration. For embedded developers.

dc: programming on a stack calculator

https://sudonull.com/dc-programming-on-a-stack-calculator

Learn dc — Unix calculator as a programming language. Stacks, registers, macros, FizzBuzz and Peg Solitaire. Code examples for middle/senior dev. Start experimenting right now.

From other projects

New DC Batman 2026: reboot with James Gunn, cast and script

https://ymaho.com/new-dc-batman-2026-reboot-with-james-gunn-cast-and-script

James Gunn reboots Batman in 'The Brave and the Bold'. Who will replace Pattinson? Ian Somerhalder, Lee Pace or Christian Bale? Insider info, script with Damian Wayne and predictions. Read first!

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