🦜 Dangerous Prototypes – Open source hardware projects
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Bus Pirate 5 is here!
http://dangerousprototypes.com/blog/2024/01/22/bus-pirate-5-is-here/
Published: January 22, 2024 14:09
Bus Pirate 5 is the latest version of the multi-tool hackers trust since 2018. RP2040-based, color LCD, 1-5volt power supply and IO buffers, and more! Firmware, hardware and a fresh new forum are hosted at BusPirate.com, which I rescued from spammers a few…
Happy New Year 2024 from Dangerous Prototypes
http://dangerousprototypes.com/blog/2024/01/01/happy-new-year-2024-from-dangerous-prototypes/
Published: January 1, 2024 05:21
Happy New Year! Thank you for reading the blog and being part of our community in 2023! We’re looking forward to more open hardware projects, more how-tos, more videos, more free PCBs, and more hacking in 2024.
Merry Christmas!
http://dangerousprototypes.com/blog/2023/12/25/103440/
Published: December 25, 2023 06:53
Merry Christmas and Happy Holidays to all. May you find many PCBs and other electronics wizardry under your tree or pole. Remember, support is available on Christmas. Just give us a shout in the forum.
App note: The difference between current sense resistors and hall effect sensors for motor control
http://dangerousprototypes.com/blog/2023/11/26/app-note-the-difference-between-current-sense-resistors-and-hall-effect-sensors-for-motor-control/
Published: November 26, 2023 17:00
App note from Bourns’ comparing current shunt resistors and hall effect current sensing pros and cons. Link here (PDF) Current sensing is an essential design function that is necessary in a broad range of applications. For example, current sensing is…
App note: A simple solution for LED overtemperature protection
http://dangerousprototypes.com/blog/2023/11/26/app-note-a-simple-solution-for-led-overtemperature-protection/
Published: November 26, 2023 13:03
Bourns’ new thermal cutoff device for LED protection can be found in this paper. Link here (PDF) Compared to traditional lighting technologies such as incandescent and fluorescent lamps, LED lighting has a much longer life span, consumes far less energy…
App note: Linear motion potentiometers
http://dangerousprototypes.com/blog/2023/11/12/app-note-linear-motion-potentiometers/
Published: November 12, 2023 17:00
App note from Bourns on linear motion potentiometers and how they can be used to detect position by voltage division ratio. Link here (PDF) The elements of the LMPs are manufactured with conductive plastic (CP) for extended wear capabilities. Unlike…
App note: How Silicon Carbide power schottky diode properties provide enhanced application capabilities
http://dangerousprototypes.com/blog/2023/11/05/app-note-how-silicon-carbide-power-schottky-diode-properties-provide-enhanced-application-capabilities/
Published: November 5, 2023 17:00
Great read from Bourns’ white paper about the new SiC Schottky diode which revolutionize power handling capability and other benefits compared to Silicon diodes. Link here (PDF) For diode applications, the ideal component would be one with no voltage drop…
App note: Trimmers interfacing with surveillance system sensors
http://dangerousprototypes.com/blog/2023/11/05/app-note-trimmers-interfacing-with-surveillance-system-sensors/
Published: November 5, 2023 13:00
App note from Bourns about the robustness of trimmers used on surveillance system, typically sealed to protect agaisnt harsh environment. Link here (PDF) Trimmer technology is designed for use in applications where the unit must be calibrated before it is…
App note: Basics of linear fixed resistors
http://dangerousprototypes.com/blog/2023/10/29/app-note-basics-of-linear-fixed-resistors/
Published: October 29, 2023 13:22
App note from Vishay going back to the fundamentals of humble fixed resistors. Link here (PDF) In the shadow of microelectronics, passive components such as discrete resistors would seem to have fallen out of the field of view in electronics. Yet, it is…
App note: Nexperia load switch ICs
http://dangerousprototypes.com/blog/2023/10/22/app-note-nexperia-load-switch-ics/
Published: October 22, 2023 14:07
Nexperia’s app note on their load switches, combining multiple load switch functions in to one chip. Link here (PDF) Nexperia load switch ICs are highly integrated Power Management Integrated Circuits (PMICs) designed to efficiently control power rails…