Open Hardware: ISAs, ESP32, Arduino, and MagPi (Raspberry Pi)
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How Open Source instruction set architectures are transforming security
Open Source hardware security is poised for a transformative revolution, spearheaded by advancements in ISAs.
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Olimex ☛ ESP32-H2-DevKit-LiPo Open Source Hardware board is ready for prototyping
ESP32-H2 is an ultra-low-power Internet of Things (IoT) solution offering multiple protocol support on a single chip. It integrates a 2.4 GHz transceiver compliant with Bluetooth ® Low Energy and IEEE 802.15.4-based technologies, supporting Bluetooth 5 (LE), Bluetooth mesh, Thread, Matter, and Zigbee.
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Arduino ☛ A glockenspiel that plays itself
An Arduino Mega 2560 board controls those solenoids through FETs (field-effect transistors). Those are necessary because the solenoids each require about 1A of current, which is more than the Arduino can supply through a pin. CamsLab also implemented flyback diodes to prevent damage, since solenoids are inductive loads. Those components and the copper bars mount onto a simple frame made of aluminum extrusion.
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Raspberry Pi ☛ This Amiga is not an Amiga | The MagPi #137
Buying a used Amiga 1200 – a computer launched by Commodore in 1992 just two years before it filed for bankruptcy – is sure to leave a dent in your wallet. The 32-bit machine in its most basic form tends to sell for upwards of £300. Add a hard drive, memory expansion or an accelerator card and you may want to arrange a meeting with your bank manager.