Compact Flash LED not working

Some Compact Flash (CF) to IDE adaptors fail to light up the drive activity LED, I was wondering why… I took a board and removed some components and did some measurements, and I  discovered that the BOTH base pins of the NPN transistors are connected to ground. Huh?! That means that the transistors won’t switch […]

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Arduino Leonardo – Micro Pro bootloader flash

Bootloader upload / fix If the Arduino Micro Pro isn’t working/detected by your OS anymore, you have to fix the bootloader. To do this you can use an USBASP device.     Wiring Signal USBASP Arduino Micro Pro MOSI 1 D16 VCC 2 VCC RESET 5 RST SCK 7 D15 MISO 9 D14 GND 10 […]

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