transistors

72 Channels Serial To Parallel Driver Board Using 74HC595 ULN2803

72 Channels Serial To Parallel Driver Board Using 74HC595 & ULN2803

Electronics News Updates / Ibrar Ayyub

72 channels Serial (SPI) to parallel driver board has been designed for various applications. This project can be used as multi Solenoid driver, large size 7 segment display driver, bar graph driver, and LED driver. The project works with 5V logic levels. Output load supply 12V-48V DC and each output can drive 500mA load. I […]

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Repair dead AVR's – Attiny fusebit doctor (HVSP)

AVR ATmega Projects, Other Projects / Ibrar Ayyub

Did you make a mistake while programming fusebits, or purposely disabled reset pin (RSTDISBL) or ISP programming (SPIEN)? No need to buy or make inconvenient HV programmer only for unlock couple of Tiny AVR’s. This Attiny fusebit HV doctor will cure your dead tiny microcontrollers, by restoring all fusebits to factory settings – nice and

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