This variant attempts to be as faitful to the Blackmagic mini as possible, but also has several diferences. The schematic and board have both been designed using Cadsoft EAGLE v6.4.0. ## Differences ### Uses 0603 [1608 Metric] components Makes reflow soldering much easier. ### Includes Level Translator This board incorporates the same level translator used in the full-sized Blackmagic, so it can be used to safely program 2.7V or 1.8V systems. ### USART Connector The STM32F103's USART1 peripheral is broken out into a 0.1" header. The hole centres are [slightly offset to allow a press-fit](https://www.sparkfun.com/tutorials/114). ### BOOT0 Button As well as the standard button for entering USB DFU mode, this variant also provides a button for pulling the BOOT0 pin high to activate the STM32 SystemMemory bootloeader. This means that /scripts/bootprog.py can be used to program and reprogram the chip over the USART1 interface. ## Parts and Costings * [Parts List](Parts.md) Parts Cost (Approximate): £14 + VAT ([uk.farnell.com](uk.farnell.com) August 2013) Programming Cable: £8.49 + VAT ([uk.farnell.com](http://uk.farnell.com/samtec/ffsd-05-d-06-00-01-n/ribbon-cable-idc-152-4mm-grey-10way/dp/1667659) August 2013)3D