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Updated current rating of extension board.

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Maximilian Stiefel 7 years ago
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      README.md

6
README.md

@ -24,15 +24,15 @@ iron(III) chloride (FeCl<sub>3</sub>) dissolved in water of course.
This PCB is made to fit the [Nucleo-F103RB](http://www.st.com/en/evaluation-tools/nucleo-f103rb.html) This PCB is made to fit the [Nucleo-F103RB](http://www.st.com/en/evaluation-tools/nucleo-f103rb.html)
development board from STM. Features: development board from STM. Features:
- 64 LED driving stages - 64 LED driving stages
- 3.36 A and 26 V max. input (0.05 A per stage results in 3.2 A) - 6.4 A and 24 V max. input (0.1 A per stage)
- 0.1 A max. per stage - 0.2 A max. and 350 mW dissipation max. per stage
- 10 Bit DAC to steer the driver - 10 Bit DAC to steer the driver
- Optional potentiometer to steer the drivers - Optional potentiometer to steer the drivers
- Control-loop for constant current - Control-loop for constant current
- Feedback amplification to get a high current resolution - Feedback amplification to get a high current resolution
- I2C header - I2C header
- SPI header - SPI header
- 2 rotary encoder and 1 tactile switch - 2 rotary encoders and 1 tactile switch
![3D Preview from KiCad (2).](https://github.com/m3x1m0m/ecthing/blob/master/pcbs/extension_board/output/3d_pic_2.jpg) ![3D Preview from KiCad (2).](https://github.com/m3x1m0m/ecthing/blob/master/pcbs/extension_board/output/3d_pic_2.jpg)

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