# Build with pisound and MCP23017

**URL:** <https://discourse.zynthian.org/t/build-with-pisound-and-mcp23017/3315>\
**Category:** Hardware\
**Created:** [October 9, 2019, 4:27pm UTC](https://discourse.zynthian.org/t/build-with-pisound-and-mcp23017/3315 "2019-10-09T16:27:34Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![wyleu](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/wyleu/32/514_2.png) [@wyleu](https://discourse.zynthian.org/u/wyleu)\
**Post date:** [October 11, 2019, 5:31pm UTC](https://discourse.zynthian.org/t/build-with-pisound-and-mcp23017/3315/10 "2019-10-11T17:31:51Z")

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Some else had a hot chip on the [Blank screen (HDMI Shows boot to black screen with terminal prompt))](https://discourse.zynthian.org/t/blank-screen-hdmi-shows-boot-to-black-screen-with-terminal-prompt/3244/33)

This might help.

They did kill the chip sadly … ☹

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