Monthly Archives: July 2015

Youyue 858D+ hack and learning about microcontrollers.

Posted on July 22, 2015 by mckagse

Detailed Pictures here: youyue858d This was a $40 Chinese hot air unit that I replaced the microcontroller on with a custom firmware with much tighter controls. The temperature fluctuated +-15C before the mod. Now it holds the temp within about 3C … Continue reading →

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