Although I am a professional embedded engineer, I feel that the development of sensortile.box "expert mode" is relatively new and simple, so I plan to only use "expert mode". This work monitors the child's sitting posture when writing. When the child sits upright, no prompt is generated. When the child lowers his head, the sensor light flashes to signal an alarm!
Complete description of the work production process: http://bbs.eeworld.com.cn/thread-1130122-1-1.html
Blockdiagram
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