Tuya Document Center Connection (https://developer.tuya.com/cn/docs/iot) (Document Center, intelligent hardware solutions, voice products, domestic online voice solutions, design reference materials, voice module VWXR2 hardware design guidance. )
Official website introduction video https://www.bilibili.com/video/BV1sp4y1i7bS
Introductory video https://www.bilibili.com/video/BV1CK411K7nK
Based on the netizen: https://oshwhub.com/12344321A/sui-xin-suo-kong_copy, three 18650 batteries are added, and a protection board is added to control the power switch individually. You can choose the power switch or the motherboard directly. Power supply used.
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