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just connect your buttons via thread or bluetooth and choose what should happen when press each key
High-Speed & Low-Energy Audio 3W speaker Mic Dual mic array LED Arrays 4pcs RGB LEDs Buttons Action key
Included command strips allow you to place them exactly where you want
control your lighting with the Innr app
4～2V for 0-full scale)
Winsen - MH-Z19C NDIR CO2 Module (Terminal type) just connect your buttons viaMH Z19C NDIR CO2 Module (Terminal type) Profile MH Z19C NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non oxygen dependent and long life. Built in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection
