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Feature ESP32-WROOM-32 ESP32-WROOM-32D ESP32-WROOM-32U CPU Dual-core Xtensa® 32-bit LX6 Dual-core Xtensa® 32-bit LX6 Dual-core Xtensa® 32-bit LX6 Clock Frequency Up to 240 MHz Up to 240 MHz Up to 240 MHz Wi-Fi 802
There is also an onboard potentiometer to adjust the sensitivity
Interface: SPI (4-wire)
with an effective low cost
3 to +32 volts with a single power supply
Magic Pad for Kids HCSR04 holder Feature ESP32-WROOM-32 ESP32-WROOM-32D ESP32-WROOM-32U CPUMagic Pad for Kids The 3D LED drawing board (A3 size) can be used for drawing with LED fluorescent light. The A3 Magic writing Pad is non toxic and is made with high quality material. The board set will help the child to reveal his innovative potential. Take a special tablet with a light accumulating coating, and a flashlight marker, and start drawing! The board can be viewed as a developing toy. From the touch of the "brush" to the "canvas" there