Rectangular green printed circuit board featuring a central black microcontroller chip and multiple surface-mounted components, including capacitors and resistors. A silver module labeled TTG133-33 is on the left side, likely indicating integrated wireless capability. The board has a USB connector on the right side and visible pin headers around the edges for connectivity. Gold mounting holes are positioned at each corner of the board. The intricate arrangement facilitates electronic projects and applications, commonly used in embedded systems.
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