1 PCS Water Lamp Kit NE555+CD4017 Water Lamp Electronic DIY Parts Electronic Marking Tools this 8 Pockets garden tool

this 8 Pockets garden tool bag serves as a perfect gift for gardening lover

5pcs Garden Farms Tomato Planting Hook

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1 PCS Water Lamp Kit NE555+CD4017 Water Lamp Electronic DIY Parts Electronic Marking Tools this 8 Pockets garden toolITEM NAME: 1 PCS Water Lamp Kit NE555+CD4017 Water Lamp Electronic DIY Parts Electronic Description: Power supply voltage: 3 5V DC This kit is mainly composed of a clock generation circuit and a decimal counter circuit. Self excited multivibrator with NE555 as the core Charging time is: 0. 695 (R2+R1+VR1)C2, The discharge time is: 0. 695 (VR1 + R1) C2 Adjusting VR1 can control the output frequency of the oscillator. The clock oscillation signal of U1