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DIY rechargeable desk lamp

DIY rechargeable desk lamp

Author: Date: 10/25/2018

Prepare the required tools as shown in the pic, and also need an electric drill.
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Prepare a power bank and a plastic box with the size: 190mm * 135mm * 55mm.
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Then also need to find four light emitting diode, a lamp base.
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Now start to process, the plastic box is made as shown in the pic.
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One is the position of the adjustable switch, and the other is the charging position.
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We took the power bank apart.
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Separate the battery from the board.
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Place the circuit board in the position as shown in the pic.
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Then we install the lamp and turn it on.
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I installed a blue indicator light in the lamp. And I added a resistor in front of the lamp.
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Now start wiring, we use the charging circuit board in the power bank for safety, and use the other board for the power supply.
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4 terminals control the brightness of the lamp, the big 3 led lights are on is the brightest, the middle is 2 led lights on, the lower is 1 led light on.
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If you can find an 8 terminal, you can adjust the brightness in order.
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Finished, this can also charge your phone! A long press of switch is for on and off, you can check the power consumption by pressing it.
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Looks not bad, and pay attention to the short circuit.
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Source from: Rouding.com
Translated by: Utsource

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