How to modify a baby piano

10개월 전

Hello colleagues of Steemit.

On this day I decided to modify my daughter's piano that did not have AA batteries, with recycled card materials.

Material's list:

  1. LED diode.
  2. A diode 1n4001, 1n4002, 1n4003, 1n4004, 1n4005, 1n4006, or 1n4007.
  3. One female and one male usb port.
  4. Tin.
  5. Rechargeable battery.
  6. 5.1K Ohm resistor.
  7. Silicone.

Recycled card materials
IMG_20200417_170211.jpg


Part of the materials already extracted.
IMG_20200418_154551.jpg

Starting with the modify operation.
IMG_20200418_162252.jpg

Connect the resistance to the positive side of the LED diode.
IMG_20200418_170518.jpg

Connecting the battery and diode to the female usb port
IMG_20200418_163520.jpg

Modification finished
IMG_20200418_171910.jpg

Testing if it charges with the recycled charger
IMG_20200418_174653.jpg

charger already modified
IMG_20200418_175611.jpg

Connection plane
plano.png



Well, gentlemen, as you can see on the map, the LED is to know if the piano is charged, the resistance is placed because in the tests that I carried out, the LEDs burned out and the resistance is connected to the anode of the diode 1n4001.

Note: Use a 1n4007 diode but the most recommended is a 1n4001 diode, although I put several diodes in the material list.


In the next video the baby piano is already working.

Photos taken with my Moto E4 cell phone. camera application (Best Camera)

Thanks to @lebekons for creating this image
logobrobots007.jpg

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