DIY Electronic Projects that Are Easy to Make

For all those electronic enthusiasts who carve for DIY electronic projects there is a lot of good news. In the world flooded by information courtesy the internet, there are countless DIY electronic projects shared by hobbyists over the internet.

Here is one to fuel up your mind and get you started on a DIY electronic project of your own:

Battery powered USB charger

Materials

  • Soldering iron
  • Solder
  • Solder sucker
  • Multimeter
  • Flush diagonal cutters
  • Magnifier with a helping third hand
  • 5V boost converter
  • 8 pin socket
  • Power supply capacitor
  • Bypass capacitor
  • 1/8W 3.3k resistor
  • 1/8W 75K resistor
  • 1/8 W 49.9K resistor
  • Schottky diode
  • 10uH power inductor
  • USB type A female jack
  • 2X AA battery holder
  • PCB circuit board

Directions

DIY Electronic Projects
DIY Electronic Projects
  • Solder the kit together
DIY Electronic Projects
DIY Electronic Projects
  • Place the resistor R5
DIY Electronic Projects
DIY Electronic Projects
  • Bend the resistor into a staple and slip it onto the top of the Printed Circuit Board. Bend the little leads out so that you can flip over the PCB and the resistor will stay in place.
  • Solder in the 75K 1% resistors R2 and R4.
DIY Electronic Projects
DIY Electronic Projects
  • Solder the R1 and R3
DIY Electronic Projects
DIY Electronic Projects
  • Place the capacitor C1 and C2 so that the 2 legs (leads) slide thru the two metal holes in the PCB (pads). The capacitor will sit flat against the PCB.
DIY Electronic Projects
DIY Electronic Projects
  • Examine the diode D1 and find the end with a white stripe. This stripe should match up with the silkscreen image, which also has a stripe on one end. In this image, it is towards the top.
DIY Electronic Projects
DIY Electronic Projects
  • Solder the IC socket over the 3.3K resistor but the resistor should not interfere as long as it was soldered in properly. Make sure you solder the socket in so that the notch in the edge of the socket matches up with the notch in the silkscreen image of the socket.
DIY Electronic Projects
DIY Electronic Projects
  • Solder the power inductor L1. The inductor may not sit perfectly flat, since the socket is in the way a bit. That’s ok, just lean it over a little.
DIY Electronic Projects
DIY Electronic Projects
  • Solder the 2 electrolytic capacitors

  • Solder in the 2X AA battery holder. The red wire goes to the hole marked + and the black wire goes to the hole marked. Make sure you have them in right or you can damage the circuit.

  • Carefully insert the boost converter chip. Make sure the notch in the chip matches the notch in the socket. If the socket was inserted backwards, make sure the notch faces the flat edge of the PCB as shown. Make sure the chip is seated all the way in and that the pins aren’t bent.
  • Insert two fresh AA batteries – alkaline or rechargeable

  • Use your multimter (hey you know how to use a multimeter right? If not, please read our voltage tutorial here) to measure the voltage in the two outer pins of the USB connector. You should get a bit higher than 4.8V but lower than 5.2V.
  • Next is the USB type A connector. This is the connector that is on a computer, and nearly all USB charging cables will plug into it. The Connector should snap easily in place.
  • Test your kit and your USB charger is ready.

DIY electronics projects are very interesting and once you get started it is difficult to stop.

Also See: DIY Hydroponics In Few Easy Steps

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