This is remix of DSO138 Simple Case
You need to print:
- 1x DSO138-Case-Lower-18650.stl (solidworks SLDPRT file included)
- 1x DSO138-Case-Upper.stl
- 1x DSO138-LEDWindow-ClearParts.stl (should be some transparent plastic)
- 1x DSO138-ResetButton.stl
- 3x DSO138-SlideSW.stl
- 4x DSO138-PushButton.stl
DSO138 uses ~300mA from single 18650 battery. So one 2200mAh battery can power DSO138 for about 5 hours as digikey calculator says.
4x 2200mAh batteries will hold over 20 hours.
- Apply some solder to Battery Spring Plate contact before inserting them into place. That way you can solder wires much faster without melting plastic.
- Configure Step-Up Module to +9V before soldering.
Components that you will need
- Some wires
- 1x USB cable with MicroUSB connector for charging
- 1x TP4056 module with protection ( like this )
- 1x DC Adjustable Step-Up Module (configure it to +9V before soldering) ( like this )
- 2x LED diode ( like this )
- 4x pairs Metal Battery Spring Plate for AA AAA ( like this )
- 4x Rubber Feet Circle 8mm ( like this )
- 1x-4x 18650 batteries. You can use any amount. You can get them from dead laptop batteries (I use half-dead 1100mAh 18650 batteries) (New 18650 on eBay are expensive, find another place to get them)
- 1x switch. I use KCD1-2 ( like this ) just because I had it. You can use other, just modify DSO138-Case-Lower-18650.SLDPRT in solidworks for your switch.
- Some cardboard to place between batteries and DSO138 PCB to protect it from 18650 batteries damaging board in case you drop it on ground.
You need to flat out side parts of battery plates so they can be inserted ( like on photo #6 )