Portable 20MHz Oszilloscope – Bambis Homepage

I wanna share how I built a 20MHz dual channel Oszilloscope based on Bitscopes Micro, Raspberry Pi 3 and 7″ Touchscreen.

Needed parts

Bitscope Micro
Bitscope Hammerhead
Raspberry Pi 3 Model B
Raspberry Pi Touch Display (7″, 800×480)
TOOGOO Micro USB Board
Micro USB Cable (>10cm)
Mini USB Cable (>15cm)
2×5 pin header (2.54mm pitch)
10 pin flat cable (1,27mm pitch)
2×5 pin socket connector (2.54mm pitch)
4x DIN912 M3 18mm
2x DIN912 M3 10mm
3D printed case and more pictures (see github)
USB Powerbank or -supply (>1.2A).
Soldering Iron, Screw drivers, etc.

Prepare parts

Touchscreen assembly and install PI

Assemble 7″ touch screen as explained here.

Hint: Before doing everything step-by-step, read my next chapters hints of changes!

Changes from standard touch assembly

Hint: You only need all 4 wires, if you want to use very old PIs.

Hint: Unlike explained above, flip PI upside down to safe some space. The standard position will not fit into my 3D printed case.

Hint: Due to the flipped PI, there is not space for the Dupont Connector. So I cut cable (red/black) to 10-15cm and soldered it to the PI (On github are more pictures available with more details).

Solder power cable (Micro USB)

For this I used a Micro USB board and a Micro USB cable cut to 10cm length and soldered them together.

Solder Bitscope power cable (Mini USB)

To power the bitscope it needs to be connected to one USB port via its Mini USB cable. I decided to solder it directly to the PI. Cut mini usb cable to 15cm length and solder it to the PI like shown in the picture (colors are standarized).