This is a mini computer with 3.5 inch touchscreen. May be a little smartphone. You can build it under 30$! Required Metarials Collect these things-1. Raspberry pi zero – 5$2. 3.5 touchscreen with pen – 15$3. 16 or 32 gb sd card – 6$ Process Very simple.Connect the touchscreen (HDMI) with HDMI …By: rinipakhe11 // Read more: original article.