Creating Wireless Router using Raspberry Pi Zero W

This post shows steps to set up Raspberry Pi Zero W as a wireless router. I tested it with Raspbian Stretch Lite (November 2017 version) and this USB WiFi adapter. The figure above shows overview of the idea. Here are some assumptions for this post. Raspberry Pi Zero W (the router) connects to an existing… Continue reading “Creating Wireless Router using Raspberry Pi Zero W”

Disabling Bluetooth on Raspberry Pi

This post shows steps to 1) disable on-board Bluetooth and 2) disable Bluetooth completely. I tested the steps with Raspbian Stretch (November 2017 version).   Disabling on-board Bluetooth The steps below shows how to disable on-board Bluetooth and related services. Those steps also disable loading the related kernel modules such as bluetooth, hci_uart, btbcm, etc at… Continue reading “Disabling Bluetooth on Raspberry Pi”

Lightning Bolt (Under-Voltage Warning) on Raspberry Pi

If a lightning bolt image appears in the top-right corner of the screen, it means Raspberry Pi is not getting enough voltage (4.65V according to this forum post). To prevent it from showing up, there are two options.   1) Replace Power Supply and/or Cable (Recommended) In most cases, it’s due to the power supply and/or… Continue reading “Lightning Bolt (Under-Voltage Warning) on Raspberry Pi”

Silent boot on Raspbian Stretch in Console Mode

The purpose of the steps here is to remove Rainbow image, Raspberry Pi Logo, login messages, etc. from Raspberry Pi boot up process when it’s in console autologin mode. For silent boot in desktop mode, please see this post. After following the steps, the first thing you see will be a shell prompt like below.

I tested… Continue reading “Silent boot on Raspbian Stretch in Console Mode”

Setting Up Raspberry Pi Web Kiosk

This post shows steps to setup a web kiosk using Raspberry Pi. The goal is to load a web page using a browser in full-screen kiosk mode directly after boot up. I tested it with Raspberry Pi 3 running Raspbian Stretch (November 2017 version) with Raspberry Pi official 7″ display. I used Chromium as browser. Also, Internet… Continue reading “Setting Up Raspberry Pi Web Kiosk”