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). Update (Jul 9, 2019): Tested with Raspbian Buster 2019-07-10. 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… Continue reading “Disabling Bluetooth 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”
Update (May 22, 2019): Step 5 has been updated to adopt the latest version of Raspbian (2019-04-08). 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… Continue reading “Silent boot on Raspbian Stretch in Console Mode”
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 B+ running Raspbian Stretch (November 2017 version) with Raspberry Pi official 7″ display. I used Chromium as browser. Also,… Continue reading “Setting Up Raspberry Pi Web Kiosk”
Below shows how I added a physical power switch to Raspberry Pi. It enables boot up, shutdown, and reboot Raspberry Pi board. Note: This switch does not actually power-up or power-down, and Raspberry Pi board consumes some mA of current even after shutdown (i.e. halt state). To control actual power, additional circuit such as this is… Continue reading “Adding Power Switch on Raspberry Pi”
