This is how to turn on and off backlight on Raspberry Pi for the official 7-inch touchscreen display and HDMI displays using command-line interface (CLI). I checked it with Raspberry Pi 3 B+ running Raspbian Stretch (September 2017 version) + official 7″ display / GeChic 1002 10.1″ HDMI Display. The official 7-inch touchscreen display [1]… Continue reading “Controlling Display Backlight on Raspberry Pi”
The purpose of the steps here is to remove 1 – 4 below from showing up at Raspberry Pi boot up process. After following the steps, the first thing you see will be Raspbian desktop. 1) Rainbow image 2) Raspberry Pi Logo (image of four raspberries at the top left corner) 3) Blinking cursor (at… Continue reading “Silent boot on Raspbian Stretch/Buster”
I’m using Raspbian Stretch Lite (September 2017 version) and for some reason, wanted to disable IPv6 kernel module, which is loaded by default. Basically, it can be done by blacklisting the kernel module. [1] Here is steps I took. 1. Check already loaded modules (Optional) You can check already loaded modules by ‘lsmod’ command.… Continue reading “Disabling IPv6 Kernel Module on Raspbian Stretch”
This post shows how to setup serial communication between Raspberry Pi and PC using a USB-Serial cable. Here is the list of contents of this post. Contents Prerequisites Steps Wiring Setting up terminal emulator on Windows PC Enabling UART on Raspberry Pi Disabling console service Setting up terminal emulator on Raspberry Pi Test Prerequisites These… Continue reading “Setting Up UART Serial Communication between Raspberry Pi and PC”
The purpose of this post is to run an example code of Bluetooth Low Energy GATT server from BlueZ source code on Raspberry Pi. Here are the contents of this post. Contents – Assumptions – Steps 1. Download Example Code 2. Execute Example Code 3. Install Requisite 4. Start Advertising BLE 5. Verify – Reference… Continue reading “Running BLE GATT Server Example on Raspbian Stretch”
