How to convert image to base64 string
Why do you need to convert? You may have html file with image and do not want to keep your image file separately with html file. In such case you can convert image to base64 string and use it in…
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
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How to send whatsapp messages from your IOT projects
Problem statement You have made an IOT project e.g.: home automation and wanted to send whatsapp messages to your self or some registered number for all the alerts. Here is a simple way to send messages in whatsapp using Whatabot…
Audio amplifier using PAM8403
This is a basic circuit idea of making audio amplifier using PAM8403 chip. Note that this is readily available as a module. But if you need to try your hands on it or want to modify it following circuit may…
Simple FM Radio using TEA5767 Module
Introduction The TEA5767 is a single-chip electronically tuned FM stereo radio module for low-voltage applications with fully integrated Intermediate Frequency (IF) selectivity and- demodulation. The radio is completely adjustment-free and only requires a very few external components. The digital tuning…
Getting Started with Node Red on Raspberry Pi
What is Node Red ? Node red is an Open Source flow based tool for wiring together hardware devices, APIs and online services. It provides a browser-based flow editor making it very easy to use and it requires little programming…
How to enable virtual keyboard in Raspberry Pi
Why do you need virtual keyboard in raspberry pi? Well there can be multiple scenarios when you need virtual keyboard in raspberry pi. You might have added touch screen and now able to discard the mouse but to type anything…
Controlling RGB led using Raspberry pi
Introduction In this post we will see on controlling RGB LED using raspberry pi and python. RGB LED means red, blue and green LEDs. RGB LED products combine these three colors to produce over 16 million hues of light. Things…
How to start using Camera module with Raspberry Pi
Raspberry Pi computer with a Camera Module port All current models of Raspberry Pi have a port for connecting the Camera Module. Raspberry Pi Camera module Note: If you want to use a Raspberry Pi Zero, you need a Camera Module…
How to connect 8 inch Waveshare LCD display with Raspberry PI
This is in continuation with my earlier post on unboxing 8 inch Waveshare LCD display Here we will see how we can connect 8 inch Waveshare LCD display to Raspberry Pi. Hardware connection Use the 15PIN FPC cable to connect…
Unboxing 8 inch Waveshare LCD display
Introduction 8inch capacitive touch screen with a hardware resolution of 800 × 480 with refresh rate of 60hz Capacitive touch panel, support 5-point touch. Supports Pi 4B It can be connected directly to Raspberry Pi using DSI interface Working with…