Author: Sankar Cheppali

Teams have limited time and resources. There will always* be more things to do than what’s possible. Then how do teams choose what do ? many teams adopt

Every complex software system will have some edge cases. It might not be possible to enumerate all the possible edge cases in the design phase. Some will slip

Raspberry Pi’s power consumption is increasing with each version. Increased power usage cause core temperature to rise. We can monitor the Raspberry CPU temperature without an external temperature

Mosquitto is popular MQTT broker, its available through the raspberry pi main repository. So installing it is very simple. sudo apt-get update sudo apt-get install mosquitto sudo apt-get

In the past, setting up raspberry pi would require a keyboard and monitor. There were ways to do it without keyboard in the past also, but it was

MQTT is a popular pub/sub protocol in IoT space. Its lightweight and has client libraries for several IoT platforms. We have already seen how to use MQTT on

When a colleague or a friend comes to you with a problem, most of the time it’s because they are so deep in the rabbit hole, they last

Digital clocks are affordable and ubiquitous. In this post, we will build a digital clock using ESP32 and TM1637 on Arduino platform. There are several TM1637 based 4

Networked digital devices can get time by sending a NTP request to any one of the NTP servers available on the internet. This is very use full service

All digital clocks experience clock drift. They need to periodically synchronisation with reference clocks. Networked devices such as PCs and smartphones use Network Time Protocol (NTP) for clock