How to use a Transistor as a Switch
In this tutorial I will show how to use a transistor as a switch. Switching and Amplification are the most common application of a transistor… Read More »How to use a Transistor as a Switch
What is AWS IoT SiteWise
Getting performance metrics from industrial equipment is challenging because data is often locked into proprietary on-premises data stores and typically requires specialized expertise to retrieve… Read More »What is AWS IoT SiteWise
Automatic Light ON-OFF based on presence of people
It is quite often that we see in homes, office that people leave the lights, lamps and fans in on condition even if it not… Read More »Automatic Light ON-OFF based on presence of people
NodeMCU to AWS IoT service
In this series of post we will see how we can connect a NodeMCU to AWS IoT service. We will see the settings needed to… Read More »NodeMCU to AWS IoT service
Storage classes in C
To completely define a variable, not only the ‘type’ of variable, the ‘storage class’ of the variable is also important. In other words, not only… Read More »Storage classes in C
How to use #define Macros in C
Macros are a type of pre-processor. Pre-processors begin with the “#” symbol and are also called directives. They are of great convenience to the programmers… Read More »How to use #define Macros in C
The ESP8266 SPIFFS File System – Complete Beginner Guide
Did you know each ESP8266 allows you to partition the system flash such that you can use it to store both code and support a… Read More »The ESP8266 SPIFFS File System – Complete Beginner Guide
Upload Files to ESP8266 SPIFFS
ESP8266 SPIFFS sketch data upload tool allows us to upload files to the NodeMCU or ESP8266 flash memory. This filing system can be used to… Read More »Upload Files to ESP8266 SPIFFS
How to Connect NodeMCU to AWS IoT Core
This post is part three in a three part series of steps to connect Connect NodeMCU to AWS IoT Core. In the last two post… Read More »How to Connect NodeMCU to AWS IoT Core
How To Convert Certificates from .pem to .der format
There are two main methods for encoding certificate data – “.pem” and “.der”. DER = Binary encoding for certificate data PEM = The base64 encoding… Read More »How To Convert Certificates from .pem to .der format