Here is a custom-designed 3-in-one development board that I recently designed. The board supports any of the 3 MCUs, Also ESP32 should work but the pinouts will be different. The board includes a 3.3v LDO regulator, and USB micro, with native USB for ESP32s. Pinout for UART as well as UPDI for ATTiny. Two headers […]

There are several reasons why you would want to write some data files to an ESP32 or similar MCU’s flash memory. In most of the projects, we need to work with configurations that we don’t want to hard code in our code. One of the most common use cases with ESP32 or similar MCUs is […]

This is a DIY project to make your cheap Multimeter which you forget to turn off and the next time you try to use it and the battery is fully drained. That happened to me a lot. This circuit can be used on any low-power device, not just a multimeter.

Serverless CI/CD build error serverless-*@*: The engine “node” is incompatible with this module. Expected version “>=14.18.0”. Got “12.22.11”
error Found incompatible module.

I recently thought of creating a SuDoKu game using JavaScript. Having played the classic game and enjoyed it in the past, I did not think of how complex the process of generating an instance of a game would be in the beginning. I quickly realized even after generating the random completed state successfully, creating a […]

We have the Ne4j graph database running and the Cypher query ready to get the recommendation for every drink. We will need an Apollo server running in front of it to enable graphQL. GatsbyJs will connect to that graphQL endpoint during the build time to query for the recommended/similar drinks while building each drink’s detail page.