Latest Posts

RISC-V – Ready for the Prime Time now?


Technology has made our lives easier than ever. In the past, people needed “magic” to speed up their endeavors but now we only need to press some buttons and there you go, you can do almost everything using your fingertips in seconds but things and tools which help us spend an easy life took years…

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Super affordable MCS-51 family CH552 Duinos


If you are looking for a super cheap replacement for something that lies between an ATTiny and an Arduino Mini, and costs around the same as the ATTiny; you should have a look as the CH55X based boards available these days. I was able to get a handful from AliExpress for $1.31 each. The CH552…

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Programming GAL16v8 with Stager Electric G540


This is a starting guide for the impatient, gets you off the ground using your trusty G540 programmer in no time. This guide doesn’t assume you know how to write WinCUPL code, hence example code for a scenario is provided.

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Raspberry PI Zero W is here


Raspberry PI silicon RP2040 has entered the embedded market with a bang, where millions of units have been sold and tens of millions are on the way. It was felt that it lacked connectivity, and Raspberry PI team have listened to the community. We now have a new version rolling out which brings effortless WiFi…

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Memory Alignment Shenanigans


When one ventures out of the 8-bit processor universe, memory alignment is something that is expected to be taken care of for various reasons explained in the below article. Generating Aligned Memory

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Pushing data from esp8266/nodeMCU to MySQL


https://iotechprojects.com/sending-data-from-the-esp8266-to-mysql-directly/ Usually, we use some sort of queuing mechanism to connect two devices or processes where the reliability/availability of either end isn’t guaranteed. However, if you have a reliable connection between two devices, the queues can be skipped. The above article does exactly that. It explains how an esp8266 based board can connect to a…

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PubNub University Courses for Beginners


This supersedes a previous post that showed a five-minute introductory tutorial about the PubNub platform. The PubNub University is offering a series of in-depth courses that are available on YouTube. Very useful for anyone who wants to use a turnkey publish/subscribe solution for their web applications and IoT devices.

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Intel MCS-51(8032/8052) family and PWM


I remember looking at the Intel MCS-96 datasheets in the 1990s and admiring the fact that the more expensive 16-bit controller family had the HSO/HSI (High speed output/input) capability.

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Analog Oscillators Revisited


So,we needed to create a pure sine wave oscillator for driving a 40k Hz ultrasonic driver for an insect/mosquito repellant use case. Covid19 lockdown meant that we had to use from the parts available from our stock. It turned out that we had a bucket load of LM324 from Surplectronics.com. LM324 is a great general…

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MQTT 101


So, you have heard a lot about how the lightweight messaging protocol MQTT is great for IOT applications. Here is a great introduction to MQTT by Node-Red.

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