Blog

MSPM0 OpAmp interconnection schematic

Jan Cumps — Fri, 14 Aug 2026 11:04:48 GMT

Several MSPM0 controllers have more than one OpAmp on board. There are MUX settings to interconnect them. I couldn't find a generic picture of how two OpAmps can be wired up, so I made one. It's based on Figure 17-8. Two OPAs in Difference Ampli...(read more)

MSPM0 sample photodiode with internal OpAmp and ADC

Jan Cumps — Fri, 14 Aug 2026 08:30:23 GMT

When you try to measure light intensity with a photodiode, you have to build some circuitry around it.There are several ways to do that. In this post, I'm investigating TI's application note MSPM0 Subsystem Design Transimpedance Amplif...(read more)

August 12th eclipse: can I measure it?

Jan Cumps — Tue, 11 Aug 2026 09:27:58 GMT

Tomorrow there's a solar eclipse. In Brussels, it's a partial one. 90%. I'm going to try and measure the light intensity during that event. image source: https://www.timeanddate.com/eclipse/in/belgium/brussels?iso=20260812 Google AI: In...(read more)

Building a Local IoT Controller for a NetFlame Stove

afernandez — Wed, 22 Jul 2026 07:22:31 GMT

Hi! I’m writing this post because I’d like to share one of the IoT projects I have recently been working on: a Python application to discover, monitor and control a NetFlame stove directly from the local network. First of all, I want to g...(read more)

Sega Genesis Fanatics Can Now Play Their Favorite Games Online

Catwell — Fri, 17 Jul 2026 18:54:52 GMT

Doragasu’s MegaWifi cartridge placed in a MegaWifi programmer. (Image Credit: doragasu/Kernel Hacks) Retrofitting old electronics with new abilities is an obsession I didn’t know I needed. We love playing video games online. But what if ...(read more)

ASCII Aquarium Turns CYD Into a Tiny Interactive Fish Tank for Your Desk

Catwell — Fri, 29 May 2026 18:51:54 GMT

POWER-PILL came up with an interactive aquarium that runs on ESP32 hardware. (Image Credit: POWER-PILL) I love, love, love, love this. I'm a huge fan of ASCII art, probably due to my BBS days. This is one of those situations where I'm thinking, "why...(read more)

Engineers Develop a Wireless Communication System With 112Gbps Speeds

Catwell — Wed, 27 May 2026 19:56:10 GMT

Schematic of the 560GHz wireless communication system with 112Gbps data speeds. (Image Credit: communications engineering) Researchers from Japan’s Tokushima University, the University of Tokyo, and Gifu University created a new terahertz wire...(read more)

A Comprehensive Guide to LoRa Modules

vijeth_ds — Tue, 27 May 2025 07:20:08 GMT

1. Introduction: What Is LoRa? LoRa (short for “Long Range”) is a radio modulation technology for wireless LAN networks in non-cellular Low Power Wide Area (LPWA) wireless communication network technologies. The physical (PHY) silic...(read more)

element 14 Looking for Roadtesters to Review STMicroelectronics STWINBX1 Development Kit

Catwell — Mon, 28 Apr 2025 19:23:41 GMT

(Image credit: STMicroelectronics) Are you or a loved one encountering challenges with industrial IoT sensing applications such as condition monitoring and predictive maintenance? Then STMicroelectronics’ STWINBX1 Development Kit could be the...(read more)

Hardware hacking Della Mini Split aircon unit

aspork42 — Tue, 25 Feb 2025 04:54:09 GMT

What I'm up to I recently moved from Wisconsin back to my home state of Michigan. (Yes - I had to partially dismantle the Smart Range Hood; but that's a blog for another day) The new house has a nice large garage that we're upgrading & finishing....(read more)

You Can Upgrade Zigbee Devices and Turn Them into Motion Sensors with a Firmware Update

Catwell — Fri, 14 Feb 2025 03:11:19 GMT

Three or four Zigbee devices grouped within a room act as virtual sensors that detect human movement, turning the lights on/off. (Image Credit: Ivani) Zigbee bulbs and plugs have gotten a whole lot better. With a simple firmware update, these smart ...(read more)

Airmarker’s R.One Balloon is a Handy Device For Outdoor Adventurers

Catwell — Tue, 03 Dec 2024 20:09:24 GMT

Airmarker’s emergency balloon can rise to 45 meters and illuminate bright orange. It allows search and rescue teams to find stranded victims. (Image Credit: Airmarker) I feel like we all should have this in our cars for troublesome events. But...(read more)

Review WIZnet W55RP20-EVB-Pico

maxpowerr — Mon, 02 Dec 2024 17:40:00 GMT

At the beginning of 2021, Raspberry PI announced the new RP2040 microcontroller and the Raspberry Pi Pico module. This microcontroller is interesting for its characteristics in particular, the presence of two Arm Cortex-M0 + cores with a clock freque...(read more)

What's new in Raspberry Pi 4?

James_Smith — Tue, 19 Nov 2024 07:09:16 GMT

This article has the details of features and specifications of the Raspberry Pi 4 and has the comparison at some points with the previous versions for a better understanding. (read more)

Integrate IR Rmeote based fan with OpenHAB with TASMOTA

oksbwn — Sat, 16 Nov 2024 05:42:46 GMT

The video post is about how I built a smart IR remote controller using a WEMOS D1 module to automate my new BLDC fan. In this video, I’ll walk you through the setup and integration process, enabling full control of the fan through my home...(read more)