Author : Karl Krueger

BME280 Sensor

The BME280 temperature, humidity, and pressure sensor was developed by The Bosch Group. The sensor is available as a 8-Pin LGA from the manufacturer. To simplify this project, we will be working with one of the many breakout boards available that allow the sensor to be easily incorporated into a breadboard, Arduino, or Raspberry Pi […]

ATtiny3224 Microcontroller

The ATtiny3224 microcontroller Is a member of the latest series of microcontrollers from Microchip Technology Inc. The ATtiny3224 utilizes an AVR® architecture running up to 20 MHz with 32 KB program flash memory in a 14 pin SOIC package. This new series chip, with its increased memory capacity of 32 KB of flash, equals the […]

Allstar Node

I have read many articles on building an Allstar node based on the commonly available CM108 sound fob and the Baofeng 888s HT radio. Most of the articles that I have read rely on making major modifications to the CM108 sound fob by removing the 3.5mm audio sockets, removing several components, scratching etchings on the […]

Low Power Baofeng 888s

The scope this article to modify a Baofeng 888s HT to prepare it to be used to build an AllStar node. There are many excellent resources on the internet and YouTube on building an Allstar node with the Baofeng 888s that I highly recommend watching before proceeding. One resource that I found very helpful is […]

Becoming “Radioactive”

I have always been fascinated by radio since my earliest memory. As a child, I frequently “borrowed” my uncle’s expensive transistor radio and listened to it stealthily under my pillow. My grandfather had a short wave radio that provided endless hours of listening. Unfortunately, between not knowing CW and his radio being only AM, there […]

Catching the photo bug

Been involved with photography since my grandfather first fascinated me watching a print magically materialize in the developer tray under the dim red lights of his garage darkroom. A machinist by trade, he build his enlargers from scratch. In retrospect, the optics utilized were slightly suspect, but still, a beautiful black and white print of […]

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