Category Archives: Raspberry Pi

A Better Option than the PyPortal for a NTP Clock?

Posted on July 2, 2019 by robert

In the prior two posts I discussed the mistake made on the PyPortal that rendered all timing very inaccurate (was that 1000 Hz PWM tone actually 970 Hz or 1030 Hz or somewhere in between?).  Adafruit suggested adding a RTC, … Continue reading →

Posted in Arduino, NTP, NTP Clock, Raspberry Pi | Leave a comment

How much power does a ZumSpot/PiZero need?

Posted on January 21, 2019 by robert

I’ve received several inquiries about using my ZumSpot mobile (from a USB Battery Pack). Inevitably the conversation turns around to the size of the power supply required.  It doesn’t help matters that the US vendors sell a 3-amp USB wall … Continue reading →

Posted in Raspberry Pi, YSF, ZumSpot | 2 Comments

What’s wrong with the serial port on the Raspberry Pi 3?

Posted on March 3, 2017 by robert

The Raspberry Pi 3 added all sorts of features to the Pi, including a much faster speed adjustable CPU, built-in WiFi, and Bluetooth interfaces. Some of the hardware interfaces on the Pi continue to have limited functionality.  Such is the … Continue reading →

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VNC Viewer for RPi

Posted on January 5, 2017 by robert

I had no idea that Raspberrian supported VNC connections to the RPi.  I was astounded to find out that a small VNC Viewer Application would remotely connect me to the desktop! Download “TightVNCViewerPortable” here:  http://portableapps.com/node/32118 Run the installation package. (Running … Continue reading →

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ISS-Above on 7″ LCD

Posted on March 27, 2016 by robert

I finally had a chance to tie the Raspberry Pi Foundation 7″ LCD/Touchscreen onto a RPi 2 running the ISS-Above firmware.  The results were outstanding.  It makes for a nice desk piece, with only a single power supply wire exiting … Continue reading →

Posted in ARISS, Raspberry Pi, Satellite | Leave a comment

ISS-Above: Coolest Tool for ISS Pass Prediction – EVER

Posted on March 26, 2016 by robert

While looking for interesting things to display concerning the ISS during our upcoming ARISS contact, I stumbled across a now commercial product that started not long ago as an overfunded Kickstarter campaign. ISS-Above. ISS-Above is a Raspberry Pi based product with … Continue reading →

Posted in ARISS, Raspberry Pi, Satellite | Leave a comment

Getting the RPi 3 to work with Bluetooth

Posted on March 23, 2016 by robert

After solving the display rotation issue, I was anxious to get rid of the USB based keyboard and mouse, and move onto Bluetooth based devices.  I had followed a RPi blog instruction to update various parts of the OS, and … Continue reading →

Posted in Projects, Raspberry Pi | Leave a comment

Fixing an Upside-Down RPi3 7″ LCD Display

Posted on March 21, 2016 by robert

The Raspberry Pi Foundation announced their new RPi Model 3 this month, upping the processor speed and memory yet again.  They also announced the availability of an “official” 7″ LCD with touchscreen. I couldn’t resist picking up one of each … Continue reading →

Posted in ISS, Raspberry Pi | Leave a comment

Updating WiFi Info for NTP Clock

Posted on October 11, 2015 by robert

My ever-faithful Apple Airport Extreme decided to give up the ghost about a week ago.  I was forced to use the built-in WiFi in my Verizon router as a temporary replacement.  Of course that meant that all the WiFi based … Continue reading →

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TNC-Pi for Raspberry Pi 2

Posted on August 1, 2015 by robert

I just ordered a TNC-Pi 2 (they have a model for the older Pi versions as well) from Coastal Chip Works on Wednesday.  It was in my mailbox on Friday – FAST service! Nice looking board, well put together.  I’m curious … Continue reading →

Posted in APRS, Digital Mode, Gear, Raspberry Pi | Leave a comment