I recently visited relatives that frequent casinos at Niagara Falls. I decided to brush-up my Blackjack skills (or lack thereof). I was also looking to enhance my Python (CircuitPython, that is) skills by developing projects, such as this Blackjack game 😉 The Adafruit PyPortal IoT Device with display has everything you need to connect to […]
PyPortal Blackjack game: uses sprites, touch, audio Read More »
The Adafruit PyPortal is a great little IoT device with lots of projects available. It’s an awesome H/W and S/W platform that inspires many creative ideas. The PyPortal uses an ATMEL (Microchip) ATSAMD51J20, and an Espressif ESP32 Wi-Fi coprocessor. PyPortal has a 3.2″ 320 x 240 color TFT resistive touch screen and has several built-in
PyPortal – access the micro-SD Card Read More »
From the Apache CouchDB docs: CouchDB is a database that completely embraces the web. Store your data with JSON documents. Access your documents with your web browser, via HTTP. Query, combine, and transform your documents with JavaScript. CouchDB works well with modern web and mobile apps. CouchDB also has Fauxton, a native web-based interface built
UPDATE: CouchDB 2.3 on Raspberry Pi 4 & 3 Read More »
[UPDATED 05 Jan 2020] There is now an official Ubuntu 18.04 LTS image for Raspberry Pi 3. Install the arm64 image following instructions on the Ubuntu Wiki. You can then install MongoDB 4.2.x per this blog entry. NOTE that I still recommend adding swap space – as mentioned below. [UPDATED 03 Nov 2019] Looking to
MongoDB 4.0.11 (64-bit) on Raspberry Pi 3 Read More »
[Updated: 28 Feb 2019] Time to lose this post! The MongoDB 3.4 binaries have vanished from the Debian buster ARM repository BUT I now have MongoDB 4.0.6 running under Ubuntu 18.04 on a Raspberry Pi 3B+ Check out this new post! I’ve been asked multiple times if MongoDB 3.2 (or greater) can run on a Raspberry Pi.
MongoDB 3.4 (64 bit) running on a Raspberry Pi 3 [update] Read More »
I decided to try the Pi-hole® network-wide ad blocking service on a ODROID C2 SBC. I Googled around and saw mention of this running on ODROIDs but no specific “how-to” info. I know it runs well on a Raspberry Pi as I tried that 🙂 The ODROID C2 has more power, memory and network bandwidth
Pi-hole® Ad Blocker runs great on the ODROID C2 Read More »
I had the need to embed a webcam image in a webpage. I did not want to stream video and did not want to view images directly on my Raspberry Pi. I wanted to take a picture every so often and upload the image onto a website. I also wanted the webpage to update with
Insert webcam image into a webpage Read More »
I use a MongoDB database to analyze data extracted from logs on Linux production servers that handle hundreds of thousands of users per day. I also have databases that I use for research topics – oriented around K-12 education. I have pulled data from The British Library and various datasets from the Europeana Collections. I’ve
UPDATE: MongoDB 4.0.6 on ODROID C2 with Ubuntu 18.04 Read More »
Our garage has a ladder sticking out near where we park our car. We want to park close to the ladder leaving enough room to walk in front of the car and also allow room behind the car for the garage door to close. A typical solution to this need, and one we’ve used in
Replace that tennis ball with a talking Raspberry Pi! Read More »
The main operating system for Raspberry Pi, Raspbian, continues to evolve. The latest version as of August 2017 is “Raspbian Stretch” — based upon the current stable version of Debian 9. The previous version was known as “Raspbian Jessie”. One difference between versions is OpenSSL libraries. OpenSSL is a general purpose cryptography library that provides an
MongoDB 3.0.14 for Raspbian Stretch Read More »