My humble review of 2019, showing favourite/popular/ unpopular videos. Nothing else to be said!.....

This project will allow an ESP32 to access online weather forecasts for display on an E-Paper display, running on batteries with an always on display. Cheap Lithium Ion batteries will give around 1.5 to 2 weeks service, better quality or better capacity will give you potentially several weeks. The video below explains how to make the project, the source code.....

The BME280 based pressure and temperature sensors have an amazing accuracy for their price point (around 5USD, 5Euro, 5GBP or cheaper!) and they are incredibly easy to connect up and use. Both I²C or SPI busses are usually supported. Below is the one similar to those that are readily available. BME280 capable of I2C or SPI connection They usually come.....

The BMP280 based pressure and temperature sensors have an amazing accuracy for their price point (around 1$USD, 1Euro, 1GBP or cheaper!) and they are incredibly easy to connect up and use. Both I²C or SPI busses are usually supported. Below is the one similar to those that are readily available. They usually come with header pins that need soldering, although.....

This version fixes some bugs and adds an additional master volume option. Most of this work is courtesy of two subscribers. One of which did some significant bug fixes, especially on making the library work whilst writing to EEPROM. I only fixed one minor bug. But they don't want any credit, so I'll take it all ;) The download is.....

The video below should be used in conjunction with this article, it contains information that is not available below. Using E-Paper (E-Ink) Displays with ESP32 E-Paper (or E-Ink) displays are remarkable devices. They require very little power when up-dating and no power at all once updated. The also provide a paper like contrast and clarity. Which is why they.....

Using one of these screens with an ESP32 is very easy and requires little change over using then with an Arduino except that the connections are different. This article should be used in conjunction with the video below. The ConnectionsThe SDA connection goes to pin 21 and the SCL to pin 22. You'll need the libraries installing into the.....

If you haven't read the previous article (part 1) then I suggest you follow this link otherwise this write-up won't be of much use! In the last article we got the screen and the MAX30100 pulse/oximeter up and working. In this one we're going to add everything else! A video has been produced that accompanies this article and should be.....

This article supports a video on the build of the Star Trek Sick Bay project (external you tube link). You should watch that video as well as this article as it contains information not mentioned below. This is part one of a two part write up. Doing all this on one video/article would be too much at once and so.....

A build of a working original Star Trek display with real sampled heart beat sound. Uses various sensors to get the readings from your body (via just your fingers) and displays them in the style of the 60's sick bay screen. This bare "Bones" system could be built into a model unit or even a replica Tricorder. Full instructions and.....