Articles

WEMOS D1 Weather Station

Posted on by Phillip Jubb

To start off the Home Automation Project, I thought I might gather some weather data to test out the MQQT broker.

I’m currently working on the Arduino code to connect to the MQTT broker.

I’m using a WEMOS D1 connected to a DHT11 to measure temperature and humidity. The DHT11 is definitely the poorer cousin to the DHT22 and sometimes fails to reads as it is a really slow component. It also has limited range which might not be great for outdoor projects where the temperature drops below 0 degrees.

 

 

Introduction – Apple Device Management

Posted on by Phillip Jubb

Managing Apple iDevices can be quite complicated and as the number of devices you are responsible for increases, the challenge becomes insermoutable.

This project is my attempt to get a Mobile Device Management solution running on a shoe-string budget.

Using only free or nealy free solutions, my aim is to take control of the devices i need to manage and understand how they are used, where they are and control the installation of both in-house and third-party applications.

Initially I intend to use only Apple provided tools. If this provides adequate control, then all will be fine and the project will end. If not, then I will investigate the miriad of other tools available, all be it at a significant budget increase.

The Clock Module

Posted on by Phillip Jubb

The clock module synchronises the working inside the CPU. It triggers changes in state and timing of most if not all of the computer.

The clock module consists of 3x 555 Timer IC’s which are used to generate a timing pulse and also to de-bounce input from the user when taking single steps or changing the clock from run to step.

The variable resistor allows for variable clock speeds. The second and third 555 timers debounces the step input and the step/run select switch. Denouncing removes the tendency for the switch/button to “double tap” itself when the user triggers it. This happens in a fraction of a second which humans can’t see but computers are just that fast.