August 2020 22
ThingsBoard: Setting up mail alerts
Posted By : Dave Hartburn

As well as graphing, wouldn’t it be useful if ThingsBoard could send a mail alert when a particular parameter for a device goes above/blow a threshold, or when telemetry has not been received for a

August 2020 14
ThingsBoard Data Hacking
Posted By : Dave Hartburn

Thingsboard is a great IoT logging platform, however some management of data can be impossible to do from the GUI and can get annoying. The following database hacks provide a workaround to some of the

August 2020 04
Project: A Micro:bit calculator
Posted By : Dave Hartburn

Using a 4×4 keypad and a 16×2 LCD screen, can you construct a simple calculator? Step 1: Connect up the hardware. Review the notes on keypads and LCD screens, make sure you understand how they

August 2020 03
Micro:bit Keypads
Posted By : Dave Hartburn

Keypads make a convenient way to add lots of buttons to a Micro:bit and they come in a range of sizes. The type above are known as membrane keypads. They have a sticky back, are