Who doesn’t love Lego© ? Electronic especially micro controller such as the Arduino, Raspberry and ESP 8266 have all become so accessible. There are plenty of add-on board otherwise called ‘hats’.

The great thing is with all these boards you can make you own hats for a couple cents. Just grab a set of 10 from Ali-Express for your favourite board. That’s what I did and made few that can be stack on top each other.

It’s a great way to test out an idea or prototype.

Countdown Timer

Components used

Source Code:https://gist.github.com/glyons/98ab899738b86a6cbc3fec7644a3f176

Audio Source Switch

Components used

Source Code:https://gist.github.com/glyons/8f6abe29bbec4b29f4e9f49c1558fbf6

Board Layout

Stacked boards - Charger,Microcontroller, Gyro
Stacked boards – Charger,Microcontroller, Gyro
Before - the unholy mess!
Before – the unholy mess!

I2C – OLED Display Board

I2C bus using D1 and D2 I/O pins

This board can be used for two purposes. Direct connection to OLED display and Gyro sensor.

Beeper Board Module

Using a transistor, resister and mini speaker.

Speaker Module

Speaker Module

Rotary Dial Board

Using a encoder rotary dial switch and push button switch

Photo to add…

February 19, 2019

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