In terms of build detail, the bridge includes roughly 5,000 LEGO Technic pins ... Spanning the Firth of Forth, it carries trains between Edinburgh and Aberdeen and played a vital role in creating ...

While the basic concept of LEGO bricks ... were an H-bridge driver to operate the motor and an ESP8266 to generate PWM signals. In order to keep the bricky appearance of the train engine intact ...

Constructed from around 100,000 bricks, the 26ft (8m) long replica of the Forth Bridge features two working train tracks and was built by four ... the bridge includes roughly 5,000 LEGO Technic pins, ...