[Duncan McIntyre] lives within the UK however participated in a secret Santa reward trade for his Dutch pals’ Sinterklaas celebration. In conventional maker vogue, [Duncan] went overboard and created a miniature gymnasium reward field, full with flashing lights, music and a motorized lid.
[Duncan] used [TanyaAkinora]’s 3D printed tiny gymnasium to outfit the field with tiny tools, with a tiny mirror added to spherical out the tiny room. An ATmega328P was used as the principle microcontroller to drive the MP3 participant module and A4988 stepper motor controller. The stepper motor was hooked up to a drawer slide by way of a GT2 timing belt and pulley to actuate the lid. Energy is offered via an 18V, 2A energy provide with an LM7805 offering energy to the ATmega328P and supporting logical components. As an additional flourish, [Duncan] added some {hardware} audio sign peak detection, fed from the speaker output, which was then sampled by the ATmega328P to have the ability to flash the lights in time with the enjoying music. A micro change detects when the entrance miniature door is opened to start the sequence of lights, music and lid opening.
[Duncan] gives supply on GitHub for these curious concerning the Arduino code and schematics. We’re followers of miniature items of ephemera and we’ve featured tasks starting from tiny 3D printed tiny escalators to tiny arcade cupboards.
Video after the break!
