#arduino #gy-521 #mpu6050 #gyroscope #hourglass #C #C++ #ledcontrol #tilt sensor #maz7219 #8x8 #Matrix Display

Hourglass Project - Final Status - Part 6

Read earlier parts The Hourglass Project came to a finalization point. Project goals have been achieved. The LEDs light up and turn off giving the illusion of balls/sand particles falling down with the pull of gravity in all compass directions now. The hourglass also does automatic dimming/power saving if unused and on touch wakes up after power save. The combination of these make it a simple, but fully functional object satisfying the original targets. ...

#arduino #gy-521 #mpu6050 #gyroscope #hourglass

MPU6050 on GY-521 - Hourglass Prj Part 5

Read Part 4 After bringing hourglass to a satisfactory working level with the simple ball tilt sensor (see pic below) I wanted to go back to the original idea and make it work not only in the Upright-Upside-down directions, but also have the balls fall and roll in all compass directions as the object’s tilt angle changes. Of course the simple ball in a tube sensor cannot do that. It happens that a GY-521 breakout board with a MPU6050 on it was waiting for this opportunity. ...

#arduino #C #C++ #Cpp #ledcontrol #max7219

A working prototype - Hourglass Project - Part 4

Read Part 3 first The summary update is that I have a working hourglass prototype that delivers the basic requirements. Since the last update, the code changed considerably. Certain nice object-oriented concepts went away, bit packing and elimination of anything that can be replaced or reused from existing objects resulted in the code footprint to shrink to less than half the original size that was working on the PC. This allowed for a successful compile and upload to Arduino. ...

#arduino #max7219 #tilt-sensor

Hourglass project - Part 1

Started working on a new mini-project to build an hourglass using cascaded led matrix displays driven by max7219s and an arduino with some kind of a gravity sensor on it. What makes this project interesting is I intend to make it imitate physical falling of sand particles under gravity. Initial challenge is to have a prototype housing. As I intend to imitate a real object I cannot simply place components on a breadboard and lay it flat. ...