Differences

This shows you the differences between two versions of the page.

--- 3dprint:strobo-tumbling-cubes [2026/01/09 07:07] – [3D] ivo
+++ 3dprint:strobo-tumbling-cubes [2026/01/09 07:13] (current) – [Code] ivo
@@ Line 8: / Line 8: @@
 ===== Files =====
 ==== 3D ====
-    * {{ :3dprint:strobo-tumbling-cubes.scad|}}
+    * {{ :3dprint:strobo-tumbling-cubes.scad|}} (OpenSCAD)
-    * {{ :3dprint:motorbracket.fcstd |}}
+    * {{ :3dprint:motorbracket.fcstd |}}  (FreeCAD)
-    * {{ :3dprint:pinwheel.fcstd |}}
+    * {{ :3dprint:pinwheel.fcstd |}} (FreeCAD)
-    * {{ :3dprint:sensorbracket.fcstd |}}
+    * {{ :3dprint:sensorbracket.fcstd |}} (FreeCAD)
-    * {{ :3dprint:case.svg |}}
+    * {{ :3dprint:case.svg?linkonly |}} (Inkscape)
 ==== Code ====
+Used an ESP32 (Doit DevBoard), with Platformio
 <code cpp main.cpp>
 #include <Arduino.h>
@@ Line 57: / Line 58: @@
         double dt = ts[tsi]-ts[(tsi+3)&3];
         dts[tsi] = 0.8*dts[tsi]+0.2*dt;
-        double sum = 0.0;
+        unsigned int w = dts[(tsi+1)&3]*(nextAngle-angle)/step;
-        for (int i=0; i<4; i++) {
-          sum += dts[tsi];
-        }
-        //double realStep = dts[(tsi+1)&3];
-        unsigned int w = dts[(tsi+1)&3]*(nextAngle-angle)/step; // dt*(nextAngle-angle)/step*(realStep/step);
         if (w<200000) {
           delayMicroseconds(w);
@@ Line 81: / Line 77: @@
 </code>
 ==== Circuit ====
+Circuit for driving the 12V LED strip. Not very efficient and inverted logic, so it light up until the microcontroller has booted. But you do with what you have lying around...
 {{ :3dprint:circuit.svg |}}