STM32F103C8T6 - Arm Cortex-M3 MCU (Blue Pill)

@@ -41553,8 +41553,15 @@ function seatSolder(s){     if(gap>0){ sol.forEach(function(m){ try{var p=m.getAbsolutePosition(); m.setAbsolutePosition(new B.Vector3(p.x,p.y,p.z-gap*1.05));}catch(_){} }); }   }catch(_){} }+// a chip sits flush on its board; the fixed-light cast shadow reads as a baked smudge, so drop it+function disableShadows(s){+  try{ s.lights&&s.lights.forEach(function(l){ l.shadowEnabled=false; }); }catch(_){}+  try{ var sg=v.getShadowGenerator&&v.getShadowGenerator(); if(sg&&sg.getShadowMap&&sg.getShadowMap()) sg.getShadowMap().renderList=[]; }catch(_){}+  try{ (s.meshes||[]).forEach(function(m){ m.receiveShadows=false; }); }catch(_){}+} function onReady(s){   seatSolder(s);+  disableShadows(s);   try{ if(MARKS && MARKS.length) addEtch(s, MARKS); }catch(_){}   // layer toggles by part name (fr4 / copper / solder_paste / LQFP-chip)   [].slice.call(document.querySelectorAll('.lyrtog')).forEach(function(b){@@ -41566,6 +41573,11 @@ function onReady(s){   var pb=document.getElementById('play'); if(pb) pb.addEventListener('click',function(){ playLifecycle(s); });   var rb=document.getElementById('reset'); if(rb) rb.addEventListener('click',function(){ try{v.goHome&&v.goHome();}catch(_){} });   if((location.hash||'').indexOf('play')>=0) setTimeout(function(){playLifecycle(s);},500);+  if((location.hash||'').indexOf('low')>=0){ try{var c=v.getCamera(); if(c){c.beta=1.46; c.radius=c.radius*0.32;}}catch(_){} }+  if((location.hash||'').indexOf('demo')>=0){+    try{var c=v.getCamera(); if(c){c.beta=1.08; c.radius=c.radius*0.9;}}catch(_){}+    var reps=6,i=0; (function loop(){ if(i++>=reps)return; playLifecycle(s); setTimeout(loop,7200); })();+  } }  // ---- laser-etch the MPN onto the chip top (world up is +Z) ----@@ -41602,22 +41614,29 @@ function playLifecycle(s){   if(animing||!B.Vector3)return; animing=true;   var pb=document.getElementById('play'); if(pb)pb.disabled=true;   var chip=byName(s,RE.chip), sol=byName(s,RE.solder);+  var solBtn=document.querySelector('.lyrtog[data-mesh="solder"]');   var cb=boundsOf(chip); var lift=cb?Math.max(cb.hi.x-cb.lo.x, cb.hi.y-cb.lo.y)*0.9:0.006;  // ~ one chip-width, along +Z   chip.forEach(function(m){ if(!m.__oz){m.computeWorldMatrix(true); m.__op=m.getAbsolutePosition().clone(); m.__oz=1;} });   function place(f){ chip.forEach(function(m){ try{m.setAbsolutePosition(new B.Vector3(m.__op.x, m.__op.y, m.__op.z+lift*f));}catch(_){} }); }-  // solder stays on the board the whole time; the chip lifts and descends onto it-  place(1);-  var t0=performance.now(), DUR=3200;-  (function step(now){-    var t=(now-t0)/DUR; if(t>1)t=1;-    var a=Math.min(1,t/0.5), ease=1-Math.pow(1-a,3);-    place(1-ease);                                    // chip descends onto the solder-    // reflow: as the leads meet the solder (chip nearly seated), heat glow on solder + chip-    if(t>=0.5&&t<0.8){ var g=Math.sin((t-0.5)/0.3*Math.PI); setEmis(sol,0.95*g,0.32*g,0); setEmis(chip,0.35*g,0.1*g,0); }-    else if(t>=0.8){ var p=Math.sin((t-0.8)/0.2*Math.PI); setEmis(chip,0,0.5*p,0.48*p); setEmis(sol,0,0,0); }   // power-on pulse-    if(t<1) requestAnimationFrame(step);-    else { place(0); setEmis(chip,0,0,0); setEmis(sol,0,0,0); animing=false; if(pb)pb.disabled=false; }-  })(t0);+  function solOn(on){ sol.forEach(function(m){m.setEnabled(on);}); if(solBtn)solBtn.classList.toggle('on',on); }+  // 1) chip starts lifted (so you can see the pads/solder); solder on+  place(1); solOn(true);+  // 2) show the solder layer: toggle it off, then back on+  setTimeout(function(){ solOn(false); }, 1100);+  setTimeout(function(){ solOn(true); }, 2400);+  // 3) lower the chip onto the solder, then reflow heat-glow + power-on pulse+  setTimeout(function(){+    var t0=performance.now(), DUR=1700;+    (function step(now){+      var t=(now-t0)/DUR; if(t>1)t=1;+      var ease=1-Math.pow(1-t,3);+      place(1-ease);+      if(t>=0.55&&t<0.85){ var g=Math.sin((t-0.55)/0.3*Math.PI); setEmis(sol,0.95*g,0.32*g,0); setEmis(chip,0.35*g,0.1*g,0); }+      else if(t>=0.85){ var p=Math.sin((t-0.85)/0.15*Math.PI); setEmis(chip,0,0.5*p,0.48*p); setEmis(sol,0,0,0); }+      if(t<1) requestAnimationFrame(step);+      else { place(0); setEmis(chip,0,0,0); setEmis(sol,0,0,0); animing=false; if(pb)pb.disabled=false; }+    })(t0);+  }, 3500); }  // cross-highlight bus: 3D joins as a listener (per-lead highlight needs named leads)