pid demo progress

firmware/config/engines/custom_engine.cpp

@@ -951,9 +951,16 @@ function onTick()
   local bias = curve(biasCurveIndex, target)
   print('bias ' .. bias)
 
-  print('pid output ' .. output)
-  print('')
+  local duty = (bias + output) / 100
+  isPositive = duty > 0;
+  pwmValue = isPositive and duty or -duty
+  setPwmDuty(0, pwmValue)
 
+  dirValue = isPositive and 1 or 0;
+  setPwmDuty(1, dirValue)
+
+  print('pwm ' .. pwmValue .. ' dir ' .. dirValue)
+  print('')
 end
 				)";
 	strncpy(config->luaScript, script, efi::size(config->luaScript));