attempt to reduce ghosting with gpio config. did not help.

camp_pico.py

@@ -699,8 +699,7 @@ if True:#__name__ == "__main__":
     from splash import SplashScreen
     from manager import Manager
 
-    #url = "http://ubabot.frubar.net"
-    url = "http://xythobuz.de"
+    url = "http://ubabot.frubar.net"
 
     import util
     t = util.getTarget()

mapper.py

@@ -138,7 +138,7 @@ class MapperReduceBrightness(MapperNull):
         if (now > morning) and (now < night):
             self.factor = 1.0
         else:
-            self.factor = 0.25
+            self.factor = 0.42
 
     def adjust(self, color):
         return (int(color[0] * self.factor), int(color[1] * self.factor), int(color[2] * self.factor))

net.py

@@ -48,7 +48,7 @@ class CheckHTTP:
             return
 
         now = time.time()
-        if (self.response == None) or ((now - self.start) >= self.refresh):
+        if (self.response == None) or ((now - self.start) >= self.refresh) or (now < self.start):
             self.start = now
             try:
                 print("Refreshing " + self.url)

pico.py

@@ -13,7 +13,7 @@
 import interstate75
 from mapper import MapperReduceBrightness
 import time
-from machine import Pin
+from machine import Pin, mem32
 
 class PicoMatrix:
     def __init__(self, w = 32, h = 32):
@@ -38,6 +38,18 @@ class PicoMatrix:
         self.ledTime = time.time()
         self.led = Pin("LED", Pin.OUT)
 
+        # For all matrix pins r0, g0, b0, r1, g1, b1, a, b, c, d, e:
+        # reduce drive-strength to minimum 2mA and set slew to slow.
+        # Attempt to reduce ghosting on display. Not really helping :(
+        io_base = 0x4001c000
+        io_off = 0x04
+        io_inc = 0x04
+        for p in range(0, 11):
+            reg = io_base + (p * io_inc) + io_off
+            val = mem32[reg]
+            val = val & 0xFFFFFFCE
+            mem32[reg] = val
+
         self.loop_start() # initialize with blank image for ScrollText constructor
 
     def loop_start(self):