timer changed to loboris/MicroPython_ESP32_psRAM_LoBo/wiki/timer

Author: junhuanchen

13.system/timer.py

@@ -0,0 +1,20 @@
+import machine
+
+tcounter = 0
+
+p1 = machine.Pin(18)
+p1.init(p1.OUT)
+p1.value(1)
+
+def tcb(timer):
+    global tcounter
+    if tcounter & 1:
+        p1.value(0)
+    else:
+        p1.value(1)
+    tcounter += 1
+    if (tcounter % 10000) == 0:
+        print("[tcb] timer: {} counter: {}".format(timer.timernum(), tcounter))
+
+t1 = machine.Timer(2)
+t1.init(period=20, mode=t1.PERIODIC, callback=tcb)