Try another fix

compLib/Spi.py

@@ -4,6 +4,7 @@ import multiprocessing
 from enum import IntEnum
 import time
 import sys
+import random
 
 from compLib.LogstashLogging import Logging
 
@@ -17,6 +18,7 @@ SPI_HEALTH = True
 spi_found = importlib.util.find_spec("spidev") is not None
 spi =  None
 spi_lock = multiprocessing.Lock()
+last_spi_call = time.time()
 if spi_found:
     import spidev
     spi = spidev.SpiDev()
@@ -113,7 +115,7 @@ class Spi(object):
     def transfer(tx_buffer: list):
         if not spi_found:
             return [] * SPI_BUFFER_SIZE
-        
+
         write_reg = tx_buffer[1]
         tx_buffer_copy = tx_buffer.copy()
 
@@ -123,9 +125,12 @@ class Spi(object):
             
         if rx_buffer[1] != write_reg:
             Logging.get_logger().error(f"Warning! SPI error during read/write of register {write_reg}! Retrying automagically")
-            time.sleep(0.01)
+            time.sleep(random.uniform(0.0, 0.1))
             return Spi.transfer(tx_buffer_copy)
 
+        global last_spi_call
+        last_spi_call = time.time()
+
         return rx_buffer
 
     @staticmethod
@@ -204,8 +209,9 @@ class Spi(object):
     @staticmethod
     def health_check_loop():
         while SPI_HEALTH:
-            Spi.health_check()
-            time.sleep(0.75)
+            if last_spi_call + 0.75 < time.time():
+                Spi.health_check()
+            time.sleep(0.5)
 
     @staticmethod
     def get_version():