fixes to sw spi. adafruit 31855 now works with sw spi and autodetect of it. also fixed ziplogs to use cat.

lib/oven.py

@@ -7,7 +7,7 @@ import config
 import os
 import digitalio
 import busio
-import bitbangio
+import adafruit_bitbangio as bitbangio
 import statistics
 
 log = logging.getLogger(__name__)

requirements.txt

@@ -10,6 +10,9 @@ requests
 adafruit-circuitpython-max31855
 adafruit-circuitpython-max31856
 
+# for folks using sw spi (bit banging)
+adafruit-circuitpython-bitbangio
+
 # untested - for PT100 platinum thermocouples
 #adafruit-circuitpython-max31865
 

test-thermocouple.py

@@ -4,6 +4,7 @@ from digitalio import DigitalInOut
 import time
 import datetime
 import busio
+import adafruit_bitbangio as bitbangio
 
 try:
     import board
@@ -43,6 +44,7 @@ if spi is None:
     print("Software SPI selected for reading thermocouple")
 
 cs = DigitalInOut(config.spi_cs)
+cs.switch_to_output(value=True)
 sensor = None
 
 print("\nboard: %s" % (board.board_id))
@@ -62,7 +64,6 @@ print("    config.spi_miso = %s BCM pin" % (config.spi_miso))
 print("    config.spi_cs   = %s BCM pin\n" % (config.spi_cs))
 print("Degrees displayed in %s\n" % (config.temp_scale))
 
-
 while(True):
    time.sleep(1)
    temp = sensor.temperature

ziplogs

@@ -3,7 +3,7 @@
 echo "----------------------------------------------"
 echo "| Writing all kiln logs to ./kiln.logs.gz... |"
 echo "----------------------------------------------"
-zgrep --no-filename -E "(INFO|WARN|ERROR) (oven|kiln-controller|gevent)" /var/log/* 2>/dev/null|strings|sort|uniq|gzip > kiln.logs.gz
+zcat -f /var/log/* 2>/dev/null|strings|grep -E "(INFO|WARN|ERROR) (oven|kiln-controller|gevent)"|sort|uniq|gzip > kiln.logs.gz
 
 ls -la kiln.logs.gz