Firmware Release Candidate v1.20.0.rc7 - Pybytes v0.9.7

## New Features
* Pymesh feature added from Pygo

## Improvments
* Adding do_handshake for non-blocking sockets
* Gracefully handle EAGAIN return of Socket.write in AwsMQTT lib
* make openthread over lora a build-time configuration option (Author: @martijnthe)
* Added factory LTE modem reset option and  method to check UE coverage
* Updated Pybytes lib

## Bug Fixes
* Fix an issue in cleaning up user threads during of soft-reset
* Fix issue causing Device crash when safe booting (CTRL-F) while BLE/Wlan enabled
* LTE module bug fixes
* Fix Makefile bug where SIPY FIPY and LOPY4 excluded secure boot

co-authored by: @Xykon [cehlers@pycom.io](mailto:cehlers@pycom.io) and @martijnthe

Author: Islam Wahdan

esp32/application.mk

@@ -192,11 +192,17 @@ APP_LORA_SRC_C = $(addprefix lora/,\
 	sx1276-board.c \
 	sx1272-board.c \
 	board.c \
+	)
+
+APP_LORA_OPENTHREAD_SRC_C = $(addprefix lora/,\
 	otplat_alarm.c \
 	otplat_radio.c \
 	ot-settings.c \
 	ot-log.c \
-	ot-task.c \
+	)
+
+APP_MOD_MESH_SRC_C = $(addprefix mods/,\
+	modmesh.c \
 	)
 
 APP_LIB_LORA_SRC_C = $(addprefix lib/lora/,\
@@ -305,6 +311,13 @@ ifeq ($(BOARD),$(filter $(BOARD), FIPY GPY))
 OBJ += $(addprefix $(BUILD)/, $(APP_LTE_SRC_C:.c=.o) $(APP_MODS_LTE_SRC_C:.c=.o))
 endif
 
+# add OPENTHREAD code only if flag enabled and for LOPY, LOPY4 and FIPY
+ifeq ($(OPENTHREAD), on)
+ifeq ($(BOARD), $(filter $(BOARD), LOPY LOPY4 FIPY))
+OBJ += $(addprefix $(BUILD)/, $(APP_LORA_OPENTHREAD_SRC_C:.c=.o) $(APP_MOD_MESH_SRC_C:.c=.o))
+endif
+endif # ifeq ($(OPENTHREAD), on)
+
 OBJ += $(addprefix $(BUILD)/, $(APP_MAIN_SRC_C:.c=.o) $(APP_HAL_SRC_C:.c=.o) $(APP_LIB_SRC_C:.c=.o))
 OBJ += $(addprefix $(BUILD)/, $(APP_MODS_SRC_C:.c=.o) $(APP_STM_SRC_C:.c=.o))
 OBJ += $(addprefix $(BUILD)/, $(APP_FATFS_SRC_C:.c=.o) $(APP_LITTLEFS_SRC_C:.c=.o) $(APP_UTIL_SRC_C:.c=.o) $(APP_TELNET_SRC_C:.c=.o))
@@ -325,6 +338,12 @@ ifeq ($(BOARD),$(filter $(BOARD), FIPY GPY))
 SRC_QSTR += $(APP_MODS_LTE_SRC_C)
 endif
 
+ifeq ($(OPENTHREAD), on)
+ifeq ($(BOARD), $(filter $(BOARD), LOPY LOPY4 FIPY))
+SRC_QSTR += $(APP_MOD_MESH_SRC_C)
+endif
+endif # ifeq ($(OPENTHREAD), on)
+
 # Append any auto-generated sources that are needed by sources listed in
 # SRC_QSTR
 SRC_QSTR_AUTO_DEPS +=
@@ -580,20 +599,14 @@ ifeq ($(SECURE), on)
 	$(ECHO) $(SEPARATOR)
 endif #ifeq ($(SECURE), on)
 endif #ifeq ($(TARGET), $(filter $(TARGET), boot boot_app))
-ifeq ($(TARGET), $(filter $(TARGET), app boot_app))
 
 
+ifeq ($(TARGET), $(filter $(TARGET), app boot_app))
 
 $(BUILD)/application.a: $(OBJ)
 	$(ECHO) "AR $@"
 	$(Q) rm -f $@
 	$(Q) $(AR) cru $@ $^
-ifeq ($(BOARD), $(filter $(BOARD), SIPY FIPY LOPY4))
-$(BUILD)/application.elf: $(BUILD)/application.a $(BUILD)/esp32_out.ld
-	$(ECHO) "LINK $@"
-	$(Q) $(CC) $(APP_LDFLAGS) $(APP_LIBS) -o $@
-	$(Q) $(SIZE) $@
-else
 $(BUILD)/application.elf: $(BUILD)/application.a $(BUILD)/esp32_out.ld $(SECURE_BOOT_VERIFICATION_KEY)
 ifeq ($(COPY_IDF_LIB), 1)
 	$(ECHO) "COPY IDF LIBRARIES $@"
@@ -618,7 +631,6 @@ endif #ifeq ($(SECURE), on)
 	$(ECHO) "LINK $@"
 	$(Q) $(CC) $(APP_LDFLAGS) $(APP_LIBS) -o $@
 	$(SIZE) $@
-endif #ifeq ($(BOARD), $(filter $(BOARD), SIPY FIPY LOPY4))
 
 $(APP_BIN): $(BUILD)/application.elf $(PART_BIN) $(ORIG_ENCRYPT_KEY)
 	$(ECHO) "IMAGE $@"

esp32/bootloader/lib/libbootloader_support.a

@@ -222,7 +222,10 @@ def _send_packet(self, packet):
         try:
             if self._sock:
                 written = self._sock.write(packet)
-                print('Packet sent. (Length: %d)' % written)
+                if(written == None):
+                    written = -1
+                else:
+                    print('Packet sent. (Length: %d)' % written)
         except socket.error as err:
             print('Socket send error {0}'.format(err))
             return False

esp32/bootloader/lib/liblog.a

@@ -67,12 +67,11 @@
 
         # Please put your USER code below this line
 
-        # SEND VIRTUAL VALUE
+        # SEND SIGNAL
         # You can currently send Strings, Int32, Float32 and Tuples to pybytes using this method.
-        # Soon you will be able to send Coordinates, Longs, Unsigned numerical types, and more.
-        # pybytes.send_signal(pin, value)
+        # pybytes.send_signal(signalNumber, value)
 
-        # SEND SENSOR DATA THROUGH VIRTUAL PINS
+        # SEND SENSOR DATA THROUGH SIGNALS
         # # If you use a Pysense, some libraries are necessary to access its sensors
         # # you can find them here: https://github.com/pycom/pycom-libraries
         #

esp32/bootloader/lib/libmicro-ecc.a

@@ -102,7 +102,7 @@ def send_signal(self, pin, value):
 
     def send_virtual_pin_value(self, persistent, pin, value):
         print("This function is deprecated and will be removed in the future. Use send_signal(signalNumber, value)")
-        self.send_signal(pin, [value])
+        self.send_signal(pin, value)
 
     def __periodical_pin_callback(self, periodical_pin):
          if (periodical_pin.pin_type == __PERIODICAL_PIN.TYPE_DIGITAL):

esp32/bootloader/lib/libsoc.a

@@ -122,15 +122,15 @@ def connect_lte(self, reconnect=True, check_interval=0.5):
             try:
                 from network import LTE
                 time.sleep(3)
-                print_debug(1, 'LTE init(carrier={})'.format(lte_cfg.get('carrier')))
+                print_debug(1, 'LTE init(carrier={}, cid={})'.format(lte_cfg.get('carrier'), lte_cfg.get('cid', 1)))
                 self.lte = LTE(carrier=lte_cfg.get('carrier'))         # instantiate the LTE object
-                print_debug(1, 'LTE attach(band={}, apn={})'.format(lte_cfg.get('band'), lte_cfg.get('apn')))
-                self.lte.attach(band=lte_cfg.get('band'), apn=lte_cfg.get('apn'))        # attach the cellular modem to a base station
+                print_debug(1, 'LTE attach(band={}, apn={}, type={})'.format(lte_cfg.get('band'), lte_cfg.get('apn'), lte_cfg.get('type')))
+                self.lte.attach(band=lte_cfg.get('band'), apn=lte_cfg.get('apn'), type=lte_cfg.get('type'))        # attach the cellular modem to a base station
                 while not self.lte.isattached():
                     time.sleep(0.25)
                 time.sleep(1)
-                print_debug(1, 'LTE connect(cid={})'.format(lte_cfg.get('cid',1)))
-                self.lte.connect(cid=lte_cfg.get('cid',1))       # start a data session and obtain an IP address
+                print_debug(1, 'LTE connect()')
+                self.lte.connect()       # start a data session and obtain an IP address
                 print_debug(1, 'LTE is_connected()')
                 while not self.lte.isconnected():
                     time.sleep(0.25)