Initial test

makefile

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+#====================================================================================
+# makeESPArduino
+#
+# A makefile for ESP8286 Arduino projects.
+# Edit the contents of this file to suit your project
+# or just include it and override the applicable macros.
+#
+# License: GPL 2.1
+# General and full license information is available at:
+#    https://github.com/plerup/makeEspArduino
+#
+# Copyright (c) 2016 Peter Lerup. All rights reserved.
+#
+#====================================================================================
+
+#====================================================================================
+# User editable area
+#====================================================================================
+
+#=== Project specific definitions: sketch and list of needed libraries
+SKETCH ?= $(HOME)/makeEspArduino/WiFi_Temp_Logger/wifi_lux_sensor.ino
+LIBS ?= \
+		$(ESP_LIBS)/ESP8266WiFi \
+        $(ESP_LIBS)/Wire \
+
+# Esp8266 Arduino git location
+ESP_ROOT ?= $(HOME)/esp8266
+# Output directory
+BUILD_ROOT ?= $(HOME)/makeEspArduino/WiFi_Lux_sensor/tmp/$(MAIN_NAME)
+
+# Board definitions
+FLASH_SIZE ?= 4M
+FLASH_MODE ?= dio
+FLASH_SPEED ?= 40
+FLASH_LAYOUT ?= eagle.flash.4m.ld
+
+# Upload parameters
+UPLOAD_SPEED ?= 230400
+UPLOAD_PORT ?= /dev/cu.usbserial-A104VFS5
+UPLOAD_VERB ?= -v
+UPLOAD_RESET ?= ck
+
+# OTA parameters
+ESP_ADDR ?= ESP_DA6ABC
+ESP_PORT ?= 8266
+ESP_PWD ?= 123
+
+# HTTP update parameters
+HTTP_ADDR ?= ESP_DA6ABC
+HTTP_URI ?= /update
+HTTP_PWD ?= user
+HTTP_USR ?= password
+
+#====================================================================================
+# The area below should normally not need to be edited
+#====================================================================================
+
+MKESPARD_VERSION = 1.0.0
+
+START_TIME := $(shell perl -e "print time();")
+# Main output definitions
+MAIN_NAME = $(basename $(notdir $(SKETCH)))
+MAIN_EXE = $(BUILD_ROOT)/$(MAIN_NAME).bin
+MAIN_ELF = $(OBJ_DIR)/$(MAIN_NAME).elf
+SRC_GIT_VERSION = $(call git_description,$(dir $(SKETCH)))
+
+# esp8266 arduino directories
+ESP_GIT_VERSION = $(call git_description,$(ESP_ROOT))
+ESP_LIBS = $(ESP_ROOT)/libraries
+TOOLS_ROOT = $(ESP_ROOT)/tools
+TOOLS_BIN = $(TOOLS_ROOT)/xtensa-lx106-elf/bin
+SDK_ROOT = $(ESP_ROOT)/tools/sdk
+
+# Directory for intermedite build files
+OBJ_DIR = $(BUILD_ROOT)/obj
+OBJ_EXT = .o
+DEP_EXT = .d
+
+# Compiler definitions
+CC = $(TOOLS_BIN)/xtensa-lx106-elf-gcc
+CPP = $(TOOLS_BIN)/xtensa-lx106-elf-g++
+LD =  $(CC)
+AR = $(TOOLS_BIN)/xtensa-lx106-elf-ar
+ESP_TOOL = $(TOOLS_ROOT)/esptool/esptool
+OTA_TOOL = $(TOOLS_ROOT)/espota.py
+HTTP_TOOL = curl
+
+INCLUDE_DIRS += $(SDK_ROOT)/include $(SDK_ROOT)/lwip/include $(CORE_DIR) $(ESP_ROOT)/variants/generic $(OBJ_DIR)
+C_DEFINES = -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -DF_CPU=80000000L -DARDUINO=10605 -DARDUINO_ESP8266_ESP01 -DARDUINO_ARCH_ESP8266 -DESP8266
+C_INCLUDES = $(foreach dir,$(INCLUDE_DIRS) $(USER_DIRS),-I$(dir))
+C_FLAGS ?= -c -Os -g -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -std=gnu99 -ffunction-sections -fdata-sections
+CPP_FLAGS ?= -c -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11 -MMD -ffunction-sections -fdata-sections
+S_FLAGS ?= -c -g -x assembler-with-cpp -MMD
+LD_FLAGS ?= -g -w -Os -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static -L$(SDK_ROOT)/lib -L$(SDK_ROOT)/ld -T$(FLASH_LAYOUT) -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,register_chipv6_phy
+LD_STD_LIBS ?= -lm -lgcc -lhal -lphy -lnet80211 -llwip -lwpa -lmain -lpp -lsmartconfig -lwps -lcrypto -laxtls
+# stdc++ used in later versions of esp8266 Arduino
+LD_STD_CPP = lstdc++
+ifneq ($(shell grep $(LD_STD_CPP) $(ESP_ROOT)/platform.txt),)
+	LD_STD_LIBS += -$(LD_STD_CPP)
+endif
+
+# Core source files
+CORE_DIR = $(ESP_ROOT)/cores/esp8266
+CORE_SRC = $(shell find $(CORE_DIR) -name "*.S" -o -name "*.c" -o -name "*.cpp")
+CORE_OBJ = $(patsubst %,$(OBJ_DIR)/%$(OBJ_EXT),$(notdir $(CORE_SRC)))
+CORE_LIB = $(OBJ_DIR)/core.ar
+
+# User defined compilation units
+USER_SRC = $(SKETCH) $(shell find $(LIBS) -name "*.S" -o -name "*.c" -o -name "*.cpp")
+# Object file suffix seems to be significant for the linker...
+USER_OBJ = $(subst .ino,.cpp,$(patsubst %,$(OBJ_DIR)/%$(OBJ_EXT),$(notdir $(USER_SRC))))
+USER_DIRS = $(sort $(dir $(USER_SRC)))
+
+VPATH += $(shell find $(CORE_DIR) -type d) $(USER_DIRS)
+
+# Automatically generated build information data
+# Makes the build date and git descriptions at the actual build
+# event available as string constants in the program
+BUILD_INFO_H = $(OBJ_DIR)/buildinfo.h
+BUILD_INFO_CPP = $(OBJ_DIR)/buildinfo.cpp
+BUILD_INFO_OBJ = $(BUILD_INFO_CPP)$(OBJ_EXT)
+
+$(BUILD_INFO_H): | $(OBJ_DIR)
+	echo "typedef struct { const char *date, *time, *src_version, *env_version;} _tBuildInfo; extern _tBuildInfo _BuildInfo;" >$@
+
+# Utility functions
+git_description = $(shell git -C  $(1) describe --tags --always --dirty 2>/dev/null)
+time_string = $(shell perl -e 'use POSIX qw(strftime); print strftime($(1), localtime());')
+MEM_USAGE = \
+  'while (<>) { \
+      $$r += $$1 if /^\.(?:data|rodata|bss)\s+(\d+)/;\
+		  $$f += $$1 if /^\.(?:irom0\.text|text|data|rodata)\s+(\d+)/;\
+	 }\
+	 print "\nMemory usage\n";\
+	 print sprintf("  %-6s %6d bytes\n" x 2 ."\n", "Ram:", $$r, "Flash:", $$f);'
+
+# Build rules
+$(OBJ_DIR)/%.cpp$(OBJ_EXT): %.cpp $(BUILD_INFO_H)
+	echo  $(<F)
+	$(CPP) $(C_DEFINES) $(C_INCLUDES) $(CPP_FLAGS) $< -o $@
+
+$(OBJ_DIR)/%.cpp$(OBJ_EXT): %.ino $(BUILD_INFO_H)
+	echo  $(<F)
+	$(CPP) -x c++ -include $(CORE_DIR)/Arduino.h $(C_DEFINES) $(C_INCLUDES) $(CPP_FLAGS) $< -o $@
+
+$(OBJ_DIR)/%.c$(OBJ_EXT): %.c
+	echo  $(<F)
+	$(CC) $(C_DEFINES) $(C_INCLUDES) $(C_FLAGS) $< -o $@
+
+$(OBJ_DIR)/%.S$(OBJ_EXT): %.S
+	echo  $(<F)
+	$(CC) $(C_DEFINES) $(C_INCLUDES) $(S_FLAGS) $< -o $@
+
+$(CORE_LIB): $(CORE_OBJ)
+	echo  Creating core archive
+	rm -f $@
+	$(AR) cru $@  $^
+
+BUILD_DATE = $(call time_string,"%Y-%m-%d")
+BUILD_TIME = $(call time_string,"%H:%M:%S")
+
+$(MAIN_EXE): $(CORE_LIB) $(USER_OBJ)
+	echo Linking $(MAIN_EXE)
+	echo "  Versions: $(SRC_GIT_VERSION), $(ESP_GIT_VERSION)"
+	echo 	'#include <buildinfo.h>' >$(BUILD_INFO_CPP)
+	echo '_tBuildInfo _BuildInfo = {"$(BUILD_DATE)","$(BUILD_TIME)","$(SRC_GIT_VERSION)","$(ESP_GIT_VERSION)"};' >>$(BUILD_INFO_CPP)
+	$(CPP) $(C_DEFINES) $(C_INCLUDES) $(CPP_FLAGS) $(BUILD_INFO_CPP) -o $(BUILD_INFO_OBJ)
+	$(LD) $(LD_FLAGS) -Wl,--start-group $^ $(BUILD_INFO_OBJ) $(LD_STD_LIBS) -Wl,--end-group -L$(OBJ_DIR) -o $(MAIN_ELF)
+	$(ESP_TOOL) -eo $(ESP_ROOT)/bootloaders/eboot/eboot.elf -bo $@ -bm $(FLASH_MODE) -bf $(FLASH_SPEED) -bz $(FLASH_SIZE) -bs .text -bp 4096 -ec -eo $(MAIN_ELF) -bs .irom0.text -bs .text -bs .data -bs .rodata -bc -ec
+	$(TOOLS_BIN)/xtensa-lx106-elf-size -A $(MAIN_ELF) | perl -e $(MEM_USAGE)
+	perl -e 'print "Build complete. Elapsed time: ", time()-$(START_TIME),  " seconds\n\n"'
+
+upload: all
+	$(ESP_TOOL) -v -cd ck -cb $(UPLOAD_SPEED) -cp $(UPLOAD_PORT) -ca 0x00000 -cf $(MAIN_EXE)
+
+ota: all
+	$(OTA_TOOL) -i $(ESP_ADDR) -p $(ESP_PORT) -a $(ESP_PWD) -f $(MAIN_EXE)
+
+http: all
+	$(HTTP_TOOL) --verbose -F image=@$(MAIN_EXE) --user $(HTTP_USR):$(HTTP_PWD)  http://$(HTTP_ADDR)$(HTTP_URI)
+	echo "\n"
+
+clean:
+	echo Removing all intermediate build files...
+	rm  -f $(OBJ_DIR)/*
+
+$(OBJ_DIR):
+	mkdir -p $(OBJ_DIR)
+
+.PHONY: all
+all: $(OBJ_DIR) $(BUILD_INFO_H) $(MAIN_EXE)
+
+
+# Include all available dependencies
+-include $(wildcard $(OBJ_DIR)/*$(DEP_EXT))
+
+.DEFAULT_GOAL = all
+
+ifndef VERBOSE
+# Set silent mode as default
+MAKEFLAGS += --silent
+endif

wifi_lux_sensor.ino

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+#include <ESP8266WiFi.h>
+#include <Wire.h> 
+
+const char* ssid = "Hemnet3";
+const char* password = "";
+
+WiFiClient espClient;
+
+void connectWifi() {
+  Serial.print("Connecting to ");
+  Serial.println(ssid);
+    // temporary fix until SDK 1.5.4 is used
+  WiFi.persistent(false);
+  WiFi.mode(WIFI_OFF);
+  WiFi.mode(WIFI_STA);
+    // temporary fix end
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+      delay(1000);
+      Serial.print(WiFi.status());
+      Serial.print(".");
+  }
+  
+  Serial.println("");
+  Serial.print("Connected with IP: "),
+  Serial.println(WiFi.localIP());
+}
+
+void setup() {
+  Serial.begin(115200); //Opens USB-Serial connection for terminal
+  delay(5000);
+  Serial.print("Serial interface is ready\r\n");
+  connectWifi();
+  Wire.begin(4, 5); // sda on pin D2, scl on pin D1
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  byte error, address;
+  int nDevices;
+  
+  Serial.print("WiFi heartbeat - ms since boot: ");
+  Serial.print(millis());
+  Serial.println();
+  Serial.println("Scanning i2c devices... ");
+
+  nDevices = 0; 
+  for(address = 1; address < 127; address++) {
+    Wire.beginTransmission(address);
+    error = Wire.endTransmission();
+
+    if (error == 0) {
+      Serial.print("I2C device found at address 0x");
+      if (address<16)
+        Serial.print("0");
+      Serial.print(address,HEX);
+      Serial.println("  !");
+ 
+      nDevices++;
+    }
+    else if (error==4) {
+      Serial.print("--Unknown error at address 0x");
+      if (address<16)
+        Serial.print("0");
+      Serial.println(address,HEX);
+    }    
+  }
+  if (nDevices == 0)
+    Serial.println("--No I2C devices found\n");
+  else
+    Serial.println("done\n");
+ 
+  delay(1000);
+  
+}