====== Arduiono IDE for ESP8266 ====== ===== Basic Arduino functions and classes ===== ===== Standard Libs ===== ==== Wire ==== content ==== EEPROM ==== EEPROM functionality is similar to the standard Arduino library with the exception of having to declare memory size and committing writes. ===example=== #include void setup() { //Init EEPROM, note the size requirement. I believe 4096B is the maximum available. //You could use a smaller amount/size. EEPROM.begin(4096); for( int i = 0; i < 4096; i++ ) { EEPROM.write(i,i); } EEPROM.commit(); //note here the commit! } NOTE: EEPROMAnything can be used with one simple modification. Find the EEPROMAnything.h and add EEPROM.commit(); after the EEPROM.write(ee++, *p++); EEPROMAnything provides nice functionality to save any type of variable including structers. #include struct eepromInfoType { uint8_t MyUnsigned8BitInt; char MyCharArray[25] } myStructOriginal, myStructCopy; void setup() { myStructOriginal.MyUnsigned8BitInt = 0; //assign some value strcpy( myStructOriginal.MyCharArray, "Less than 25 chars" ); //assign some value EEPROM_writeAnything( 0, myStructOriginal ); //remember to modify EEPROM_writeAnything by adding .commit(). //Lets read it back EEPROM_readAnything( 0, myStructCopy ); } void loop() { //nothing here } ===== ESP Specific Libs ===== ==== SDK-API (1.0.0) ==== If you want to use some the the SDK-API functions have a look at this link http://bbs.espressif.com/viewtopic.php?f=5&t=286 The Documentation can be found here http://bbs.espressif.com/download/file.php?id=253 To use the API you have to include some header-files in your sketch. Below is a quick example of using the RTC-Memory-Write API to make a counter persistent even after using sleep + the following reset. #include // Include API-Headers extern "C" { #include "ets_sys.h" #include "os_type.h" #include "osapi.h" #include "mem.h" #include "user_interface.h" #include "cont.h" } // Counter uint32_t i = 0; // Temporary buffer uint32_t b = 0; void setup() { Serial.begin(115200); // Call API-Function system_deep_sleep_set_option(4); // Call API-Function system_rtc_mem_read(64,&b,4) << endl; // Check if the value is within expected range if(b < 100000) i = b; } int lap = 0; void loop() { for(int c = 0; c < 50; c++) { Serial << i++ << " " << lap << endl; delay(10); } // Call API-Function system_rtc_mem_write(64,&i,4) << endl; delay(1000); // Call API-Function system_deep_sleep(10000000); lap++; } ==== ESP8266WiFi ==== **Connect with static IP** If you experience problems regarding DNS resolving check out https://github.com/esp8266/Arduino/issues/369 #include #include #include const char* ssid = "....."; const char* password = "....."; void setup(void) { Serial.begin(115200); // Connect to WiFi network WiFi.begin(ssid, password); //set static ip part WiFi.config(IPAddress(192,168,1,118), IPAddress(192,168,1,1), IPAddress(255,255,255,0)); // Wait for connection while (WiFi.status() != WL_CONNECTED) { delay(200); } Serial.println(WiFi.localIP()); } ==== ESP8266mDNS ==== content ==== ESP8266WebServer ==== content