////////////////////////////////////////////////////////////////////////////////
// Name: ESP01-2 //
// Platform: Arduino Uno V3 //
// Created by: HARB, June 2016, GPL copyrights //
// http://robotigs.com/robotigs/includes/parts_header.php?idpart=238 //
// Connect ESP-01 to your Arduino: //
// Yellow = Arduino RX1 = ESP-01 TX //
// Blue = Arduino TX1 = ESP-01 RX //
// While uploading: disconnect yellow AND blue from the Arduino. //
////////////////////////////////////////////////////////////////////////////////
// SET PRECOMPILER OPTIONS *****************************************************
// Include the needed header files for the precompiler, no charge if not used-
//#include <WiFiEsp.h> //https://github.com/bportaluri/WiFiEsp HEADER
// Define precompiler variables ------------------------------------------------
bool ledOnBoardVal = LOW; //You choose HIGH-on or LOW-off for LED_BUILTIN
//Declare variables ------------------------------------------------------------
String inStri = "No answer received";
// Define PINS -----------------------------------------------------------------
//Define the needed header files for the precompiler, no charge if not used --
//END OF PRECOMPILER OPTIONS ---------------------------------------------------
void setup() { //Setup runs once ***********************************************
disable_jtag(); //Disable jtag to free port C, enabled by default JTAG
pinMode(LED_BUILTIN, OUTPUT); //Arduino boards contain an onboard LED
Serial.begin(115200); //Nothing more needed for the SERIAL MONITOR
Serial1.begin(57600); //WIFI ESP01
Serial1.setTimeout(5000); //1000 = default for WIFI ESP01
readESP01(); //Empty serial buffers ESP01
Serial.println("Test if AT system works correctly: "); //General test ESP01
Serial1.println("AT"); //Send the AT command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
//Serial.println("Restart ESP01: "); //Reset to defaults ESP01
//Serial1.println("AT+RST"); //Send the AT command to the ESP01
//readESP01(); //Receive data from the ESP01
//Serial.println(inStri); //Show answer at the SERIAL MONITOR
Serial.println("Print firmware version: "); //Firmware of the ESP01
Serial1.println("AT+GMR"); //Send the AT command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
Serial.println("Lists all valid modes: "); //Modes of Wifi on the ESP01
Serial1.println("AT+CWMODE?"); //Send the AT command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
Serial.println("Lists available Access Points: "); //Networks for ESP01
Serial1.println("AT+CWLAP"); //Send the AT command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
Serial.println("Test if AT system works correctly: "); //General test ESP01
Serial1.println("AT"); //Send the AT command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
Serial.println("Set to slower communication rate: "); //General set ESP01
Serial1.println("AT+UART_DEF=57600,8,1,0,0"); //Send command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
Serial.println("Test if AT system works correctly: "); //General test ESP01
Serial1.println("AT"); //Send the AT command to the ESP01
readESP01(); //Receive data from the ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
}//--(end setup )---------------------------------------------------------------
void loop() { //KEEP ON RUNNING THIS LOOP FOREVER ******************************
toggle_ledOnBoard(); //Toggles the LED_BUILTIN on-board LED
readESP01(); //Empty serial buffers ESP01
Serial.println(inStri); //Show answer at the SERIAL MONITOR
delay(10000); //You can test your own patience here WAIT
} //End of void loop() //KEEP ON RUNNING THIS LOOP FOREVER
void readESP01(void){ //Receive and proces data from the ESP01 *****************
delay(10); //Give some time to answer ESP01
inStri = ""; //Reset receive string WIFI
while (Serial1.available() > 0) { //Check if any request available WIFI
inStri = inStri + Serial1.readString(); //Read incoming characters ESP01
delay(500); //Give some time to retreive data from the net ESP01
} //End of if (Serial1.available() > 0) Entire block has been read ESP01
if (inStri == "") { //Check if any error is made WIFI
inStri = "No answer received"; //Default answer if nothing received WIFI
} //End of if (inStri <> "") Check if any error is made WIFI
} //Exit readESP01 -------------------------------------------------------------
void toggle_ledOnBoard(void){ //Toggles the LED_BUILTIN on-board LED ***********
ledOnBoardVal = !ledOnBoardVal; //Toggle value
digitalWrite(LED_BUILTIN, ledOnBoardVal); //Set Arduino boards onboard LED
} //Exit toggle_ledBin ---------------------------------------------------------
void disable_jtag(void) { //Disable jtag to free port C, enabled by default ****
#if defined(JTD) //Not all AVR controller include jtag
MCUCR |= ( 1 << JTD ); //Write twice to disable
MCUCR |= ( 1 << JTD ); //So stutter once
#endif //End of conditional compiling
} //Exit jtag_disable ----------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
// PIN ALLOCATIONS TABLE ARDUINO MEGA 2560 //
// Board -Atmel- PIN - IDE - Function - External Connection FUNC //
// //
// CONNECTIONS RAILS TOP LEFT: DIGITAL PWM<~> ******************************* //
// SCL - 28 - PC5 -19/A5- ADC5/SCL/PCINT13 - DS1307 SCL orange TWI //
// SDA - 27 - PC4 -18/A4- ADC4/SDA/PCINT12 - DS1307 SDA white TWI //
// AREF - 31 - REF - - AREF - REF //
// 13 PWM - 26 - PB7 - 13 - OC0A/OC1C/PCINT17 - LED Arduino LED_BUILTIN PWM //
// 12 PWM - 18 - PB6 - 12 - OC1B/PCINT16 - PWM //
// 11 PWM - 17 - PB3 - 11 - MOSI/OC2A/PCINT3 - PWM //
// 10 PWM - 16 - PB2 - 10 - SS/OC1B/PCINT2 - PWM //
// 9 PWM - 15 - PB1 - 9 - OC1A/PCINT1 - PWM //
// 8 PWM - 14 - PB0 - 8 - PCINT0/CLK0/ICP1 - DIO //
// //
// CONNECTIONS RAILS TOP MIDDLE: DIGITAL PWM<~> ***************************** //
// 7 PWM - 13 - PD7 - 7 - PCINT23/AIN1 - PWM //
// 6 PWM - 12 - PD6 - 6 - PCINT22/OCA0/AIN0 - PWM //
// 5 PWM - 11 - PD5 - 5 - PCINT21/OC0B/T1 - PWM //
// 4 PWM - 6 - PD4 - 4 - PCINT20/XCK/T0 - PWM //
// 3 PWM - 5 - PD3 - 3 - PCINT19/OC2B/INT1 - PWM //
// 2 PWM - 4 - PD2 - 2 - PCINT18/INT0 - INT //
// 1 TX0 - 3 - PD1 - 1 - PCINT17/TXD - Serial monitor TX0 //
// 0 RX0 - 2 - PD0 - 0 - PCINT16/RCD - Serial Monitor RC0 //
// //
// CONNECTIONS RAILS TOP RIGHT: DIGITAL PWM<~> ****************************** //
// 14 TX3 - 13 - PD7 - 7 - PCINT23/AIN1 - Activ buzzer orange DIO //
// 15 RX3 - 12 - PD6 - 6 - PCINT22/OCA0/AIN0 - PWM //
// 16 TX2 - 11 - PD5 - 5 - PCINT21/OC0B/T1 - TX2 //
// 17 RX2 - 6 - PD4 - 4 - PCINT20/XCK/T0 - RX2 //
// 18 TX1 - 5 - PD3 - 3 - PCINT19/OC2B/INT1 - Transmit to ESP01 blue INT //
// 19 RX1 - 4 - PD2 - 2 - PCINT18/INT0 - Rec from ESP01 yellow INT //
// 20 SDA - 3 - PD1 - 1 - PCINT17/TXD - TWI //
// 21 SCL - 2 - PD0 - 0 - PCINT16/RCD - TWI //
// //
// CONNECTIONS RAILS BOTTOM LEFT: POWER ************************************* //
// 5V - 7 - VCC - - VCC - VCC //
// RES - 1 - RES - - PCINT14/RESET - RES //
// 3.3V - - - - - //
// 5V - - - - - //
// GND - - - - - //
// GND - - - - - //
// Vin - - - - - //
// //
// CONNECTIONS RAILS BOTTOM CENTER: ANALOG IN ******************************* //
// A0 - 23 - PC0 -A0/14- ADC0/PCINT8 - ADC //
// A1 - 24 - PC1 -A1/15- ADC1/PCINT9 - ADC //
// A2 - 25 - PC2 -A2/16- ADC2/PCINT10 - ADC //
// A3 - 26 - PC3 -A3/17- ADC3/PCINT12 - ADC //
// A4 - 27 - PC4 -A4/18- ADC4/SDA/PCINT12 - TWI //
// A5 - 28 - PC5 -A5/19- ADC5/SCL/PCINT13 - TWI //
// //
// CONNECTIONS RAILS BOTTOM RIGHT: ANALOG IN ******************************** //
// A08 - 89 - PK0 - - ADC1 4/PCINT? - ADC //
// A09 - 88 - PK1 - - ADC15/PCINT? - ADC //
// A10 - 87 - PK2 - - ADC14/PCINT? - ADC //
// A11 - 86 - PK3 - - ADC15/PCINT? - ADC //
// A12 - 85 - PK4 - - ADC14/PCINT? - ADC //
// A13 - 84 - PK5 - - ADC15/PCINT? - ADC //
// A14 - 83 - PK6 - - ADC14/PCINT22 - ADC //
// A15 - 82 - PK7 - - ADC15/PCINT23 - LDR purple ADC //
// //
// CONNECTIONS RAILS QUER RIGHT ********************************************* //
// Board -Atmel- PIN - IDE - Function - External Connection FUNC //
// 32 - 58 - PC5 - - DIO - DIO //
// 44 - 40 - PL5 - - OC5C - 3 Color led Red PWM //
// 45 - 39 - PL4 - - OC5B - 3 Color led Blue PWM //
// 46 - 38 - PL3 - - OC5A - 3 Color led Green PWM //
// 47 - 37 - PL2 - - T5 - DHT22 one-wire white DIO //
// 48 - 36 - PL1 - - ICP5 - Relais 1 purple DIO //
// 49 - 35 - PL0 - - ICP4 - DIO //
// 50 - 22 - PB3 - - MISO/PCINT3 - SPI //
// 51 - 21 - PB2 - - MOSI/PCINT2 - SPI //
// 52 - 20 - PB1 - - SCK/PCINT1 - SPI //
// 53 - 19 - PB1 - - SS/PCINT0 - SPI //
// 54 - - GND - - GND - GND //
// 55 - - GND - - GND - GND //
////////////////////////////////////////////////////////////////////////////////
//345678911234567892123456789312345678941234567895123456789612345678971234567898
// EEPROM MEMORY MAP: //
// Start End Number Description //
// 0000 0000 1 Never use this memory location to be AVR compatible //
////////////////////////////////////////////////////////////////////////////////
//345678911234567892123456789312345678941234567895123456789612345678971234567898
////////////////////////////////////////////////////////////////////////////////
// FUSES (can always be altered by using the STK500) //
// On-Chip Debug Enabled: off (OCDEN=0) //
// JTAG Interface Enabled: off (JTAGEN=0) //
// Preserve EEPROM mem through the Chip Erase cycle: On (EESAVE = 0) //
// Boot Flash section = 2048 words, Boot startaddr=$3800 (BOOTSZ=00) //
// Boot Reset vector Enabled, default address=$0000 (BOOTSTR=0) //
// CKOPT fuse (operation dependent of CKSEL fuses (CKOPT=0) //
// Brown-out detection level at VCC=2,7V; (BODLEVEL=0) //
// Ext. Cr/Res High Freq.; Start-up time: 16K CK + 64 ms (CKSEL=1111 SUT=11) //
// LOCKBITS (are dangerous to change, since they cannot be reset) //
// Mode 1: No memory lock features enabled //
// Application Protect Mode 1: No lock on SPM and LPM in Application Section //
// Boot Loader Protect Mode 1: No lock on SPM and LPM in Boot Loader Section //
////////////////////////////////////////////////////////////////////////////////