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interpreter.ino
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interpreter.ino
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#include <EEPROM.h>
const byte numChars = 48; // Max qty of bytes we can receive
char receivedChars[numChars]; // an array to store the received data
boolean newData = false;
struct config_t {
float float1 = 1.0;
char char1[32] = "";
unsigned long integer1 = 300; // 5 minutes
} configuration;
//##############################################################
void setup() {
Serial.begin(115200);
Serial.print(F("\n\n***\r\n\r\n"));
Serial.println(ESP.getResetReason());
Serial.print(F("\n\n***\n\n"));
Serial.print(F("Read EEPROM..."));
EEPROM.begin(512); //Allocate 512 bytes for EEPROM storage
//Check if the configuration has been stored in EEPROM
byte e1 = EEPROM.read(0);
byte e2 = EEPROM.read(1);
if ((e1 != 214) && (e2 != 26)){
Serial.println(F("Not configured!"));
EEPROM.write(0,214);
EEPROM.write(1,26);
EEPROM.commit();
Serial.print(F("Write defaults.."));
reset_config();
} else {
EEPROM.get(2,configuration);
Serial.println(F("Done."));
}
}
//##############################################################
void loop() {
recvWithEndMarker(); // Check for serial RX data
HaveNewData(); // Process any received serial data
delay(1);
}
//==============================================================
void store_config(){
Serial.print(F("Writing config..."));
EEPROM.put(2,configuration);
EEPROM.commit();
Serial.println(F("Done."));
yield();
}
// =============================================================
// Received command must be terminated with a carriage return
void recvWithEndMarker() {
static byte ndx = 0;
char endMarker = '\r';
char rc;
while (Serial.available() > 0 && newData == false) {
rc = Serial.read();
if (rc != endMarker) {
receivedChars[ndx] = rc;
ndx++;
if (ndx >= numChars) {
ndx = numChars - 1;
}
}
else {
receivedChars[ndx] = '\0'; // terminate the string
ndx = 0;
newData = true;
}
}
}
void HaveNewData() {
if (newData == true) {
Serial.print("CMD-> ");
Serial.println(receivedChars);
newData = false;
command_interperter(receivedChars);
}
}
//================================================================
void command_interperter(char* payload){
// ---------------------------------
if (strcmp(payload, "help") == 0)
{
print_help();
return;
}
if (strcmp(payload, "reset") == 0)
{
reset_config();
return;
}
// None of the above commands were received, so parse the string for
// a command/value
//Micro command parser
char v[12]; // The maximum number of characters for a command
char k[12]; // The maximum number of characters for the value
char *sp = strchr(payload, 61); //61 is INT value of =
if (sp != NULL)
{
strcpy(v, sp + 1);
*sp = '\0';
strcpy(k, payload);
// ---------------------------------
if (strcmp(k, "float1") == 0)
{
configuration.float1 = atof(v);
Serial.print(F("float1 = "));
Serial.println(configuration.float1, 6);
store_config();
return;
}
// ---------------------------------
if (strcmp(k, "integer1") == 0)
{
configuration.integer1 = atol(v);
Serial.print(F("integer1 = "));
Serial.println(configuration.integer1);
store_config();
return;
}
// ---------------------------------
if (strcmp(k, "char1") == 0)
{
strcpy( configuration.char1, v );
Serial.print(F("char11 = "));
Serial.println(configuration.char1);
store_config();
return;
}
// ---------------------------------
}
Serial.println(F("[OS] Syntax error!"));
}
// =============================================================
void reset_config(void){
Serial.print("Reset config: ");
configuration.float1 = 1.0;
configuration.integer1 = 0;
strcpy( configuration.char1, "" );
store_config();
}
// =============================================================
void print_help(){
Serial.println(F("################"));
Serial.println(F("Help"));
Serial.println(F("----------------"));
Serial.println(F("Available commands..."));
Serial.println(F("help"));
Serial.println(F("float1=<value>"));
Serial.println(F("integer1=<value>"));
Serial.println(F("char1=<value>"));
Serial.println(F("----------------"));
Serial.println(F("Current settings"));
Serial.print("float1: ");
Serial.println(configuration.float1, 6);
Serial.print("integer1: ");
Serial.println(configuration.integer1);
Serial.print("char1: ");
Serial.println(configuration.char1);
Serial.println();
Serial.println(F("Note: Commands have NO spaces"));
Serial.println(F("Example"));
Serial.println(F("float1=10.235"));
Serial.println();
}