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reviewed bridge example 

added BridgeClass::writeMessage(const String& str)
This commit is contained in:
Federico Fissore 2013-06-20 16:32:12 +02:00
parent ed672deb74
commit 4ec08ef6cc
3 changed files with 103 additions and 69 deletions
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4
libraries/Bridge/Bridge.cpp
View File

@ -68,6 +68,10 @@ void BridgeClass::writeMessage(const uint8_t *buff, unsigned int size) {
transfer(cmd, 1, buff, size, NULL, 0);
}
void BridgeClass::writeMessage(const String& str) {
writeMessage((uint8_t*) str.c_str(), str.length());
}
unsigned int BridgeClass::messageAvailable() {
uint8_t tmp[] = {'n'};
uint8_t res[2];

1
libraries/Bridge/Bridge.h
View File

@ -30,6 +30,7 @@ public:
// Methods to handle mailbox messages
unsigned int readMessage(uint8_t *buffer, unsigned int size);
void writeMessage(const uint8_t *buffer, unsigned int size);
void writeMessage(const String& str);
unsigned int messageAvailable();
// Methods to handle key/value datastore

167
libraries/Bridge/examples/Bridge/Bridge.ino
View File

@ -17,88 +17,117 @@ void loop() {
delay(100); // Poll every 0.100s
}
void process(uint8_t buff[], int l) {
// "DWppv" -> digitalWrite(pp, v)
// "DRpp" -> digitalRead(pp) -> "Dpp0" / "Dpp1"
// "AWppvvv" -> analogWrite(pp, vvv)
// "ARpp" -> analogRead(pp) -> "App0000" - "App1023"
// "PIpp" -> pinMode(pp, INPUT)
// "POpp" -> pinMode(pp, OUTPUT)
void process(uint8_t buff[], int length) {
// "digital/13/1" -> digitalWrite(13, HIGH)
// "digital/13" -> digitalRead(13)
// "analog/2/123" -> analogWrite(2, 123)
// "analog/2" -> analogRead(2)
// "mode/13/input" -> pinMode(13, INPUT)
// "mode/13/output" -> pinMode(13, OUTPUT)
// Sanity check
if (l<4 || l>7)
return;
if (buff[2]<'0' || buff[2]>'9')
return;
if (buff[3]<'0' || buff[3]>'9')
return;
char cmd0 = buff[0];
char cmd1 = buff[1];
int pin = (buff[2]-'0')*10 + (buff[3]-'0');
if (pin<0 || pin>13)
if (length < 9 || length > 14)
return;
// Command selection
if (l==5 && cmd0=='D' && cmd1=='W') {
char c = buff[4];
if (c=='0' || c=='1') {
digitalWrite(pin, c-'0');
reportDigitalRead(pin, true, true);
}
} else if (l==4 && cmd0=='D' && cmd1=='R') {
reportDigitalRead(pin, true, true);
} else if (l==7 && cmd0=='A' && cmd1=='W') {
analogWrite(pin, buff[4]);
reportAnalogRead(pin);
} else if (l==4 && cmd0=='A' && cmd1=='R') {
reportAnalogRead(pin);
} else if (l==4 && cmd0=='P' && cmd1=='I') {
pinMode(pin, INPUT);
reportPinMode(pin, INPUT);
} else if (l==4 && cmd0=='P' && cmd1=='O') {
// string terminator
buff[length] = '\0';
String command = String((char*)buff);
// digital command
if (command.indexOf("digital/") == 0) {
command = command.substring(8);
digitalCommand(command);
// analog command
} else if (command.indexOf("analog/") == 0) {
command = command.substring(7);
analogCommand(command);
// mode command
} else if (command.indexOf("mode/") == 0) {
command = command.substring(5);
modeCommand(command);
}
}
void digitalCommand(String command) {
int pin, value;
if (command.indexOf("/") != -1) {
pin = command.substring(0, command.indexOf("/")).toInt();
value = command.substring(command.indexOf("/") + 1, command.length()).toInt();
digitalWrite(pin, value);
} else {
pin = command.toInt();
}
reportDigitalRead(pin, true);
}
void analogCommand(String command) {
int pin, value;
if (command.indexOf("/") != -1) {
pin = command.substring(0, command.indexOf("/")).toInt();
value = command.substring(command.indexOf("/") + 1, command.length()).toInt();
analogWrite(pin, value);
} else {
pin = command.toInt();
}
reportAnalogRead(pin, true);
}
void modeCommand(String command) {
int pin;
String strValue;
pin = command.substring(0, command.indexOf("/")).toInt();
strValue = command.substring(command.indexOf("/") + 1, command.length());
if (strValue == "output") {
pinMode(pin, OUTPUT);
reportPinMode(pin, OUTPUT);
reportPinMode(pin, strValue);
} else if (strValue == "input") {
pinMode(pin, INPUT);
reportPinMode(pin, strValue);
}
}
void reportPinMode(int pin, uint8_t dir) {
uint8_t buff[] = { 'P', 'I', '0', '0' };
buff[1] = dir == INPUT ? 'I' : 'O';
buff[2] += pin/10;
buff[3] += pin%10;
Bridge.writeMessage(buff, 4);
void reportPinMode(int pin, String mode) {
String message = "{\"pin\":";
message += pin;
message += ", \"mode\": \"";
message += mode;
message += "\"}";
Bridge.writeMessage(message);
}
void reportDigitalRead(int pin, boolean raw, boolean dataset) {
// "Dpp0" - "Dpp1"
// 0 1 2 3
uint8_t buff[] = { 'D', '0', '0', '0' };
buff[1] += pin/10;
buff[2] += pin%10;
if (digitalRead(pin) == HIGH)
buff[3] = '1';
if (raw)
Bridge.writeMessage(buff, 4);
void reportDigitalRead(int pin, boolean dataset) {
int value = digitalRead(pin);
String message = "{\"pin\":";
message += pin;
message += ", \"value\": ";
message += value;
message += "}";
Bridge.writeMessage(message);
if (dataset) {
char *val = "0";
val[0] = buff[3];
buff[3] = 0;
Bridge.put((const char *)buff, val);
String key = "D";
key += pin;
Bridge.put(key.c_str(), String(value).c_str());
}
}
void reportAnalogRead(int pin) {
// "App0000" - "App1023"
// 0 1 2 3 4 5 6
uint8_t buff[] = { 'A', '0', '0', '0', '0', '0', '0' };
buff[1] += pin/10;
buff[2] += pin%10;
void reportAnalogRead(int pin, boolean dataset) {
int value = analogRead(pin);
String message = "{\"pin\":";
message += pin;
message += ", \"value\": ";
message += value;
message += "}";
Bridge.writeMessage(message);
int v = analogRead(pin);
buff[6] += v%10; v /= 10;
buff[5] += v%10; v /= 10;
buff[4] += v%10; v /= 10;
buff[3] += v;
Bridge.writeMessage(buff, 7);
if (dataset) {
String key = "A";
key += pin;
Bridge.put(key.c_str(), String(value).c_str());
}
}