I’m audio and video guy, but not a programmer, so I really need your help. I have arduino uno and Blackmagic Design 3G shield for arduino. I need to modify standard firmata code in this way: when arduino receives code from software to SET HIGH or SET LOW for some pins, do nothing with real physical pins, but perform a code from BMD library. For example:
When PIN3 set to high, perform:
sdiTallyControl.SetCameraTally(
1,
false,
true
);
Probably it’s very simple and stupid question, but my programming knowledge is almost 0 So thank you for any help!
I tried to write code like this, but somewhere is wrong syntax:
/*
* Firmata is a generic protocol for communicating with microcontrollers
* from software on a host computer. It is intended to work with
* any host computer software package.
*
* To download a host software package, please click on the following link
* to open the list of Firmata client libraries in your default browser.
*
* https://github.com/firmata/arduino#firmata-client-libraries
*/
/* Supports as many digital inputs and outputs as possible.
*
* This example code is in the public domain.
*/
#include <BMDSDIControl.h> // need to include the library
BMD_SDITallyControl_I2C sdiTallyControl(0x6E); // define the Tally object using I2C using the default shield address
#include <Firmata.h>
byte previousPIN[TOTAL_PORTS]; // PIN means PORT for input
byte previousPORT[TOTAL_PORTS];
void outputPort(byte portNumber, byte portValue)
{
// only send the data when it changes, otherwise you get too many messages!
if (previousPIN[portNumber] != portValue) {
Firmata.sendDigitalPort(portNumber, portValue);
previousPIN[portNumber] = portValue;
}
}
void setPinModeCallback(byte pin, int mode) {
if (IS_PIN_DIGITAL(pin)) {
pinMode(PIN_TO_DIGITAL(pin), mode);
}
}
void digitalWriteCallback(byte port, int value)
{
byte i;
byte currentPinValue, previousPinValue;
if (port < TOTAL_PORTS && value != previousPORT[port]) {
for (i = 0; i < 8; i++) {
currentPinValue = (byte) value & (1 << i);
previousPinValue = previousPORT[port] & (1 << i);
if (currentPinValue != previousPinValue) {
digitalWrite(i + (port * 8), currentPinValue);
}
}
previousPORT[port] = value;
}
}
void setup()
{
Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);
Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
Firmata.attach(SET_PIN_MODE, setPinModeCallback);
Firmata.attach(SET_DIGITAL_PIN_VALUE, callback);
Firmata.begin(57600);
sdiTallyControl.begin(); // initialize tally control
sdiTallyControl.setOverride(true); // enable tally override
}
void callback(byte pin, int value)
{
if (pin == 2 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
1, // Camera Number
false, // Program Tally
true // Preview Tally
);
}
else if (pin == 3 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
1, // Camera Number
true, // Program Tally
false // Preview Tally
);
}
else if (pin == 4 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
2, // Camera Number
false, // Program Tally
true // Preview Tally
);
}
else if (pin == 5 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
2, // Camera Number
true, // Program Tally
false // Preview Tally
);
}
else if (pin == 6 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
3, // Camera Number
false, // Program Tally
true // Preview Tally
);
}
else if (pin == 7 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
3, // Camera Number
true, // Program Tally
false // Preview Tally
);
}
else if (pin == 8 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
4, // Camera Number
false, // Program Tally
true // Preview Tally
);
}
else if (pin == 9 && value == HIGH){
sdiTallyControl.setCameraTally( // turn tally ON
4, // Camera Number
true, // Program Tally
false // Preview Tally
);
}
else {
sdiTallyControl.setCameraTally( // turn tally ON
1, // Camera Number
false, // Program Tally
false // Preview Tally
);
}
}
}
while (Firmata.available()) {
Firmata.processInput();
}
}
So thank you for any help!