XPlane/HardwareAdapter
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send rref data to salve and display

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This commit is contained in:
damage
2025-05-17 19:57:15 +02:00
parent d8fe68679a
commit 107297f162
3 changed files with 124 additions and 73 deletions
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1
master/global.h
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@ -1,6 +1,7 @@
#define DATA_STOP_BYTE 0x00
#define DATA_INIT_BYTE_1 0x01
#define DATA_INIT_BYTE_2 0x02
#define DATA_BYTE 0x03
#define DATA_RESET_BYTE 0xFF
#define TRIGGER_BIT_1 1
#define HIGH_BIT_1 2

104
master/master.ino
View File

@ -15,26 +15,52 @@
#define AIRSPEED_SIM_DOWN "sim/autopilot/airspeed_down"
#define MQTT_SIM_COMMAND_TOPIC "/xplane/meta/cmnd"
#define MQTT_SIM_LOG_TOPIC "/xplane/meta/log"
#define MQTT_LOG_TOPIC "/xplane/meta/log"
#define MQTT_SIM_VALUE_TOPIC "/xplane/rref/#"
#define MQTT_SIM_VALUE_SUBSCRIBE_TOPIC_PREFIX "/xplane/rref/"
#define MQTT_SIM_VALUE_SUBSCRIBE_TOPIC "/xplane/rref"
#define MQTT_KEEPALIVE_INTERVAL_MS 15000
struct device {
byte address; // I2C address of device
char *name; // name of this device
char *name; // name of this device
char name1[3]; // first name to send on init of device
char *highCommand1; // command to use if TRIGGER_BIT_1 is set and HIGH_BIT_1 is set
char *lowCommand1; // command to use if TRIGGER_BIT_1 is set and HIGH_BIT_1 is not set
int rrefRefresh1; // refresh rate of subscribing rref
char *rref1; // rref to subscribe to
char name2[3]; // second name to send on init of device
char *highCommand2; // command to use if TRIGGER_BIT_2 is set and HIGH_BIT_2 is set
char *lowCommand2; // command to use if TRIGGER_BIT_2 is set and HIGH_BIT_2 is not set
int rrefRefresh2; // refresh rate of subscribing rref
char *rref2; // rref to subscribe to
};
struct device devices[] = {
{ 0x08, "Heading Speed", {'H', 'D', 'G'}, HEADING_SIM_UP, HEADING_SIM_DOWN, {'S', 'P', 'D'}, AIRSPEED_SIM_UP, AIRSPEED_SIM_DOWN }
{
0x08,
"Heading Speed",
{'H', 'D', 'G'},
HEADING_SIM_UP,
HEADING_SIM_DOWN,
200,
"sim/cockpit/autopilot/heading_mag",
{'S', 'P', 'D'},
AIRSPEED_SIM_UP,
AIRSPEED_SIM_DOWN,
200,
"sim/cockpit/autopilot/airspeed"
}
};
int numDevices = -1; // gets calculated in setup()
const int numDevices = sizeof(devices) / sizeof(device);
struct rrefSubscription {
byte address;
byte triggerBit;
};
struct rrefSubscription rrefSubscriptions[numDevices * 2];
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
EthernetClient client;
@ -42,20 +68,21 @@ EthernetClient client;
MqttClient mqttClient(client);
void onMqttMessage(int messageSize) {
// // we received a message, print out the topic and contents
// Serial.println("Received a message with topic '");
// Serial.print(mqttClient.messageTopic());
// Serial.print("', length ");
// Serial.print(messageSize);
// Serial.println(" bytes:");
//
// // use the Stream interface to print the contents
// while (mqttClient.available()) {
// Serial.print((char)mqttClient.read());
// }
// Serial.println();
//
// Serial.println();
// assume, that we always receive topic beginning with MQTT_SIM_VALUE_SUBSCRIBE_TOPIC_PREFIX
// otherwise, this will _HORRIBLY_ fail
char *rrefNoStr = &mqttClient.messageTopic()[13];
int rrefNo = atoi(rrefNoStr);
struct rrefSubscription rref = rrefSubscriptions[rrefNo - 1];
Wire.beginTransmission(rref.address);
Wire.write(DATA_BYTE);
Wire.write(rref.triggerBit);
Wire.write(messageSize);
while (mqttClient.available()) {
Wire.write((char)mqttClient.read());
}
Wire.endTransmission(rref.address);
}
void sendMqttMessage(char *topic, int n, ...) {
@ -70,7 +97,7 @@ void sendMqttMessage(char *topic, int n, ...) {
}
void sendI2CInit(struct device d) {
sendMqttMessage(MQTT_SIM_LOG_TOPIC, 2, "Sending init to ", d.name);
sendMqttMessage(MQTT_LOG_TOPIC, 2, "Sending init to ", d.name);
Wire.beginTransmission(d.address);
Wire.write(DATA_RESET_BYTE);
Wire.write(DATA_INIT_BYTE_1);
@ -80,10 +107,28 @@ void sendI2CInit(struct device d) {
Wire.endTransmission(d.address);
}
void setup() {
// count devices for loop
numDevices = sizeof(devices) / sizeof(device);
void subscribeRrefs(struct device *d, int deviceNo) {
char subscribeMsg[256];
// subscribe no 1
sprintf(subscribeMsg, "%03d %03d %s", deviceNo + 1, d->rrefRefresh1, d->rref1); // subscription no is index-1 based
sendMqttMessage(MQTT_SIM_VALUE_SUBSCRIBE_TOPIC, 1, subscribeMsg);
rrefSubscriptions[deviceNo] = { d->address, TRIGGER_BIT_1 };
// subscribe no 2
sprintf(subscribeMsg, "%03d %03d %s", deviceNo + 2, d->rrefRefresh2, d->rref2); // subscription no is index-1 based
sendMqttMessage(MQTT_SIM_VALUE_SUBSCRIBE_TOPIC, 1, subscribeMsg);
rrefSubscriptions[deviceNo + 1] = { d->address, TRIGGER_BIT_2 };
}
void initializeDevices() {
for (int i = 0; i < numDevices; i++) {
sendI2CInit(devices[i]);
subscribeRrefs(&devices[i], i);
}
}
void setup() {
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
@ -106,7 +151,7 @@ void setup() {
while (1);
} else {
Serial.println("MQTT connected");
sendMqttMessage(MQTT_SIM_LOG_TOPIC, 1, "Master online");
sendMqttMessage(MQTT_LOG_TOPIC, 2, "Master online ", localIP);
}
// subscribe to MQTT topic
@ -117,16 +162,7 @@ void setup() {
// start I2C
Wire.begin();
// for debugging
pinMode(LED_TX, OUTPUT);
digitalWrite(LED_TX, HIGH);
pinMode(LED_RX, OUTPUT);
digitalWrite(LED_RX, HIGH);
// initialize devices
for (int i = 0; i < numDevices; i++) {
sendI2CInit(devices[i]);
}
initializeDevices();
}
void loop() {
@ -142,7 +178,7 @@ void loop() {
continue;
} else if (data == DATA_RESET_BYTE) {
// device needs initialization
sendMqttMessage(MQTT_SIM_LOG_TOPIC, 2, "got reset byte from ", devices[i].name);
sendMqttMessage(MQTT_LOG_TOPIC, 2, "got reset byte from ", devices[i].name);
sendI2CInit(devices[i]);
} else {
// handle as payload