Hi,
I made a blinds driver (30 relays, 15 buttons) to go with Domoticz. I am using Mega2560 as MySensors board to communicate with Domoticz at RaspberryPi 4. Code below:
// Enable debug prints to serial monitor
#define MY_DEBUG
// Enable and select radio type attached
//#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
// Set LOW transmit power level as default, if you have an amplified NRF-module and
// power your radio separately with a good regulator you can turn up PA level.
//#define MY_RF24_PA_LEVEL RF24_PA_LOW
// Enable serial gateway
#define MY_GATEWAY_SERIAL
// Define a lower baud rate for Arduino's running on 8 MHz (Arduino Pro Mini 3.3V & SenseBender)
#if F_CPU == 8000000L
#define MY_BAUD_RATE 38400
#endif
// Flash leds on rx/tx/err
// #define MY_LEDS_BLINKING_FEATURE
// Set blinking period
// #define MY_DEFAULT_LED_BLINK_PERIOD 300
// Inverses the behavior of leds
// #define MY_WITH_LEDS_BLINKING_INVERSE
// Enable inclusion mode
#define MY_INCLUSION_MODE_FEATURE
// Enable Inclusion mode button on gateway
#define MY_INCLUSION_BUTTON_FEATURE
// Inverses behavior of inclusion button (if using external pullup)
//#define MY_INCLUSION_BUTTON_EXTERNAL_PULLUP
// Set inclusion mode duration (in seconds)
#define MY_INCLUSION_MODE_DURATION 60
// Digital pin used for inclusion mode button
#define MY_INCLUSION_MODE_BUTTON_PIN 3
// Uncomment to override default HW configurations
//#define MY_DEFAULT_ERR_LED_PIN 4 // Error led pin
//#define MY_DEFAULT_RX_LED_PIN 6 // Receive led pin
//#define MY_DEFAULT_TX_LED_PIN 5 // the PCB, on board LED
#include <SPI.h>
#include <MySensors.h>
#include <Bounce2.h>
// Enable repeater functionality for this node
#define MY_REPEATER_FEATURE
#define RELAY_1 4 // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define RELAY_2 5
#define RELAY_3 6
#define RELAY_4 7
#define RELAY_5 8
#define RELAY_6 9
#define RELAY_7 10
#define RELAY_8 11
#define RELAY_9 22
#define RELAY_10 23
#define RELAY_11 24
#define RELAY_12 25
#define RELAY_13 26
#define RELAY_14 27
#define RELAY_15 28
#define RELAY_16 29
#define RELAY_17 30
#define RELAY_18 31
#define RELAY_19 32
#define RELAY_20 33
#define RELAY_21 34
#define RELAY_22 35
#define RELAY_23 36
#define RELAY_24 37
#define RELAY_25 38
#define RELAY_26 39
#define RELAY_27 40
#define RELAY_28 41
#define RELAY_29 42
#define RELAY_30 43
#define NUMBER_OF_RELAYS 30 // Total number of attached relays
#define RELAY_ON 0 // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay
#define BUTTON_PIN A1
#define BUTTON2_PIN A2
#define BUTTON3_PIN A3
#define BUTTON4_PIN A4
#define BUTTON5_PIN A5
#define BUTTON6_PIN A6
#define BUTTON7_PIN A7
#define BUTTON8_PIN A8
#define BUTTON9_PIN A9
#define BUTTON10_PIN A10
#define BUTTON11_PIN A11
#define BUTTON12_PIN A12
#define BUTTON13_PIN A13
#define BUTTON14_PIN A14
#define BUTTON15_PIN A15
void before() {
for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
// Then set relay pins in output mode
pinMode(pin, OUTPUT);
// Set relay to last known state (using eeprom storage)
digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
}
}
Bounce debouncer = Bounce();
Bounce debouncer3 = Bounce();
Bounce debouncer5 = Bounce();
Bounce debouncer7 = Bounce();
Bounce debouncer9 = Bounce();
Bounce debouncer11 = Bounce();
Bounce debouncer13 = Bounce();
Bounce debouncer15 = Bounce();
Bounce debouncer17 = Bounce();
Bounce debouncer19 = Bounce();
Bounce debouncer21 = Bounce();
Bounce debouncer23 = Bounce();
Bounce debouncer25 = Bounce();
Bounce debouncer27 = Bounce();
Bounce debouncer29 = Bounce();
void setup() {
// Setup locally attached sensors
delay(10000);
// Setup the button.
pinMode(BUTTON_PIN, INPUT_PULLUP);
pinMode(BUTTON2_PIN, INPUT_PULLUP);
pinMode(BUTTON3_PIN, INPUT_PULLUP);
pinMode(BUTTON4_PIN, INPUT_PULLUP);
pinMode(BUTTON5_PIN, INPUT_PULLUP);
pinMode(BUTTON6_PIN, INPUT_PULLUP);
pinMode(BUTTON7_PIN, INPUT_PULLUP);
pinMode(BUTTON8_PIN, INPUT_PULLUP);
pinMode(BUTTON9_PIN, INPUT_PULLUP);
pinMode(BUTTON10_PIN, INPUT_PULLUP);
pinMode(BUTTON11_PIN, INPUT_PULLUP);
pinMode(BUTTON12_PIN, INPUT_PULLUP);
pinMode(BUTTON13_PIN, INPUT_PULLUP);
pinMode(BUTTON14_PIN, INPUT_PULLUP);
pinMode(BUTTON15_PIN, INPUT_PULLUP);
// After setting up the button, setup debouncer.
debouncer.attach(BUTTON_PIN);
debouncer.interval(5);
debouncer3.attach(BUTTON2_PIN);
debouncer3.interval(5);
debouncer5.attach(BUTTON3_PIN);
debouncer5.interval(5);
debouncer7.attach(BUTTON4_PIN);
debouncer7.interval(5);
debouncer9.attach(BUTTON5_PIN);
debouncer9.interval(5);
debouncer11.attach(BUTTON6_PIN);
debouncer11.interval(5);
debouncer13.attach(BUTTON7_PIN);
debouncer13.interval(5);
debouncer15.attach(BUTTON8_PIN);
debouncer15.interval(5);
debouncer17.attach(BUTTON9_PIN);
debouncer17.interval(5);
debouncer19.attach(BUTTON10_PIN);
debouncer19.interval(5);
debouncer21.attach(BUTTON11_PIN);
debouncer21.interval(5);
debouncer23.attach(BUTTON12_PIN);
debouncer23.interval(5);
debouncer25.attach(BUTTON13_PIN);
debouncer25.interval(5);
debouncer27.attach(BUTTON14_PIN);
debouncer27.interval(5);
debouncer29.attach(BUTTON15_PIN);
debouncer29.interval(5);
//presentation();
}
void presentation()
{
// Send the sketch version information to the gateway and Controller
sendSketchInfo("Relay", "1.0");
for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
// Register all sensors to gw (they will be created as child devices)
present(sensor, S_LIGHT);
}
}
MyMessage msg(1, V_LIGHT);
MyMessage msg2(2, V_LIGHT);
MyMessage msg3(3, V_LIGHT);
MyMessage msg4(4, V_LIGHT);
MyMessage msg5(5, V_LIGHT);
MyMessage msg6(6, V_LIGHT);
MyMessage msg7(7, V_LIGHT);
MyMessage msg8(8, V_LIGHT);
MyMessage msg9(9, V_LIGHT);
MyMessage msg10(10, V_LIGHT);
MyMessage msg11(11, V_LIGHT);
MyMessage msg12(12, V_LIGHT);
MyMessage msg13(13, V_LIGHT);
MyMessage msg14(14, V_LIGHT);
MyMessage msg15(15, V_LIGHT);
MyMessage msg16(16, V_LIGHT);
MyMessage msg17(17, V_LIGHT);
MyMessage msg18(18, V_LIGHT);
MyMessage msg19(19, V_LIGHT);
MyMessage msg20(20, V_LIGHT);
MyMessage msg21(21, V_LIGHT);
MyMessage msg22(22, V_LIGHT);
MyMessage msg23(23, V_LIGHT);
MyMessage msg24(24, V_LIGHT);
MyMessage msg25(25, V_LIGHT);
MyMessage msg26(26, V_LIGHT);
MyMessage msg27(27, V_LIGHT);
MyMessage msg28(28, V_LIGHT);
MyMessage msg29(29, V_LIGHT);
MyMessage msg30(30, V_LIGHT);
void loop() {
// Send locally attached sensor data here
if (debouncer.update()) {
// Get the update value.
int value = debouncer.read();
// Send in the new value.
if(value == LOW){
saveState(1, !loadState(1));
digitalWrite(RELAY_1, loadState(1)?RELAY_ON:RELAY_OFF);
send(msg.set(loadState(1)));
}
}
if (debouncer3.update()) {
int value3 = debouncer3.read();
if(value3 == LOW){
saveState(3, !loadState(3));
digitalWrite(RELAY_3, loadState(3)?RELAY_ON:RELAY_OFF);
send(msg3.set(loadState(3)));
}
}
if (debouncer5.update()) {
int value5 = debouncer5.read();
if(value5 == LOW){
saveState(5, !loadState(5));
digitalWrite(RELAY_5, loadState(5)?RELAY_ON:RELAY_OFF);
send(msg5.set(loadState(5)));
}
}
if (debouncer7.update()) {
int value7 = debouncer7.read();
if(value7 == LOW){
saveState(7, !loadState(7));
digitalWrite(RELAY_7, loadState(7)?RELAY_ON:RELAY_OFF);
send(msg7.set(loadState(7)));
}
}
if (debouncer9.update()) {
int value9 = debouncer9.read();
if(value9 == LOW){
saveState(9, !loadState(9));
digitalWrite(RELAY_9, loadState(9)?RELAY_ON:RELAY_OFF);
send(msg9.set(loadState(9)));
}
}
if (debouncer11.update()) {
int value11 = debouncer11.read();
if(value11 == LOW){
saveState(11, !loadState(11));
digitalWrite(RELAY_11, loadState(11)?RELAY_ON:RELAY_OFF);
send(msg11.set(loadState(11)));
}
}
if (debouncer13.update()) {
int value13 = debouncer13.read();
if(value13 == LOW){
saveState(13, !loadState(13));
digitalWrite(RELAY_13, loadState(13)?RELAY_ON:RELAY_OFF);
send(msg13.set(loadState(13)));
}
}
if (debouncer15.update()) {
int value15 = debouncer15.read();
if(value15 == LOW){
saveState(15, !loadState(15));
digitalWrite(RELAY_15, loadState(15)?RELAY_ON:RELAY_OFF);
send(msg15.set(loadState(15)));
}
}
if (debouncer17.update()) {
int value17 = debouncer17.read();
if(value17 == LOW){
saveState(17, !loadState(17));
digitalWrite(RELAY_17, loadState(17)?RELAY_ON:RELAY_OFF);
send(msg17.set(loadState(17)));
}
}
if (debouncer19.update()) {
int value19 = debouncer19.read();
if(value19 == LOW){
saveState(19, !loadState(19));
digitalWrite(RELAY_19, loadState(19)?RELAY_ON:RELAY_OFF);
send(msg19.set(loadState(19)));
Serial.println("19 zmiana");
}
}
if (debouncer21.update()) {
int value21 = debouncer21.read();
if(value21 == LOW){
saveState(21, !loadState(21));
digitalWrite(RELAY_21, loadState(21)?RELAY_ON:RELAY_OFF);
send(msg21.set(loadState(21)));
}
}
if (debouncer23.update()) {
int value23 = debouncer23.read();
if(value23 == LOW){
saveState(23, !loadState(23));
digitalWrite(RELAY_23, loadState(23)?RELAY_ON:RELAY_OFF);
send(msg23.set(loadState(23)));
}
}
if (debouncer25.update()) {
int value25 = debouncer25.read();
if(value25 == LOW){
saveState(25, !loadState(25));
digitalWrite(RELAY_25, loadState(25)?RELAY_ON:RELAY_OFF);
send(msg25.set(loadState(25)));
}
}
if (debouncer27.update()) {
int value27 = debouncer27.read();
if(value27 == LOW){
saveState(27, !loadState(27));
digitalWrite(RELAY_27, loadState(27)?RELAY_ON:RELAY_OFF);
send(msg27.set(loadState(27)));
}
}
if (debouncer29.update()) {
int value29 = debouncer29.read();
if(value29 == LOW){
saveState(29, !loadState(29));
digitalWrite(RELAY_29, loadState(29)?RELAY_ON:RELAY_OFF);
send(msg29.set(loadState(29)));
}
}
}
void receive(const MyMessage &message) {
// We only expect one type of message from controller. But we better check anyway.
if (message.type==V_LIGHT) {
// Change relay state
digitalWrite(message.sensor-1+RELAY_1, message.getBool()?RELAY_ON:RELAY_OFF);
// Store state in eeprom
saveState(message.sensor, message.getBool());
// Write some debug info
Serial.print("Incoming change for sensor:");
Serial.print(message.sensor);
Serial.print(", New status: ");
Serial.println(message.getBool());
}
}
It works fine, however I have a synchronisation problem. When there is a power loss, Arduino restores relay states form EEPROM, using this line:
digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
Domoticz seems to have its own way to remeber what relays were on. When power is restored there is a mismatch between arduino EEPROM data and domoticz. Is there any way to fix this? I was thinking 2 ways: either resend all relay statuses right after restoring them from arduino EEPROM or download on/off status from domoticz? I would actually prefer the first method. How can it be done?