Fork of the espurna firmware for `mhsw` switches
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/*
RF MODULE
Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if RF_SUPPORT
#include <RCSwitch.h>
RCSwitch * _rfModem;
unsigned long _rf_learn_start = 0;
unsigned char _rf_learn_id = 0;
bool _rf_learn_status = true;
bool _rf_learn_active = false;
// -----------------------------------------------------------------------------
// RF
// -----------------------------------------------------------------------------
unsigned long _rfRetrieve(unsigned char id, bool status) {
String code = getSetting(status ? "rfbON" : "rfbOFF", id, "0");
return strtoul(code.c_str(), 0, 16);
}
void _rfStore(unsigned char id, bool status, unsigned long code) {
DEBUG_MSG_P(PSTR("[RF] Storing %d-%s => %X\n"), id, status ? "ON" : "OFF", code);
char buffer[20];
snprintf_P(buffer, sizeof(buffer), PSTR("%X"), code);
setSetting(status ? "rfbON" : "rfbOFF", id, buffer);
}
void _rfLearn(unsigned char id, bool status) {
_rf_learn_start = millis();
_rf_learn_id = id;
_rf_learn_status = status;
_rf_learn_active = true;
}
void _rfForget(unsigned char id, bool status) {
delSetting(status ? "rfbON" : "rfbOFF", id);
// Websocket update
#if WEB_SUPPORT
char wsb[100];
snprintf_P(wsb, sizeof(wsb), PSTR("{\"rfb\":[{\"id\": %d, \"status\": %d, \"data\": \"\"}]}"), id, status ? 1 : 0);
wsSend(wsb);
#endif
}
bool _rfMatch(unsigned long code, unsigned char& relayID, unsigned char& value) {
bool found = false;
DEBUG_MSG_P(PSTR("[RF] Trying to match code %X\n"), code);
for (unsigned char i=0; i<relayCount(); i++) {
unsigned long code_on = _rfRetrieve(i, true);
unsigned long code_off = _rfRetrieve(i, false);
if (code == code_on) {
DEBUG_MSG_P(PSTR("[RF] Match ON code for relay %d\n"), i);
value = 1;
found = true;
}
if (code == code_off) {
DEBUG_MSG_P(PSTR("[RF] Match OFF code for relay %d\n"), i);
if (found) value = 2;
found = true;
}
if (found) {
relayID = i;
return true;
}
}
return false;
}
// -----------------------------------------------------------------------------
// WEB
// -----------------------------------------------------------------------------
void _rfWebSocketOnSend(JsonObject& root) {
char buffer[20];
root["rfbVisible"] = 1;
root["rfbCount"] = relayCount();
JsonArray& rfb = root.createNestedArray("rfb");
for (byte id=0; id<relayCount(); id++) {
for (byte status=0; status<2; status++) {
JsonObject& node = rfb.createNestedObject();
snprintf_P(buffer, sizeof(buffer), PSTR("%X"), _rfRetrieve(id, status == 1));
node["id"] = id;
node["status"] = status;
node["data"] = String(buffer);
}
}
}
void _rfWebSocketOnAction(uint32_t client_id, const char * action, JsonObject& data) {
if (strcmp(action, "rfblearn") == 0) _rfLearn(data["id"], data["status"]);
if (strcmp(action, "rfbforget") == 0) _rfForget(data["id"], data["status"]);
if (strcmp(action, "rfbsend") == 0) _rfStore(data["id"], data["status"], data["data"].as<long>());
}
// -----------------------------------------------------------------------------
void rfLoop() {
static unsigned long last = 0;
if (_rfModem->available()) {
if (millis() - last > RF_DEBOUNCE) {
last = millis();
if (_rfModem->getReceivedValue() > 0) {
unsigned long rf_code = _rfModem->getReceivedValue();
DEBUG_MSG_P(PSTR("[RF] Received code: %X\n"), rf_code);
if (_rf_learn_active) {
_rf_learn_active = false;
_rfStore(_rf_learn_id, _rf_learn_status, rf_code);
// Websocket update
#if WEB_SUPPORT
char wsb[100];
snprintf_P(
wsb, sizeof(wsb),
PSTR("{\"rfb\":[{\"id\": %d, \"status\": %d, \"data\": \"%X\"}]}"),
_rf_learn_id, _rf_learn_status ? 1 : 0, rf_code);
wsSend(wsb);
#endif
} else {
unsigned char id;
unsigned char value;
if (_rfMatch(rf_code, id, value)) {
if (2 == value) {
relayToggle(id);
} else {
relayStatus(id, 1 == value);
}
}
}
}
}
_rfModem->resetAvailable();
}
if (_rf_learn_active && (millis() - _rf_learn_start > RF_LEARN_TIMEOUT)) {
_rf_learn_active = false;
}
}
void rfSetup() {
_rfModem = new RCSwitch();
_rfModem->enableReceive(RF_PIN);
DEBUG_MSG_P(PSTR("[RF] RF receiver on GPIO %u\n"), RF_PIN);
#if WEB_SUPPORT
wsOnSendRegister(_rfWebSocketOnSend);
wsOnActionRegister(_rfWebSocketOnAction);
#endif
// Register loop
espurnaRegisterLoop(rfLoop);
}
#endif