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Update remote.cpp to allow parsing JSON over ESP NOW #4084

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Update remote.cpp to allow parsing JSON over ESP NOW #4084

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2059f73
Update remote.cpp to allow parsing JSON over ESP NOW
insane2subro Aug 2, 2024
648d907
Update remote.cpp
insane2subro Aug 2, 2024
fe13a62
Update remote.cpp
insane2subro Aug 2, 2024
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27 changes: 24 additions & 3 deletions wled00/remote.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ void handleRemote(){}
// This is kind of an esoteric strucure because it's pulled from the "Wizmote"
// product spec. That remote is used as the baseline for behavior and availability
// since it's broadly commercially available and works out of the box as a drop-in

typedef struct message_structure {
uint8_t program; // 0x91 for ON button, 0x81 for all others
uint8_t seq[4]; // Incremental sequence number 32 bit unsigned integer LSB first
Expand Down Expand Up @@ -114,7 +115,18 @@ static void presetWithFallback(uint8_t presetID, uint8_t effectID, uint8_t palet
unloadPlaylist();
applyPresetWithFallback(presetID, CALL_MODE_BUTTON_PRESET, effectID, paletteID);
}


bool parsePayload(const char* jsonStr) {
// Use WLED's built-in JSON handling functions
DynamicJsonDocument doc(1024);
DeserializationError error = deserializeJson(doc, jsonStr);
if (error) {
return false;
}
JsonObject root = doc.as<JsonObject>();
return deserializeState(root, CALL_MODE_BUTTON);
}

// Callback function that will be executed when data is received
#ifdef ESP8266
void OnDataRecv(uint8_t * mac, uint8_t *incomingData, uint8_t len) {
Expand All @@ -134,6 +146,17 @@ void OnDataRecv(const uint8_t * mac, const uint8_t *incomingData, int len) {
if (len != sizeof(incoming)) {
DEBUG_PRINT(F("Unknown incoming ESP Now message received of length "));
DEBUG_PRINTLN(len);

char jsonStr[len + 1];
memcpy(jsonStr, incomingData, len);
jsonStr[len] = '\0';

if (!parsePayload(jsonStr)) {
DEBUG_PRINTLN(F("Failed to parse JSON"));
return;
}

stateUpdated(CALL_MODE_BUTTON);
return;
}

Expand All @@ -144,7 +167,6 @@ void OnDataRecv(const uint8_t * mac, const uint8_t *incomingData, int len) {
return;
}


DEBUG_PRINT(F("Incoming ESP Now Packet["));
DEBUG_PRINT(cur_seq);
DEBUG_PRINT(F("] from sender["));
Expand All @@ -162,7 +184,6 @@ void OnDataRecv(const uint8_t * mac, const uint8_t *incomingData, int len) {
case WIZMOTE_BUTTON_BRIGHT_UP : brightnessUp(); stateUpdated(CALL_MODE_BUTTON); break;
case WIZMOTE_BUTTON_BRIGHT_DOWN : brightnessDown(); stateUpdated(CALL_MODE_BUTTON); break;
default: break;

}

last_seq = cur_seq;
Expand Down
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