Sternenlabor/WLED
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This commit is contained in:
Arthur Suzuki
2025-08-30 01:52:36 +02:00
parent a60be251d2
commit 62fad4dcdf
1 changed files with 15 additions and 5 deletions
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20
usermods/udp_name_sync/udp_name_sync.cpp
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@@ -6,6 +6,7 @@ class UdpNameSync : public Usermod {
bool enabled = false;
char segmentName[WLED_MAX_SEGNAME_LEN] = {0};
static constexpr uint8_t kPacketType = 200; // custom usermod packet type
static const char _name[];
static const char _enabled[];
@@ -21,9 +22,11 @@ class UdpNameSync : public Usermod {
inline bool isEnabled() const { return enabled; }
void setup() override {
enable(true);
}
void loop() override {
if (!enabled) return;
if (!WLED_CONNECTED) return;
if (!udpConnected) return;
Segment& mainseg = strip.getMainSegment();
@@ -31,7 +34,7 @@ class UdpNameSync : public Usermod {
IPAddress broadcastIp = uint32_t(Network.localIP()) | ~uint32_t(Network.subnetMask());
byte udpOut[WLED_MAX_SEGNAME_LEN + 2];
udpOut[0] = 200; // custom usermod packet type (avoid 0..5 used by core protocols)
udpOut[0] = kPacketType; // custom usermod packet type (avoid 0..5 used by core protocols)
if (strlen(segmentName) && !mainseg.name) { // name cleared
notifierUdp.beginPacket(broadcastIp, udpPort);
segmentName[0] = '\0';
@@ -48,6 +51,7 @@ class UdpNameSync : public Usermod {
notifierUdp.beginPacket(broadcastIp, udpPort);
DEBUG_PRINT(F("UdpNameSync: saving segment name "));
DEBUG_PRINTLN(mainseg.name);
DEBUG_PRINTLN(curName);
strlcpy(segmentName, mainseg.name, sizeof(segmentName));
strlcpy((char *)&udpOut[1], segmentName, sizeof(udpOut) - 1); // leave room for header byte
notifierUdp.write(udpOut, 2 + strnlen((char *)&udpOut[1], sizeof(udpOut) - 1));
@@ -58,14 +62,20 @@ class UdpNameSync : public Usermod {
bool onUdpPacket(uint8_t * payload, size_t len) override {
DEBUG_PRINT(F("UdpNameSync: Received packet"));
if (!enabled) return false;
if (receiveDirect) return false;
if (payload[0] != 200) return false;
//else
if (len < 2) return false; // need type + at least 1 byte for name (can be 0)
if (payload[0] != kPacketType) return false;
Segment& mainseg = strip.getMainSegment();
mainseg.setName((char *)&payload[1]);
char tmp[WLED_MAX_SEGNAME_LEN] = {0};
size_t copyLen = len - 1;
if (copyLen > sizeof(tmp) - 1) copyLen = sizeof(tmp) - 1;
memcpy(tmp, &payload[1], copyLen);
tmp[copyLen] = '\0';
mainseg.setName(tmp);
DEBUG_PRINT(F("UdpNameSync: set segment name"));
return true;
}
}
};