Using a photon/argon… On the photon, it looks like I am limited to a 512 byte UDP packet. Is this a UDP limitation? Or can I increase the size of this packet? I am using udp.write(String); If this requires using udp.write(const uint8_t buffer, int size) I could use some help translating a String to the uint8_t array (I can’t seem to figure that out). But I am still not sure that would work to get >512 bytes. Thanks!

Are you running SYSTEM_THREAD(ENABLED) - if not, try that. You can also try adding a Particle.process() in your loop to force the network stack to engage (although I’d think that shouldn’t be required). BTW, I just stumbled over this (again :blush:) https://docs.particle.io/reference/device-os/firmware/photon/#write--5 [image] So my proposed “solutions” above won’t work either. Alternatively you can use udp.sendPacket() to send unbuffered or use udp.setBuffer() to donate a bigger buffer.

Can you increase the size of a UDP packet?

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Can you increase the size of a UDP packet?

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