I've opened an issue for that.
https://github.com/mysensors/MySensors/issues/1452
According to API payload is same on ECHO message.
I feel this should be handled/fixed in lib, but I have no idea how to do...
If it is not possible to fix in lib, it shall not be allowed to send message with no payload anymore, which controller has to make sure then.
@rejoe2
Regarding FHEM, at the moment we should keep it as it is. No payload is not the normal use case.
I flashed gateway with 2.2.0 and this fixed the problem for me.
karlheinz2000 created this issue in mysensors/MySensors
open
ECHO problems when sending with no payload
#1452
Ok, i'm resplying to myself:
Just remove library from Arduino library folder. Then clone github repo into it. Library manager will tell you that it is not installed but it should be working fine
I do not use signed messages, so I used the Signed flag in the MySensors packet header to implement selective MQTT retain state.
Gateway is ESP2866 - no specific code.
Code send from client:
template<typename T>
void reportMsg(const uint8_t & id, const mysensors_data_t & tag, const T & val, const bool retain) {
MyMessage msg(id, tag);
msg.setSigned(retain);
send(msg.set(val), true);
}
Lite patch MyGatewayTransportMQTTClient.cpp:
bool gatewayTransportSend(MyMessage &message) {
...
bool retain = message.getSigned();
message.setSigned(false);
....
@Tsjippy Judging from this picture which the link points to:
it looks like it is using an nRF24L01+ module; the same module MySensors supports.
However, the software on the unit does not run MySensors (judging from the 0-125 address range), so you would either need to reprogram the unit with the MySensors stack (can't tell from the pictures if this is possible at all) or try to build a receiver using another nRF24L01+ module, which you would also need to program to communicate with the device.
Still it would be hard without a specification of the communication protocol.
One of the user comments mention the seller sent some docs along, so maybe you could ask them for specs?
