SOLVED: No messages after hass/status/p1 meter alive --- garbage data in log

[elngejw]

Hi all,

After installing and succesfull hass/status/p1 meter alive it keeps all quiet....no measurements are sent to mqtt. Anybody knows where the problem might be? Is there a way to see any logging?

Many thanks for your help!!

Best regards,

Geert-Jan

[elngejw]

To elaborate:

The meter is ISKRA AM550...I'm using the schematic below with the pull-up jumper installed. This was working fine with other code from Tasmota (see link) ...which delivers the complete telegram message in stead of a message per measurement.

[elngejw]

And I managed to get the logging:

rll�r$�n�l�c|���rb�b�nnlnnbbp�$blrlp�n0�l�bn�n��b��nn'l�l�nn$nr���nrr�p�nr�bbn�nb��nn'l�nn$nr���nrlr��nrl�l�rl��n�`

Swapping UART0 RX to inverted Serial port is ready to recieve. read_eeprom()read_eeprom()read_eeprom()read_eeprom()read_eeprom()wm:[2] Added Parameter: host wm:[2] Added Parameter: port wm:[2] Added Parameter: user wm:[2] Added Parameter: pass wm:[1] AutoConnect wm:[2] Connecting as wifi client... wm:[2] setSTAConfig static ip not set, skipping wm:[1] Connecting to SAVED AP: xxxxxxxxxx wm:[1] connectTimeout not set, ESP waitForConnectResult... wm:[2] Connection result: WL_CONNECTED wm:[1] AutoConnect: SUCCESS wm:[2] Connected in 3879 ms *wm:[1] STA IP Address: 192.168.1.110 Connected to WIFI... Arduino OTA activated. Arduino OTA finished Starting MDNS responder service MQTT connecting to: 192.168.1.100:1883 MQTT connection attempt 1 / 10 ... MQTT connected! MQTT root topic: sensors/power/mqtt-p1

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[elngejw]

SOLVED:

I found out that on my PCB the signal was already inverted. Therefore I canceled out the bold marked line below in _esp8266p1meter.ino

// Invert the RX serialport by setting a register value, this way the TX might continue normally allowing the serial monitor to read println's
**//USC0(UART0) = USC0(UART0) | BIT(UCRXI);**

[daniel-jong]

Hi! Sorry for leaving you hanging there for a bit. But great to hear that you have solved your issue. Like you have said I think you pcb has a inverter set up at its Q1 component. I’m leaving this issue open for a bit and see if it might help some people.