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�$��n � l� c|������r�b� b��nn�lnn�b b�p�$b�lrlp�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 r�l��r��n r�l��� 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

f���&&f�fͥM�=gifL�34d4��&�f�fͥM�=gifLff�f���&ffsfͥM�=gifL�f�f����fMiS�gifL�f�f�����fMiS�gifL�f�f�����fMiS�gif̦f�f����fs�&fMI�M�=gif̙f�f����f��f����M�=gif̦f�f����f���fMI�M�=giflff�f����f���fMI�M�=gif̙34d4���f���fMI�M�=gif�ff�f����f���fMI�M�=ofdf��h[VZe�3Yee���&����:J��>F6F�^>Z��>J>�:F>F>^66::>�:�::>"�Z��>J>��&F:F:^�2>d>22.2>2>2�22262�2&2��622262:���:J>�:F�F:^>>:6��F>"VR�/Z��:J>�:F�F�^>>:��2F66VR�^Z�֝J>�6F�F:�>>:.�.F�6&VRQ^Z��:J>��F�F6�>>2>�F22�VR�^���>J���&F�.F>^>>>6Z��:J��:F"�>�>>F..VR�Z��:J>�6F"F|^>>�>>>V)�Z��>J>��&F�F6:^>>>>Z��>J>���F"��^>>>>2Z��:J>���F�"F>^:Z^>J>���F"F:�Z^�:>T6:>&.>6�Z^>>>>>>>2:>V2Z�֝J>�26F26�>^>>>>6Z��:J>�6F26F�^>>>>tZ��:J��"6F26F>^>>>>2���:J>�26F2&F>^>>>>:Z��:J>�6F2&F>^>>>>6Z��:J>�"6F2&F>^>��>:Z��>J���&F:2F>^Z��:�>�26�"F>�622F6V�Z��:J>��6�"F>^62�F"V�Z��:�>�"6�"F��626F.V�Z��:J>�2:��f�����fMiS֝J>��F"F>^>>�V�Z��:J>�":F�F>^>�>V�Z��:J|�6:F"F>^>>F.>6VR�Z��:J>�.:F"F>^>>F>..VR�Z��:J>�&:F"F>^>>F>>*VR�Z��:J>�66F"F>^>>F>>>VR�Z��:J>�.6F"F>^>>F>>>VR�Z��:J>�&6F"F>^>>F>>>VR�Z��o.^e2y=h[VZe�3Yeeƕ��

[elngejw]

SOLVED:

I found out that on my PCB the signal was already inverted. Therefore I canceled out the bold marked line below in
esp8266_p1meter.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.