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--- technik:powmr-hvm6.2m_with_tasmota [2025/11/04 10:49]
marten
+++ technik:powmr-hvm6.2m_with_tasmota [2026/11/15 10:48] (current)
ich [PowMr POW-HVM6.2M with Tasmota]
@@ Line 3: / Line 3: @@
 To connect my **PowMr solar inverter** to **Home Assistant**, I needed some kind of adapter in between. I decided for **ESP32C3** with **Tasmota** firmware.
   * [[https://github.com/arendst/Tasmota]]
+  * {{ :technik:PowMr1_sch.pdf|Schaltplan}}
 Tasmota was comparatively easy to download and translate on my PC. Tasmota comes with a universal interface for ModBus devices such as PowMr. However, the ModBus register names and formats must be given in a kind of script.  Register and HW interface of my PowMr inverter was nicely analysed by
   * [[https://github.com/odya/esphome-powmr-hybrid-inverter?tab=readme-ov-file]]
@@ Line 156: / Line 157: @@
 </code>
+===== PZEM004 module =====
 PowMr inverter lacks the AC input  power measurement. For this reason I added a PZEM004 module for power measurement, which is already fully supported by Tasmota - simply by selecting Rx and Tx-PZEM004 in the Tasmota pin configuration menue.
 {{:technik:config_pzem.png?200|}}
-===== Tasmota-Berry ModBus Script =====
+===== Tasmota-Berry ModBus Scripting =====
-The above script lacks the possibility of changing values on the modbus device (just reading is possible).
+The above Tasmota script lacks the possibility of changing values on the modbus device (just reading is possible).
 Dies sind Ideen für ein schöneres Berry Script. Dafür muß in der Pin configuration für pin20/21 statt ''None'', ''ModBr Rx/Tx'' ausgewählt werden, um das ''ModBusSend'' Kommando auf der Console zu ermöglichen.

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