SmartMeter Hiking DTS238-7

[iosifnicolae2]

Hi,
I've documented here how to connect Hiking DTS238-7 using Modbus here as I don't know how to update Tasmota documentation.

Wiring

• DTS238-7 pin 21 (A) -> MAX485 A (or equivalent TTL to Modbus)
• DTS238-7 pin 22 (B) -> MAX485 B (or equivalent TTL to Modbus)
• if using MAX485 check out the intructions from Add support for max485 #17247

User Config Override

Add the following content to tasmota/user_config_override.h:

#ifndef USE_SCRIPT
#define USE_SCRIPT
#endif
#ifndef USE_SML_M
#define USE_SML_M
#endif
#ifdef USE_RULES
#undef USE_RULES
#endif

// If you are using MAX485
#ifndef USE_MAX485
#define USE_MAX485
#endif

#ifndef MAX485_DE_PIN
// GPIO 0 = D3
#define MAX485_DE_PIN 0
#endif

Obs. If you are using MAX485, currently the PR that implements this functionality is not merged (#17247), so you will have to build Tasmota using the source code from that PR.

ESP Script

Login to Tasmota Web Interface, then go to Console and go to Edit Script.
Add the following content and check Enable script:

>D
>B
->sensor53 r
>M 1
+1,3,m,0,9600,,1,10,01030000,01030002,01030008,0103000A
1,=h Acasa SmartMeter
1,010304UUuuUUuu@i0:100,Total Power,Wh,Total,2
;
1,010304UUuuUUuu@i1:1,Total Reactive Energy,kVArh,ReactivePower,0
;
1,010304UUuuUUuu@i2:100,Total Export Energy,kWh,ExportActive,2
;
1,010304UUuuUUuu@i3:100,Total Import Energy,kWh,ImportActive,2
#