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Serial Flashing

Flash the Tasmota firmware.

• Get the latestTasmota firmware.
• UseTazmotizer for flashing via serial interface.
  • StartTasmotizer.
  • SelectSerial Port.
  • CheckSave original firmware.
  • Pick1 MB from dropdown list.
  • SelectBIN radio button.
  • Open latest Tasmota firmware from above.
  • CheckErase before flashing.
• ConnectUSB to serial interface from computer to board with3v jumper selected.
  1. Connect to board as follows.

1. Power up the Eachen Relay board with the#1 Relay button held down.
2. Continue holding the#1 Relay button down during the entire flashing process.
3. Hit blueTasmotize! button in Tasmotizer. 4.1 If Tasmotizer times out with error message: ‘Failed to connect to ESP8266: Timed out waiting for packet header’, you may have to connect the 2 C66 pads on the ST-DC4 and repeat steps 2 to 4
4. After a minute or so the Eachen board will reboot into new firmware.
5. Unplug power from Eachen board. Wait 5 secs then replug power.

   Connect to WIFI

   • Using WIFI capable device connect to AP labeled tasmota_XXXXXX.
     (where XXXXXX is the last 6 digits of the device’s MAC addr.)
   • Once connected go tohttp://192.168.4.1
   • Enter your WIFI information intoAP1 SSID andAP1 Password and check the box beside password.
   • HitSave.

Setup

• Go to your Router Admin page.
  • Look for IP address of device named tasmota_XXXXXX.
    (where XXXXXX is the last 6 digits of device’s MAC addr.)
• Enter the IP address from above into a web browser.
• Go toConfiguration,Other
  • (This step:
  • configures the device’s parameters including TuyaMCU serial COMM and 4 dummy relays used in the Rules below)
• Copy
  {"NAME":"Eachen_ST-DC4","GPIO":[160,1,1,1,226,225,1,1,224,544,1,227,1,0],"FLAG":0,"BASE":54}
• Paste intoTemplate field.
• CheckActivate box.
• HitSave.
• Device will reboot.
• Go toConsole
  • (This step sets up:
  • 9600 baud rate withso97 0
  • enables MQTT withso3 1
  • publishes TuyaReceived messages to MQTT withso66 1
  • keeps momentary timing slider from turning off dummy relay9(BUS) withso77 1
  • keeps momentary timing slider from turning on dummy relay9(BUS) withso20 1
  • assigns the Tuya MCU serial relay devices to Tasmota devices
    • relay1withtuyamcu 11,1
    • relay2withtuyamcu 12,2
    • relay3withtuyamcu 13,3
    • relay4withtuyamcu 14,4
    • all on functionwithtuyamcu 15,13
    • momentary timing sliderwithtuyamcu 21,103)
  • Copy

    backlog so97 0;so3 1;so66 1;so20 1;so77 1;tuyamcu 11,1;tuyamcu 12,2;tuyamcu 13,3;tuyamcu 14,4;tuyamcu 15,13;tuyamcu 21,103

  • Paste intoConsole’sEnter command space.
  • Device will reboot.
• Go toConsole
  • (This step sets up:
  • an interlock on dummy relays 6(SLM),7(MAM),8(ILKM) so only 1 relay mode may be selected withinterlock 6,7,8andinterlock 1

  • 0 to 60 secs timing on momentary timing slider withdimmerrange 0,600anddimmerstep 5)

  • Copy

    backlog interlock 6,7,8;interlock 1;dimmerrange 0,600;dimmerstep 5

  • Paste intoConsole’sEnter command space.
  • Device will reboot.
• Go toConsole
  • (This step:
  • names all theWebUI buttonsusing the first Copy/Paste
    • ALL= ALL ON button
    • SLM= Self Lock Mode (any number of relays remain ON until turned OFF)
    • MAM= Momentary Mode (uses Dimmer Slider to set ON time length from 0 to 60 secs)
    • ILKM= Interlock Mode (Only 1 relay can remain ON at a time)
    • BUS= Boot Up State (Do all relays remain OFF or turn ON when power is applied to board)
  • creates Rules to be used for
    • Boot Up StatewithRule1and
    • Relay ModewithRule2
      using the second Copy/Paste)
• Copy

  backlog webbutton5 ALL;webbutton6 SLM;webbutton7 MAM;webbutton8 ILKM;webbutton9 BUS

• Paste intoConsole’sEnter command space.
• Copy

  backlog rule1 on power9#state=1 do tuyasend1 101,1 endon on power9#state=0 do tuyasend1 101,0 endon;rule1 1;rule2 on power6#state=1 do tuyasend4 102,0 endon on power7#state=1 do tuyasend4 102,1 endon on power8#state=1 do tuyasend4 102,2 endon  on tuyareceived#data=55AA03070005660400010079 do power6 1 endon  on tuyareceived#data=55AA0307000566040001017A do power7 1 endon  on tuyareceived#data=55AA0307000566040001027B do power8 1 endon;rule2 1

• Paste intoConsole’sEnter command space.
• Device will reboot.
• optional - Go toConsole
  • (This step:
    • names all the devices)
  • Copy

    backlog devicename tasmota_relay01;friendlyname1 tasmota_relay01-1;friendlyname2 tasmota_relay01-2;friendlyname3 tasmota_relay01-3;friendlyname4 tasmota_relay01-4;friendlyname5 tasmota_relay01-all;friendlyname6 tasmota_relay01-slm;friendlyname7 tasmota_relay01-mam;friendlyname8 tasmota_relay01-ilkm

  • Paste intoConsole’sEnter command space.