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tools:tasmota [2023/10/16 19:43] – [SONOFF 4CH PRO R2] darrontools:tasmota [2023/12/15 07:56] (current) – [SONOFF 4CH PRO R2] darron
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 ===SONOFF 4CH PRO R2=== ===SONOFF 4CH PRO R2===
  
-First attach a console to the ESP8285Connect a UART adapter in 3V mode to the Rx/Tx and GND pins on the board and power on with the DC input.+<wrap right> 
 +{{tools:sonof4ch.jpg?100}} {{tools:esp8285-pin-layout.jpg?100}} 
 +</wrap>
  
 The built-in firmware for this device died after 6 months of use. The console shows the chip rebooting with watchdog reset errors continuously. The built-in firmware for this device died after 6 months of use. The console shows the chip rebooting with watchdog reset errors continuously.
  
-==Write flash==+To upgrade attach a console to the ESP8285 by connecting a UART adapter in 3V mode to the Rx/Tx and GND pins on the board. Power up with the DC input.
  
-To enable flash mode power off and short IO0 on the pad. Power up with the DC input.+To enable flash erase/write, power off and short IO0 on the pad. Power up with the DC input. 
 + 
 +==Write flash==
  
-Writing took a number of attempt and with a 100% success power cycle the board.+Writing was unreliable and needed lots of attempts (do not give up).
  
 <code> <code>
 +esptool.py write_flash 0 tasmota.bin --no-compress
 +esptool.py v4.6.2
 +Loaded custom configuration from /home/darron/Tasmota/ESP8266/13.1.0/esptool.cfg
 +Found 1 serial ports
 +Serial port /dev/ttyUSB0
 +Connecting...
 +Detecting chip type... Unsupported detection protocol, switching and trying again...
 +Connecting...
 +Detecting chip type... ESP8266
 +Chip is ESP8285N08
 +Features: WiFi, Embedded Flash
 +Crystal is 26MHz
 +MAC: 84:0d:8e:48:e6:fd
 +Stub is already running. No upload is necessary.
 +Configuring flash size...
 +Flash will be erased from 0x00000000 to 0x0009efff...
 +Wrote 655360 bytes at 0x00000000 in 59.9 seconds (87.5 kbit/s)...
 +Hash of data verified.
  
 +Leaving...
 +Hard resetting via RTS pin...
 </code> </code>
  
 ==Boot== ==Boot==
 +
 +When writing succeeded, this was the boot message.
  
 <code> <code>
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 [[https://datasheet.lcsc.com/szlcsc/SYN480R-FS24_C15561.pdf|SONOFF 4CH Pro RF receiver data-sheet]] [[https://datasheet.lcsc.com/szlcsc/SYN480R-FS24_C15561.pdf|SONOFF 4CH Pro RF receiver data-sheet]]
 +
 +{{tools:4ch_pro.pdf|SONOFF 4CH User manual}}
 +