RF Bridge: Add support for flashing the RF EFM8BB1 chip

[ErikAndren]

Hi,
This isn't a pull request per se but more of a call for review / interest.

This branch allows you to flash the RF EFM8BB1 chip on the Sonoff RF Bridge, given that you connect the C2CK pin to the GPIO4 and C2K pin to GPIO5 on the board.

Update:
If you are running a 2.0 board (check PCB) then swap c2ck and c2k. Do not power the board via usb.

Firmware updates are performed the ordinary way and the software autodetects if the image is for the EFM8BB1.

Is this something that would be of use to the general Tasmota project?

Thanks,
Erik

[Jason2866]

Great job!
Will try soon😃

[Jason2866]

Hello @ErikAndren

i get this compile error:
Archiving .pioenvs\sonoff\lib0de\libSPI.a Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\HtmlColor.cpp.o Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\HtmlColorNameStrings.cpp.o D:/Sonoff-Tasmota-add-rf-flash-5.14/sonoff/webserver.ino: In function 'void HandleUploadLoop()': D:/Sonoff-Tasmota-add-rf-flash-5.14/sonoff/webserver.ino:1356:34: error: 'UPDATE_ERROR_BOOTSTRAP' was not declared in this scope if (Update.getError() == UPDATE_ERROR_BOOTSTRAP) { ^ Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\HtmlColorNames.cpp.o Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\HtmlColorShortNames.cpp.o Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\NeoEsp8266UartMethod.cpp.o Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\NeoGamma.cpp.o Compiling .pioenvs\sonoff\lib946\NeoPixelBus-2.2.9\internal\NeoPixelAnimator.cpp.o *** [.pioenvs\sonoff\src\sonoff.ino.cpp.o] Error 1

[ErikAndren]

Ah, seems like this is dependent on what version of the esp8266 library. I've pushed a workaround for now. Is there a define that one could use to see what version of the esp8266 library that is used?

[Jason2866]

Now build is successfull. But flashing is not working.

Now EFM8BB1 Flash is erased/corrupted -> RFBridge doesnt receive anything now
I connected C2CK to GPIO4, C2D to GPIO5 and switch off when trying to flashing

[Jason2866]

Solved. Really heavy stuff with Hardware R2 V1.0....
Gpio 4 and 5 labeling is wrong (switched) AND GPIO 4 and 5 is connected to USB Power.
Solution was swapping cables and NOT Powering through USB Cable!
Details here:
https://github.com/xoseperez/espurna/wiki/Hardware-Itead-Sonoff-RF-Bridge---Direct-Hack
This modification is not needed!! Just power the R2 bridge with 3.3V over pinheader!!

Now Intertechno Remote is correct decoded with Portisch firmware:
00:00:00 Project sonoff RFBridge_2 (Topic sonoff-82589D, Fallback sonoff-82589D, GroupTopic sonoffs) Version 5.14.0-2_3_0 00:00:00 WIF: Connecting to AP1 Jason_Home_WLAN in mode 11N as sonoff-82589D-6301... 00:00:09 WIF: Connected 00:00:09 HTP: Web server active on sonoff-82589D-6301 with IP address 192.168.2.127 22:58:50 MQT: Attempting connection... 22:58:50 MQT: Connected 22:58:50 MQT: tele/sonoff-82589D/LWT = Online (retained) 22:58:50 MQT: cmnd/sonoff-82589D/POWER = 22:58:50 MQT: tele/sonoff-82589D/INFO1 = {"Module":"Sonoff Bridge","Version":"5.14.0","FallbackTopic":"sonoff-82589D","GroupTopic":"sonoffs"} 22:58:50 MQT: tele/sonoff-82589D/INFO2 = {"WebServerMode":"Admin","Hostname":"sonoff-82589D-6301","IPAddress":"192.168.2.127"} 22:58:50 MQT: tele/sonoff-82589D/INFO3 = {"RestartReason":"Power on"} 22:58:58 MQT: tele/sonoff-82589D/STATE = {"Time":"2018-06-02T22:58:58","Uptime":"0T00:00:18","Vcc":3.182,"Wifi":{"AP":1,"SSId":"Jason_Home_WLAN","RSSI":100,"APMac":"00:A0:57:2A:BD:19"}} 22:59:06 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9470,"Low":310,"High":930,"Data":"150554","RfKey":"None"}} 22:59:06 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9500,"Low":310,"High":920,"Data":"15155F","RfKey":"None"}} 22:59:07 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9480,"Low":310,"High":930,"Data":"150554","RfKey":"None"}} 22:59:08 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9490,"Low":320,"High":940,"Data":"150555","RfKey":"None"}} 22:59:08 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9480,"Low":320,"High":930,"Data":"15155F","RfKey":"None"}} 22:59:10 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9460,"Low":320,"High":940,"Data":"151154","RfKey":"None"}} 22:59:10 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9490,"Low":310,"High":920,"Data":"15115F","RfKey":"None"}} 22:59:10 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9490,"Low":310,"High":920,"Data":"15155F","RfKey":"None"}} 22:59:11 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9470,"Low":310,"High":940,"Data":"151454","RfKey":"None"}} 22:59:11 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9530,"Low":290,"High":910,"Data":"15155F","RfKey":"None"}} 22:59:12 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9470,"Low":310,"High":940,"Data":"151514","RfKey":"None"}} 22:59:12 MQT: tele/sonoff-82589D/RESULT = {"RfReceived":{"Sync":9510,"Low":250,"High":860,"Data":"15155F","RfKey":"None"}}

[ErikAndren]

Hmm, I have a 1.0 board and I did not need to swap cables and am powering the board via USB.

[Jason2866]

Yes, that is the difference from 1.0 to 2.0
Described here:
https://github.com/xoseperez/espurna/wiki/Hardware-Itead-Sonoff-RF-Bridge---Direct-Hack

and THX again for your great work!!

[arendst]

@ErikAndren you can easily check for core version using:

#ifdef ARDUINO_ESP8266_RELEASE_2_3_0 
#endif

#ifdef ARDUINO_ESP8266_RELEASE_2_4_0
#endif

#ifdef ARDUINO_ESP8266_RELEASE_2_4_1
#endif

[arendst]

Working on it. Was able to flash. No need to integrate some features....

[arendst]

Released just now