The Sonoffs that I have are the rf433 versions. These don't appear to have R21 populated on the circuit board and so the switch doesn't pull down GPIO0 to get into flash-mode. One side of R21 goes to R9 - it's the other side of R21 which needs to go to ground on power-up to get to flash-mode. I believe you can put a short between the solder pads on R21 to get the switch to pull GPIO0 low, but you may lose the rf433 functionality.
I might be mistaken, but the FTDI-Dongle you are using has a 3.3V Jumper for supplying 3.3v instead of 5v. So you don't need the workaround with the arduino mega.
How do i program Sonoff RF after pushing radio button to switch ON the power for 15 min and then automatically switch OFF after 15 min ? Is it possible?
Great secrets! Thanks!
Brillant Man, great help!
....it works on Alexa now as well.....without changing software... Sonoff updates the software online for you...thanks for your video....
Thanks a lot :)
For future viewers researching Sonoffs, Itead (the manufacturer) makes the schematics available on their website. Just Google Sonoff schematics.
Use a sonoff with 433 MHZ option and it’s included to flash the red part of the building LED that indicates the 433MHz learning
can i replace reley with one that can handle 30A
You should watch superhouse to see everything Sonoff
Great Video.
The Sonoffs that I have are the rf433 versions. These don't appear to have R21 populated on the circuit board and so the switch doesn't pull down GPIO0 to get into flash-mode. One side of R21 goes to R9 - it's the other side of R21 which needs to go to ground on power-up to get to flash-mode. I believe you can put a short between the solder pads on R21 to get the switch to pull GPIO0 low, but you may lose the rf433 functionality.
I might be mistaken, but the FTDI-Dongle you are using has a 3.3V Jumper for supplying 3.3v instead of 5v. So you don't need the workaround with the arduino mega.
How do i program Sonoff RF after pushing radio button to switch ON the power for 15 min and then automatically switch OFF after 15 min ? Is it possible?
Olá, vc tem o código do sonoff ? Estou interessado ver como funciona interrupção.
hi the led on the sonoff has 3 leads can the colours be altered as its a tri color led
dont know much but that red led design for 433mhz ( some kind of add on )
I guess ewelink wasn't available back then?
Hi , you can share the code you use to flashed?
you sound a lot like the dude with that big car channel
Would it be possible to connect this adafruit momentary RF receiver -->
what? the LED is a 2 colors LED, with 3 pins all connected; please check the info before to spread wrong ones!