@wutu said in Sonoff - WiFi Wireless Smart Switch for MQTT COAP Smart Home:
@llgb
Hi, I read your post morning, then forum has been out of operation. Something about lost
Ah shit so my post maybe got lost due to backup &restore this morning.
I use this: http://www.aliexpress.com/item/1PCS-CH340G-Serial-Converter-USB-2-0-To-TTL-6PIN-Module-for-PRO-mini-Instead-of/32309334377.html
Hold down the button when connecting the USB, you go into flash mode. But surely you know.
Yes I’ve held down the button, but when I hold it down, there is no response from the board.
If I connect the usb cable without pushing the button, the green LED is blinking but putty is still “dead”. It’s strange that I even can’t type in anything and even don’t see any hieroglyphics.
btw: there are two variants of board. I got the one with 5pin-serial connector (using the first 4, starting with the 3V3 square)