Supply USB power to Sonoff via FTDI (e.g. plug in USB to the FTDI, or use a power switch as explained in link above). My assumption was that I use the Sonoff R3 DIY mode to submit POST request without losing the eWeLink integration. It’s something that Yeelight Smart Bulbs do incredibly well. You can use the REST API and take advantage of the app and all available integrations at the same time. When the device information is longer than 249 bytes, the first 249 bytes must be stored in data1, and the remaining bytes are divided by length 249, which are stored in data2, data3, and data4. The complete device information format is a JSON object. Wait for at least 2 minutes. When done, the Tasmota firmware should create a public wireless access point (WAP) with SSID called tasmota_*. Use a wifi-capable device and connect to the WAP.

One or more strings; No exceeded 255 bytes for each string; No exceeded 1300 bytes for the entire TXT record;data1={“switches”:[{“switch”:”on”,”outlet”:0},{“switch”:”off”,”outlet”:1},{“switch”:”off”,”outlet”:2},{“switch”:”off”,”outlet”:3}],”sledOnline”:”on”} Sonoff devices are very popular home-automation devices developed by a Chinese company called ITEAD. By default, they are controlled by a closed-source application developed by ITEAD–called EWeLink–that can be installed onto iOS and Android cellphones, for example, making use of cloud services. However, this makes it hard to integrate with existing home-automation servers, such as Home Assistant and OpenHAB, or to simply control the devices locally–that is, without access to the Internet. Unlike other Sonoffs, this one comes with a CC2530 module to connect with Zigbee hubs. There is no WiFi, but CC2530 will act as a Zigbee router relaying the messages from other devices.

You need to access the serial interface. The four serial pins (3V3, Rx, Tx, GND) are available in the middle of the PCB, right next to the on-board button. Newer versions of the Sonoff Basic device provide five pins below the button, ignore the pin furthest away from the Button (GPIO14 or I02) if available. The square pin right next to the button is the 3.3V line. and once the webserver stops receiving GET requests, you know that it will then start flashing the firmware onto the device’s memory.

MANUALS

I ended up flashing these Sonoffs with Tasmota using the excellent NODEMCU Firmware programmer http://www.nodemcu.com and or course, for putting in the initial WIFI configuration I use YAT – all on my Windows 10 PC. Here’s the BasicR3 with my )not quite long enough) replacement PCB button (the white glue is theirs, not mine). GNU/Linux distro installed on the host machine, preferrably apt-based distros, such as Debian or Ubuntu. I’m not sure why such a convoluted way to something so simple, but I decided to roll with it. I changed the WiFi credentials and I could use this cumbersome tool to toggle the status ON and OFF. It was time to see if I can issue commands.

I wrote this tutorial for GNU/Linux users. That is, unless otherwise specified, the instructions assume that you are running a Linux distribution on your PC/laptop that will be used to interact with (and serve files to) the Sonoff device. If running iOS, you might be able to adapt the procedure more easily than if you were running Windows or other OS. The operation failed and the device does not exist. The device does not support the requested deviceid. That said, it’s possible that this tutorial is partially or completely applicable to other Sonoff devices that can operate in DIY mode. The ones listed here are the ones that ITEAD listed as supported. Additional hardware requirements Inching emulates a “long press of a push-button”. This will enable the relay for a short time then automatically turn the relay off. To use the setting you have to enable it and provide the pulse duration in ms (and increments of 500) in the range of 500 – 36 000 000. (0.5 sec – 10h). Submit the values to URL: http://192.168.1.12:8081/zeroconfig/pulse {"deviceid":"10008fxxx","data":{"pulse":"on","pulseWidth":2000}} txtvers=1”, “ id=[device ID]”, “ type=[device type]”, “ apivers=[device API interface version]”, “ seq=[TXT Record serial number]”, “ data1=[device information]”;User tips: If the device has been paired with eWeLink APP, reset the device is necessary by long press the pairing button for 5 seconds, then press another 5 seconds for entering Compatible Pairing Mode (AP) data1={“switch”: “on”,”mode”: 0,”brightness”: 50,”brightMin”:0,”brightMax”:255,”startup”: “on”,”rssi”:-67,”fwVersion”:”3.5.0”} Both devices are basically the iterations of well known and respected Sonoff Basic which is an ESP8266 based relay. Sonoff devices are popular among the makers, as come with exposed GPIOs (often extra ones) and are flashable with Tasmota (flashing Sonoff Basic) and AFE Firmware (using AFE Firmware).