One of the BasicR3 units is on duty controlling my hot tub pump (we don’t need the heater on in Spain in the summer, just the pump during overnight cheap rate), the other is on my bench on test after suffering a mishap (my fault). I ended up replacing the on-off PCB control button as may be obvious in the photo. September 25th, 2021, Update #1: Updated the curl commands to escape double quotation marks ( ") in the -d (HTTP POST data) argument. I also made other minor changes to improve command execution (e.g., setting up environmental variables for IP_SONOFF and IP_HOST), fix typos, and improve readability. The button is still very fragile, so take extra care during assembly and disassembly. Sonoff Basic R3 WiFi Note: SONOFF BASICR2 does NOT have 433Mhz RF receiver module. If you want RF function, please buy SONOFF RFR2 . Documents Inside you will find a redefined, modular design. Sonoff Basic R3 series is divided into 2 parts: the relay board and connectivity interface. The design principle isn’t 100% consistent so I decided to poke around more.

Sep/2021:12:51:30 -0300] "GET /tasmota-lite.bin?deviceid=10011b78f7&ts=1576460931&sign=c2029fdd9d52ed2272c085ba79ffd5a88f11e94c8385f41bb68630de3c7b39b5 HTTP/1.1" 206 4399 "-" "itead-device" 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 Get the info of “device ID”, “Service Type”, “device API interface version” and “device information” via parsing out the device DNS TXT Record. The operation failed and the request body size is too large. Make sure the tasmota firmware is the right size for your device. You should try the tasmota-lite.bin before anything else.I’m currently blogging about the more expensive 16A Shelly One power controller and already this summer I’ve written about the Gosund units, but regular readers will be aware that I’m a long-term fan of Sonoff and their various low cost controllers. My most recent acquisition is a pair of Sonoff BasicR3 Power Controllers and I now have a pair of Sonoff Minis on the way. For flashing the Sonoff Basic, hold the button while connecting the 3.3V power. The LED remains off until the flashing process is done and the board is rebooted. User tips: If the device has been paired with eWeLink APP, reset the device is necessary by long press the pairing button of RM433 remote controller for 5 seconds, then press another 5 seconds for entering Compatible Pairing Mode (AP) 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) Usable GPIO: - GPIO14 is broken out on the PCB adjacent to the GND pin. - GPIO13 - You must remove the bi-colour LED - GPIO04 - You must solder wire to pin on ESP chip Official Sources ~

NAME" : "Sonoff Mini" , "GPIO" :[ 17 , 0 , 0 , 0 , 9 , 0 , 0 , 0 , 21 , 56 , 0 , 0 , 255 ], "FLAG" : 0 , "BASE" : 1 }Fortunately, there are alternatives that require flashing a different firmware onto Sonoff devices. The Tasmota firmware, for example, is a well-known alternative that provides easy integration with existing home-automation servers and let users control devices via multiple methods, such as webUI, HTTP requests, and MQTT, all of which can be accessed either locally or remotely or both. On top of that, it is free and open-source. Traditionally, flashing a Tasmota firmware onto a Sonoff device involves finding a serial connection, soldering a few cables/pins, and connecting the device to a serial-to-USB adapter. However, more often than not, this takes time, knowledge about electronics, and soldering very small components. To flash new firmware, use URL: http://192.168.1.12:8081/zeroconfig/ota_flash and push the correct firmware details: {"deviceid":"10008fxxx", The DIY Mode allows you to use the REST API to connect SONOFF BASICR3 with your existing home automation system. If you are running a firewall on your laptop/PC, make sure to allow incoming TCP/UDP to port 80 as well. Otherwise, other devices on your local network won’t be able to access the webserver. The operation failed and the request body size is too large. The size of the new OTA firmware exceeds the firmware size limit allowed by the device.

The relay board comes with GI-1A-5DH relay capable of 10A. The board has a couple of components removed, which confirms that the same PCB is used for every Sonoff R3 board. Based on the classic BASIC, SONOFF constantly extends the product category, as well as improves and optimize product performance in sequence. Ultimately, BASICR2 with ETL certification comes out. 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. Sep/2021:12:51:30 -0300] "GET /tasmota-lite.bin?deviceid=10011b78f7&ts=5748438&sign=e177370169c2051e73f82c2cd3874da6d333e46ef597da91dc543cc573586b04 HTTP/1.1" 206 4399 "-" "itead-device"I love these devices, what I’m not 100% convinced about is the firmware. For now, the new Sonoff Basic R3 has DIY firmware for those who don’t wish to use the Sonoff Cloud. Updated in September 25th, 2021.) When I first published this tutorial, I included instructions for BusyBox. Since then, however, I have had mixed results with it and switched to using Apache instead. More specifically, to create a minimal webserver using Apache to serve the tasmota-lite.bin firmware file to the Sonoff device, follow these steps: data1={“switch”:”on”,”startup”:”stay”,”pulse”:”on”,”pulseWidth”:2000,”rssi”:-67,”fwVersion”:”3.5.0”} Take extra care when opening Sonoff R3. The button with the long actuator is prone to accidental damage. Sonoff R3 shell consists of 2elements – remove one by one to decrease the risk of breaking the button. You won’t need to do any soldering and won’t even need to open the device. However, we will need to power the device using mains (110-220v AC) power. For the Sonoff Mini, for example, you need to wire it as follows:

The SONOFF devices [1] can work in either eWeLink mode or DIY Mode, In eWeLink mode, the device is connected with eWeLink cloud and controlled by eWeLink APP, while in DIY Mode, device publishes its capability service and is controlled by HTTP Post request. ATTENTION. From this part and on, the tutorial describes procedures that involve working with mains power. If you have not taken the necessary time to learn how to work with it safely, stop right now and ask for someone knowledgeable to assist and teach you. Do not take this warning lightly. Mains power can kill you or set your house on fire or both (or worse). Be safe. 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).The dimmable Light which is connected with D1 will blink continuously (promptly jump 100% to 1%, 1% to 100% … ) ITEAD’s Sonoff Basic R3 has expanded. Apart from the WiFi version that we all know and like, there is an RF (433 MHz) and Zigbee. Since the hardware had changed as well I thought I would take each Sonoff Basic R3 apart and poke inside the modular design. Sonoff Basic R3 series