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jr-tm05s_water_supply_timer [14.08.2020 02:15] – Pascal Suter | jr-tm05s_water_supply_timer [14.08.2020 02:19] (current) – removed Pascal Suter | ||
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- | ====== JR-TM05S Water Supply Timer ====== | ||
- | I recently bought a wifi enabled water supply timer [[https:// | ||
- | I was lucky, it is based on ESP8285 which is 100% compatible with ESP8266 but has more memory! the necessary 4 pins are even routed to some contacts where you just need to plug-in a pin-header and solder it down, to comfortably program the device! the only slightly annoying part is, that the unit is covered in silicone to waterproof it. i think they have done a good job at that.. but we have to peel it off to get to the pin headers. | ||
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- | {{ :: | ||
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- | luckily the only button on the board is connected to GPIO0 which makes it also the flash-mode switch :) | ||
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- | so to prepare the unit, remove the big front-cover sticker and unscre the four screws in the corner, this will split open the case | ||
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- | {{ :: | ||
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- | now remove the board by carefully cutting away some of the white silicone from the back and also remove the silicone where the pi header next to the button is | ||
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- | {{ :: | ||
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- | Pin header next to the button is used to re-program. the pinout is as follows (from pin closest to the outside edge of the board towards the inside of the board): | ||
- | 1.) GND | ||
- | 2.) TX | ||
- | 3.) RX | ||
- | 4.) 3.3V | ||
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- | connect those 4 to a programmer, no additional power supply is needed | ||
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- | press the button on the device while you plug-in the usb programmer, this will start the programming mode | ||
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- | install '' | ||
- | pip3 install esptool | ||
- | make a {{ :: | ||
- | esptool.py -p / | ||
- | re-start programming mode and erase the flash | ||
- | esptool.py -p / | ||
- | re-start the programming mode again and flash the tasmota binary from the latest release | ||
- | esptool.py -p / | ||
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- | unplug and power back on using the power cable that came with the unit, take your cellphone and connect to the tasmotaxyz wifi to configure tasmota | ||
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- | open a web browser and enter http:// | ||
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- | and there you go.. even the gpio pre-config seems to work right away, the button still opens and closes the valve and the toggle button on the web interface does the same :) |