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stefanbode / Sonoff-Tasmota

Provide ESP8266 based itead Sonoff with Web, MQTT and OTA firmware using Arduino IDE, enhanced with I2C options
GNU General Public License v3.0
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Relay pulse at top or bottom #110

Closed lsd87 closed 5 years ago

lsd87 commented 5 years ago

Setting up a Sonoff T1 EU 2 CH and noticed an odd behavior - When the position is at say 100%, pressing button 1 or toggle 1 via web screen, the relay 1 pulses on/off for about a second. The web screen also changes state to on then off Same happens when at 0% and button/toggle 2 is selected (Assume relay 2 pulses) It looks like the relay is tuned on, then the firmware checks to see if its at say 100% already and then turns the relay off. Maybe the firmware could check to see if the shutter is at the limits already before issuing a output command

Noticed this when playing with single/multi/long button presses (Option1 and 11 and ButtonTopic)

Anyway thanks for creating this fork - it should be implemented/you credited in the standard tasmota release. Leigh

stefanbode commented 5 years ago

Hi, yes this is a known limitation. Currently my algorithm is after tasmota already switches on the relay. The only thing I can do is to switch it off immediately. Most shutter have endstops. Therefore the issue is not really a problem.

lsd87 commented 5 years ago

Hi Stefan, I have some shutters that use micro switches (Great and work fine) and some that have electronic end stops (Problems) - the electronic ones are supposed to be programmed with top and bottom end points but after a while they loose them and use motor over current to act as the end stop. I don't think it would be a problem. Anyway thanks for creating this version really appreciated :-)