PCF8574: ports on at startup

betyar commented 4 years ago

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ISSUE DESCRIPTION - TROUBLESHOOTING

A clear description of what the issue is and be as extensive as possible

I am having trouble using a 5V relay module with the PCF8547. It appears there isn't enough voltage to drive the relay, I am measuring only 1.7 volts. The LED indicator on the module is dim showing that the relay has been triggered but there isn't enough voltage to saturate the coil. The same issue occurs if I use a simple LED instead of a relay, it's very dim because of low voltage. For the LED I am using a 220R resistor, the relay trigger is connected directly to the PCF8547 (the relay board itself is powered by a separate 5V connection from the same power source). This setup works no problem when connected to a Wemos GPIO directly.

Another problem is when the system boots the PCF8547 port turns on automatically even though the web GUI indicates that it is off. When I toggle it on and then off again everything is fine, the port is off and is synced with the web GUI. Inverting the ports don't help because they will never be in sync with the web GUI and I don't want the relay to start in a NC state.

Any ideas how to increase the voltage to the PCF8547 ports and to have them not turn on when starting?

REQUESTED INFORMATION

Make sure these boxes are checked before submitting your issue. Thank you

FAILURE TO COMPLETE THE REQUESTED INFORMATION WILL RESULT IN YOUR ISSUE BEING CLOSED

[X] Read the Contributing Guide and Policy and the Code of Conduct
[X] Searched the problem in issues (https://github.com/arendst/Tasmota/issues)
[X] Searched the problem in the wiki (https://github.com/arendst/Tasmota/wiki/Troubleshooting)
[X] Searched the problem in the forum (https://groups.google.com/d/forum/sonoffusers)
[X] Searched the problem in the chat (https://discord.gg/Ks2Kzd4)
[X] Device used (e.g., Sonoff Basic): Wemos Mini ESP-12F
[X] Tasmota binary firmware version number used: 6.6.0.16 stb-1.16(sonoff)
- [X] Pre-compiled
- [ ] Self-compiled
- [ ] IDE / Compiler used: _____
[X] Flashing tools used: esptool.py

[X] Provide the output of this command: Backlog Template; Module; GPIO:

Configuration output here:
17:11:55 CMD: Backlog Template; Module; GPIO
17:11:55 MQT: stat/wemos/RESULT = {"NAME":"Generic","GPIO":[255,255,255,255,255,255,255,255,255,255,255,255,255],"FLAG":15,"BASE":18}
17:11:55 MQT: stat/wemos/RESULT = {"Module":{"0":"Generic"}}
17:11:55 MQT: stat/wemos/RESULT = {"GPIO0":{"0":"None"},"GPIO1":{"5":"I2C SCL"},"GPIO2":{"0":"None"},"GPIO3":{"6":"I2C SDA"},"GPIO4":{"0":"None"},"GPIO5":{"0":"None"},"GPIO9":{"0":"None"},"GPIO10":{"0":"None"},"GPIO12":{"0":"None"},"GPIO13":{"0":"None"},"GPIO14":{"0":"None"},"GPIO15":{"0":"None"},"GPIO16":{"0":"None"}}

[ ] If using rules, provide the output of this command: Backlog Rule1; Rule2; Rule3:
```
Rules output here:
```
[X] Provide the output of this command: Status 0:
```
STATUS 0 output here:
```

17:14:07 MQT: stat/wemos/STATUS = {"Status":{"Module":0,"FriendlyName":["Sonoff"],"Topic":"wemos","ButtonTopic":"0","Power":0,"PowerOnState":3,"LedState":1,"LedMask":"FFFF","SaveData":1,"SaveState":1,"SwitchTopic":"0","SwitchMode":[0,0,0,0,0,0,0,0],"ButtonRetain":0,"SwitchRetain":0,"SensorRetain":0,"PowerRetain":0}} 17:14:07 MQT: stat/wemos/STATUS1 = {"StatusPRM":{"Baudrate":115200,"GroupTopic":"sonoffs","OtaUrl":"http://thehackbox.org/tasmota/release/sonoff.bin","RestartReason":"External System","Uptime":"0T00:10:10","StartupUTC":"2019-11-17T16:03:57","Sleep":50,"CfgHolder":4617,"BootCount":51,"SaveCount":162,"SaveAddress":"F8000"}} 17:14:07 MQT: stat/wemos/STATUS2 = {"StatusFWR":{"Version":"6.6.0.16 stb-1.16(sonoff)","BuildDateTime":"2019-10-09T07:26:57","Boot":31,"Core":"STAGE","SDK":"2.2.2-dev(38a443e)"}} 17:14:07 MQT: stat/wemos/STATUS3 = {"StatusLOG":{"SerialLog":2,"WebLog":2,"MqttLog":0,"SysLog":0,"LogHost":"","LogPort":514,"SSId":["betyar0",""],"TelePeriod":300,"Resolution":"558180C0","SetOption":["00008009","2805C8000100060000005A00000000000000","00000000"]}} 17:14:07 MQT: stat/wemos/STATUS4 = {"StatusMEM":{"ProgramSize":572,"Free":428,"Heap":23,"ProgramFlashSize":1024,"FlashSize":4096,"FlashChipId":"1640EF","FlashMode":3,"Features":["00000809","8FDAE397","043683A0","22B617CD","01001BC0","00000381"],"Drivers":"1,2,3,4,5,6,7,8,9,10,12,16,18,19,20,21,22,24,27,28","Sensors":"1,2,3,4,5,6,7,8,9,10,14,15,17,18,20,22,26,34"}} 17:14:07 MQT: stat/wemos/STATUS5 = {"StatusNET":{"Hostname":"wemos-3959","IPAddress":"192.168.1.115","Gateway":"192.168.1.1","Subnetmask":"255.255.255.0","DNSServer":"8.8.8.8","Mac":"2C:F4:32:20:6F:77","Webserver":2,"WifiConfig":4}} 17:14:07 MQT: stat/wemos/STATUS6 = {"StatusMQT":{"MqttHost":"192.168.1.104","MqttPort":1883,"MqttClientMask":"DVES_%06X","MqttClient":"DVES_206F77","MqttUser":"DVES_USER","MqttCount":1,"MAX_PACKET_SIZE":1000,"KEEPALIVE":30}} 17:14:07 MQT: stat/wemos/STATUS7 = {"StatusTIM":{"UTC":"Sun Nov 17 16:14:07 2019","Local":"Sun Nov 17 17:14:07 2019","StartDST":"Sun Mar 31 02:00:00 2019","EndDST":"Sun Oct 27 03:00:00 2019","Timezone":"+01:00","Sunrise":"08:02","Sunset":"17:08"}} 17:14:07 MQT: stat/wemos/STATUS10 = {"StatusSNS":{"Time":"2019-11-17T17:14:07"}} 17:14:07 MQT: stat/wemos/STATUS11 = {"StatusSTS":{"Time":"2019-11-17T17:14:07","Uptime":"0T00:10:10","UptimeSec":610,"Heap":23,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"POWER":"OFF","Wifi":{"AP":1,"SSId":"betyar0","BSSId":"00:23:CD:11:B1:9C","Channel":6,"RSSI":76,"LinkCount":1,"Downtime":"0T00:00:04","DeepSleep":0,"Heap":24168}}} 17:14:11 MQT: tele/wemos/STATE = {"Time":"2019-11-17T17:14:11","Uptime":"0T00:10:14","UptimeSec":614,"Heap":26,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"POWER":"OFF","Wifi":{"AP":1,"SSId":"betyar0","BSSId":"00:23:CD:11:B1:9C","Channel":6,"RSSI":76,"LinkCount":1,"Downtime":"0T00:00:04","DeepSleep":0,"Heap":27504}}

- [X] Provide the output of the Console log output when you experience your issue; if applicable:
  _(Please use_ ``weblog 4`` _for more debug information)_

Console output here:

00:00:00 CFG: Loaded from flash at FB, Count 159 00:00:00 PCF: Total devices 1, PCF8574 output ports 1 00:00:00 Project sonoff Sonoff Version 6.6.0.16 stb-1.16(sonoff)-STAGE 00:00:00 WIF: Connecting to AP1 betyar0 in mode 11N as wemos-3959... 00:00:04 WIF: Connected 00:00:04 HTP: Web server active on wemos-3959 with IP address 192.168.1.115 17:04:03 MQT: Attempting connection... 17:04:03 MQT: Connected 17:04:03 MQT: tele/wemos/LWT = Online (retained) 17:04:03 MQT: cmnd/wemos/POWER = 17:04:03 MQT: tele/wemos/INFO1 = {"Module":"Generic","Version":"6.6.0.16 stb-1.16(sonoff)","FallbackTopic":"cmnd/DVES_206F77_fb/","GroupTopic":"sonoffs"} 17:04:03 MQT: tele/wemos/INFO2 = {"WebServerMode":"Admin","Hostname":"wemos-3959","IPAddress":"192.168.1.115"} 17:04:03 MQT: tele/wemos/INFO3 = {"RestartReason":"External System"} 17:04:03 MQT: stat/wemos/RESULT = {"POWER":"OFF"} 17:04:03 MQT: stat/wemos/POWER = OFF 17:04:11 MQT: tele/wemos/STATE = {"Time":"2019-11-17T17:04:11","Uptime":"0T00:00:14","UptimeSec":14,"Heap":27,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"POWER":"OFF","Wifi":{"AP":1,"SSId":"betyar0","BSSId":"00:23:CD:11:B1:9C","Channel":6,"RSSI":78,"LinkCount":1,"Downtime":"0T00:00:04","DeepSleep":0,"Heap":28096}} 17:05:24 CMD: cmnd/wemos/POWER 17:05:24 MQT: stat/wemos/RESULT = {"POWER":"OFF"} 17:05:24 MQT: stat/wemos/POWER = OFF 17:05:53 MQT: stat/wemos/RESULT = {"POWER":"ON"} 17:05:53 MQT: stat/wemos/POWER = ON 17:05:54 MQT: stat/wemos/RESULT = {"POWER":"OFF"} 17:05:54 MQT: stat/wemos/POWER = OFF



**(Please, remember to close the issue when the problem has been addressed)**

betyar commented 4 years ago

Update:

The first problem concerning low voltage has been more or less resolved. When I measured 1.7 volts it was with the LED and a 220R resistor attached. Without the LED I got 2.45 volts, so I simply used a smaller resistor than what I would usually use. Meanwhile, I solved the problem with the relay by using a MOFSET between the PCF8547 port and the module's trigger pin.

The second issue unfortunately hasn't been resolved yet. The PCF8547 ports are on at startup while the GUI indicates that it's off, so I still need to turn the port on and off at the beginning. I probably can write a rule to do this, but I don't like the idea of having the relays and LEDs quickly switch on and then off when starting or rebooting the device.

stefanbode commented 4 years ago

I will try on the weekend to reproduce this. I do not see the issue with the release I loaded into my watering equipment

betyar commented 4 years ago

Thanks. By the way, here is the workaround I am currently using. It's a rule which switches all ports on and then off again:

on Power1#Boot do backlog power0 on; RuleTimer1 1 endon on Rules#Timer=1 do power0 off endon

When the system starts the ports are on for about three seconds and then switch off. The web GUI is also subsequently synced as a result.

Since I will be using the PCF8574 on a board with 4 relays connected to lights which can be turned on not only by WiFi but also RF433 as well as a manual switch, it's not that bad because hopefully it doesn't have to be powered on or reset often. Still, when it does (such as in the case of a power failure) it's nevertheless a little strange to have all four sets of lights turn on for a few seconds at the beginning.

yogesh102011 commented 4 years ago

if i make all 8 as output..its working fine with relay. but one problem i am facing is if all the 8 relays are on.. while restarting none of the relay is in onstate. but in web interface it show all are on. if i off one relay all are getting on except the one which is off

stefanbode commented 4 years ago

Ok, this looks like the current state is not send on the init process. I will fix this in the master tasmota and propagate here. Please change to the original tasmota, if possible because nearly all features are now in the main project

yogesh102011 commented 4 years ago

what i have to do now.. what means original tasmota.. if seven relays are on. if i restart no issue all are syns well. if all 8 relays are on..on restart problem arises.. none of the relay will get on. in web interface all the relays will be in on state. if i tried changing any one to off in web ui..it will on the remaining seven relays.

yogesh102011 commented 4 years ago

i compiled from development version

Program Version	8.1.0.4(tasmota)

2020-01-23T00:49:07 2_6_1/2.2.2-dev(38a443e)

github-actions[bot] commented 2 years ago

This issue has been automatically marked as stale because it hasn't any activity in last few weeks. It will be closed if no further activity occurs. Thank you for your contributions.

github-actions[bot] commented 2 years ago

This issue was automatically closed because of being stale. Feel free to open a new one if you still experience this problem.

stefanbode / Sonoff-Tasmota

PCF8574: ports on at startup #208

ISSUE DESCRIPTION - TROUBLESHOOTING

REQUESTED INFORMATION