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1technophile / OpenMQTTGateway

MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ thermometer compatibility & LoRa.
https://docs.openmqttgateway.com
GNU General Public License v3.0
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Can't read data_length #183

Closed joeschny closed 6 years ago

joeschny commented 6 years ago

Log states that "Processing mi flora data - can't read data_length". Would appreciate to understand why?

Tried to understand well documented code but could not understand how/wher the specific handle for the temp getting is used. I read that a specific service/character UUID must be requested to receive data and i don't find it. Where to find the request in the code to get that data for that characteristic?

Log

ets Jun 8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (S⸮L⸮⸮Ғ⸮Ҫ⸮j

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:956 load:0x40078000,len:0 load:0x40078000,len:13076 entry 0x40078a58 Connecting to (removed) . . . . . . . WiFi ok with manual config credentials OpenMQTTGateway mac: B4:E6:2D:89:14:8D OpenMQTTGateway ip: 192.168.15.93 1883 Connecting to MQTT by IP adress 192.168.15.199 ZgatewayBT ESP32 setup done MQTT connection... BT Task running on core 0 Connected to broker Subscription OK to the subjects Get Name LE-Bose Revolve SoundLink Get ManufacturerData @0 Get RSSI home/BTtoMQTT/0452C7FB932A -74 Get TXPower 10 Get ManufacturerData L Get RSSI home/BTtoMQTT/A0EDCDDB8103 -58 Get ManufacturerData  Get RSSI home/BTtoMQTT/32B5C4D990AE -91 Get ManufacturerData L Get RSSI home/BTtoMQTT/18EE6927025B -65 Get ManufacturerData L Get RSSI home/BTtoMQTT/1C1AC07C6B15 -88 Get ManufacturerData L Get RSSI home/BTtoMQTT/1499E2138791 -82 Get ManufacturerData L Get RSSI home/BTtoMQTT/18620B69552D -94 Get ManufacturerData L Get RSSI home/BTtoMQTT/44B06F6D066F -89 Get ManufacturerData u Get RSSI home/BTtoMQTT/F8042E86B5CB -86 Get ManufacturerData L Get RSSI home/BTtoMQTT/6C448A0E6218 -95 Get Name Flower care Get RSSI home/BTtoMQTT/C47C8D661259 -76 Get service data 310298003c5912668d7cc40d Get service data UUID 0000fe95-0000-1000-8000-00805f9b34fb Processing mi flora data can't read data_length ⸮ Get Name cc:04:b4:0a:71:d8 Get ManufacturerData SN⸮ Get RSSI home/BTtoMQTT/CC04B40A71D8 -86 Remaining memory 53332 E (35755) BT: btc_search_callback BLE observe complete. Num Resp 166

BT Task running on core 0 ....

joeschny commented 6 years ago

just updated firmware to newest version (3.1) and it does not work. Temperature, lux and humidity jump and Service Data jumps cycles 71209800815912668d7cc40d071003200000 71209800845912668d7cc40d041002d500 71209800875912668d7cc40d0910020000 712098008a5912668d7cc40d08100100 712098008d5912668d7cc40d071003200000 71209800905912668d7cc40d041002d500 71209800935912668d7cc40d0910020000 71209800965912668d7cc40d08100100 71209800995912668d7cc40d071003200000 712098009c5912668d7cc40d041002d500 712098009f5912668d7cc40d0910020000 71209800a25912668d7cc40d08100100 71209800a55912668d7cc40d071003200000

Log: E (35790) BT: btc_search_callbaceׁJun 8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3⸮⸮⸮⸮⸮len:956 load:0x40078000,len:0 load:0x40078000,len:13076 entry 0x40078a58 Connecting to removed . . . . . . . WiFi ok with manual config credentials OpenMQTTGateway mac: B4:E6:2D:89:14:8D OpenMQTTGateway ip: 192.168.15.93 1883 Connecting to MQTT by IP adress 192.168.15.199 ZgatewayBT ESP32 setup done BT Task running on core 0MQTT connection...

Connected to broker Subscription OK to the subjects -->Filter for flora 0000fe95-0000-1000-8000-00805f9b34fb found Flora Get Name Flower care Get RSSI home/BTtoMQTT/C47C8D661259 -69 Get service data 712098005d5912668d7cc40d071003110000 Get service data UUID 0000fe95-0000-1000-8000-00805f9b34fb Processing mi flora data 7 17.00 17 Remaining memory 53000 E (35771) BT: btc_search_callback BLE observe complete. Num Resp 186

BT Task running on core 0 -->Filter for flora 0000fe95-0000-1000-8000-00805f9b34fb found Flora Get Name Flower care Get RSSI home/BTtoMQTT/C47C8D661259 -68 Get service data 71209800605912668d7cc40d041002d400 Get service data UUID 0000fe95-0000-1000-8000-00805f9b34fb Processing mi flora data 5 212.00 21.2 Remaining memory 52976

1technophile commented 6 years ago

hmm, what does not work, the esp32 is able to read the mi flora data. You mean that you don't see the value on your broker?

joeschny commented 6 years ago

Apologies, for being so unspecific and thanks for your effort.

I understand now that the Temperature, Humidity and Lux information comes as part of the BLE advertising. A client doesn't have to connect to the server and request separately the information. The information comes with the additional ServiceData.

This information is now being provided to MQTT and i am ok so far. i have one question left. When the advertising info for that service is received why are not all three values at once update? From what i gather every time only one valid information (Temperature, Humidity and Lux) is being provided it seems - is this correct? My thought was i get the service data and update all three items and send three mitt messages.

Thank you again

1technophile commented 6 years ago

Yes you are correct one information is provided per scan. Service data gives each round either temperature, lux, humidity or fertility

joeschny commented 6 years ago

Uff, great, thank you. I got it.