Tasmota can easily be extended by developers using provided function pointers as callback Ids. This document lists the available callback function Ids. See the wiki (https://github.com/arendst/Tasmota/wiki/Sensor-API) for more information.
Callback availability can be checked by searching for either XdrvCall, XsnsCall, XdspCall, XnrgCall and XlgtCall.
The following table lists Callback Ids and their availability for a Driver, Sensor or Energy service.
| Callback Id | Bool | xdrv | xsns | xnrg | xlgt | Description |
|---|---|---|---|---|---|---|
| FUNC_SETTINGS_OVERRIDE | x | Override start-up settings | ||||
| FUNC_PIN_STATE | x | 1 | 2 | At GPIO configuration | ||
| FUNC_MODULE_INIT | x | 1 | 2 | Init module specific parameters | ||
| FUNC_PRE_INIT | 1 | 2 | Once GPIO have been established | |||
| FUNC_INIT | 1 | 3 | 2 | At end of initialisation | ||
| FUNC_LOOP | 1 | 2 | In main loop | |||
| FUNC_EVERY_50_MSECOND | 1 | 2 | ||||
| FUNC_EVERY_100_MSECOND | 1 | 2 | ||||
| FUNC_EVERY_200_MSECOND | x | |||||
| FUNC_EVERY_250_MSECOND | 1 | 3 | 2 | |||
| FUNC_EVERY_SECOND | 1 | 2 | ||||
| FUNC_SAVE_AT_MIDNIGHT | x | At midnight | ||||
| FUNC_SAVE_BEFORE_RESTART | 2 | 1 | Just before a planned restart | |||
| FUNC_AFTER_TELEPERIOD | x | At end of teleperiod | ||||
| FUNC_JSON_APPEND | 2 | 1 | 3 | Extend teleperiod JSON text | ||
| FUNC_WEB_SENSOR | 2 | 1 | 3 | Add sensor data to web GUI | ||
| FUNC_COMMAND | x | 1 | 2 | 3 | 4 | When a command is not recognized |
| FUNC_COMMAND_DRIVER | x | x | When command Driver<id> is executed | |||
| FUNC_COMMAND_SENSOR | x | x | When command Sensor<id> is executed | |||
| FUNC_MQTT_SUBSCRIBE | x | At end of MQTT subscriptions | ||||
| FUNC_MQTT_INIT | x | Once at end of MQTT connection | ||||
| FUNC_MQTT_DATA | x | x | Before decoding command | |||
| FUNC_SET_POWER | x | Before setting relays | ||||
| FUNC_SET_DEVICE_POWER | x | x | Set relay | |||
| FUNC_SHOW_SENSOR | x | When FUNC_JSON_APPEND completes | ||||
| FUNC_ANY_KEY | x | |||||
| FUNC_ENERGY_EVERY_SECOND | x | |||||
| FUNC_ENERGY_RESET | x | |||||
| FUNC_RULES_PROCESS | x | x | Process specific rule | |||
| FUNC_SERIAL | x | 1 | 2 | 3 | Process serial data | |
| FUNC_FREE_MEM | x | Show free memory for debugging | ||||
| FUNC_BUTTON_PRESSED | x | x | When a button is pressed | |||
| FUNC_WEB_ADD_BUTTON | 1 | 2 | Add a Configuration Button to GUI | |||
| FUNC_WEB_ADD_MAIN_BUTTON | 1 | 2 | Add a main button to GUI | |||
| FUNC_WEB_ADD_HANDLER | 1 | 2 | Add a webserver handler | |||
| FUNC_SET_CHANNELS | 2 | 1 | ||||
| FUNC_SET_SCHEME | x |
The numbers represent the sequence of execution
The following table lists all Callback Ids for a Display service.
| Callback Id | Bool | Description |
|---|---|---|
| FUNC_DISPLAY_INIT_DRIVER | ||
| FUNC_DISPLAY_INIT | ||
| FUNC_DISPLAY_EVERY_50_MSECOND | ||
| FUNC_DISPLAY_EVERY_SECOND | ||
| FUNC_DISPLAY_MODEL | x | |
| FUNC_DISPLAY_MODE | ||
| FUNC_DISPLAY_POWER | ||
| FUNC_DISPLAY_CLEAR | ||
| FUNC_DISPLAY_DRAW_FRAME | ||
| FUNC_DISPLAY_DRAW_HLINE | ||
| FUNC_DISPLAY_DRAW_VLINE | ||
| FUNC_DISPLAY_DRAW_LINE | ||
| FUNC_DISPLAY_DRAW_CIRCLE | ||
| FUNC_DISPLAY_FILL_CIRCLE | ||
| FUNC_DISPLAY_DRAW_RECTANGLE | ||
| FUNC_DISPLAY_FILL_RECTANGLE | ||
| FUNC_DISPLAY_TEXT_SIZE | ||
| FUNC_DISPLAY_FONT_SIZE | ||
| FUNC_DISPLAY_ROTATION | ||
| FUNC_DISPLAY_DRAW_STRING | ||
| FUNC_DISPLAY_ONOFF |
The following list shows a typical callback init sequence
CFG: Loaded from flash at FB, Count 1581
xdrv - FUNC_SETTINGS_OVERRIDE
xdrv - FUNC_PIN_STATE
xsns - FUNC_PIN_STATE
xdrv - FUNC_MODULE_INIT
xlgt - FUNC_MODULE_INIT
xdrv - FUNC_PRE_INIT
xnrg - FUNC_PRE_INIT
SRC: Restart
xdrv - FUNC_SET_POWER
xlgt - FUNC_SET_CHANNELS
xdrv - FUNC_SET_DEVICE_POWER
Project tasmota Wemos 2 Version 7.0.0.3(tasmota)-STAGE
xdrv - FUNC_INIT
xsns - FUNC_INIT
I2C: ADS1115 found at 0x48
xdrv - FUNC_LOOP
xsns - FUNC_LOOP
xdrv - FUNC_EVERY_50_MSECOND
xlgt - FUNC_SET_CHANNELS
xsns - FUNC_EVERY_50_MSECOND
xdrv - FUNC_EVERY_100_MSECOND
xsns - FUNC_EVERY_100_MSECOND
xdrv - FUNC_EVERY_250_MSECOND
xsns - FUNC_EVERY_250_MSECOND
xdrv - FUNC_EVERY_SECOND
xsns - FUNC_EVERY_SECOND
WIF: Attempting connection...
WIF: Network (re)scan started...
WIF: Attempting connection...
WIF: Attempting connection...
WIF: Attempting connection...
WIF: Network 0, AP1, SSId indebuurt1, Channel 1, BSSId 24:D3:F2:97:C0:A1, RSSI -86, Encryption 1
WIF: Network 1, AP2, SSId indebuurt2, Channel 5, BSSId A0:AB:1B:7D:42:AC, RSSI -42, Encryption 1
WIF: Network 2, AP-, SSId indebuurt3, Channel 12, BSSId 60:E3:27:58:77:E6, RSSI -84, Encryption 1
WIF: Connecting to AP2 indebuurt2 in mode 11N as wemos2...
WIF: Attempting connection...
WIF: Attempting connection...
WIF: Attempting connection...
WIF: Connected
xdrv - FUNC_WEB_ADD_HANDLER
xsns - FUNC_WEB_ADD_HANDLER
HTP: Web server active on wemos2 with IP address 192.168.2.191
NTP: Drift 0, (UTC) Wed Nov 06 13:57:08 2019, (DST) Sun Mar 31 02:00:00 2019, (STD) Sun Oct 27 03:00:00 2019
APP: Boot Count 500
MQT: Attempting connection...
MQT: Connected
MQT: tele/wemos2/LWT = Online (retained)
MQT: cmnd/wemos2/POWER =
MQT: Subscribe to cmnd/wemos2/#
MQT: Subscribe to cmnd/sonoffs/#
MQT: Subscribe to cmnd/DVES_15568C_fb/#
xdrv - FUNC_MQTT_SUBSCRIBE
MQT: tele/wemos2/INFO1 = {"Module":"Generic","Version":"7.0.0.3(tasmota)","FallbackTopic":"cmnd/DVES_15568C_fb/","GroupTopic":"cmnd/sonoffs/"}
MQT: tele/wemos2/INFO2 = {"WebServerMode":"Admin","Hostname":"wemos2","IPAddress":"192.168.2.191"}
MQT: tele/wemos2/INFO3 = {"RestartReason":"Software/System restart"}
MQT: stat/wemos2/RESULT = {"POWER1":"OFF"}
MQT: stat/wemos2/POWER1 = OFF
MQT: stat/wemos2/RESULT = {"POWER2":"ON"}
MQT: stat/wemos2/POWER2 = ON
xdrv - FUNC_MQTT_INIT
CFG: Saved to flash at FA, Count 1582, Bytes 4096