Tasmota backgound information.
| Module | GPIO00 | GPIO01 | GPIO02 | GPIO03 | GPIO04 | GPIO05 | GPIO12 | GPIO13 | GPIO14 | GPIO15 |
|---|---|---|---|---|---|---|---|---|---|---|
| Sonoff Pow | KEY1 | - | - | - | - | NRG_SEL | REL1 | NRG_CF1 | HLW_CF | LED1 |
| Sonoff Pow R2 | KEY1 | RXD | - | TXD | - | - | REL1 | LED1_INV | - | - |
| Shelly 2 | - | RXD | - | TXD | REL1 | REL2 | SWT1 | - | SWT2 | - |
| Huafan SS | LED1_INV | - | - | LED2_INV | KEY1 | REL1_INV | NRG_CF1 | NRG_SEL | HLW_CF | - |
| KMC 70011 | KEY1 | - | - | - | HLW_CF | NRG_CF1 | NRG_SEL | LED1_INV | REL1 | - |
| Teckin | - | KEY1 | - | LED2_INV | HJL_CF | NRG_CF1 | NRG_SEL_INV | LED1_INV | REL1 | - |
| AplicWDP303075 | - | - | - | KEY1 | HLW_CF | NRG_CF1 | NRG_SEL_INV | LED1_INV | REL1 | - |
| Gosund SP1 v23 | - | LED1_INV | - | KEY1 | HJL_CF | NRG_CF1 | NRG_SEL_INV | LED2_INV | REL1 | - |
| SK03 Outdoor | KEY1 | - | - | - | HLW_CF | NRG_CF1 | NRG_SEL_INV | LED2_INV | LED1_INV | REL1 |
| BlitzWolf SHP | LED2_INV | - | LED1_INV | - | - | HJL_CF | NRG_SEL_INV | KEY1 | NRG_CF1 | REL1 |
| Teckin US | LED2_INV | - | LED1_INV | - | REL1 | HJL_CF | NRG_SEL_INV | KEY1 | NRG_CF1 | - |