OZWI Smart Plug: Difference between revisions
Created page with "thumb ==Description== This is a dirt cheap "smart" plug with ESP8266 inside. It's designed for 230V and 10A max current, but other regional versions exist." |
No edit summary |
||
| Line 2: | Line 2: | ||
==Description== | ==Description== | ||
This is a dirt cheap "smart" plug with ESP8266 inside. It's designed for 230V and 10A max current, but other regional versions exist. | This is a dirt cheap "smart" plug with ESP8266 inside. It's designed for 230V and 10A max current, but other regional versions exist. | ||
==What's inside== | |||
There's an unknown ESP8266 module, YUANZE Y32F-SS-105HM Relay<ref>[https://www.lcsc.com/product-detail/Power-Relays_YUANZE-RELAY-Y3F-SS-105D_C674561.html LCSC page for the relay]</ref> and power supply components. | |||
[[File:OZWIplug inside1.jpg|frameless]][[File:OZWIplug inside2.jpg|frameless]] | |||
==ESP8266 Board Pinout== | |||
[[File:OZWIplug pins.png|frameless]] | |||
==Flashing custom firmware== | |||
You'll need to connect some kind of UART interface device to your PC or other capable device. '''RX''' pin of this device goes to board pin marked "'''U0 TX'''", '''TX''' pin -- to "'''U0 RX'''". '''GND''' to '''GND'''. | |||
Connect '''GND''' and '''3.3V''' pins from diagram above to 3.3V PSU (up to 0.2A was needed during my test). | |||
Connect '''GPIO0''' to '''GND''' and power on the device with PSU. | |||
Flash the chip using [https://github.com/espressif/esptool ESPTool] or other preferred method. | |||
Remove the power and disconnect GPI0 tie to the ground. | |||
Done! | |||
==Example ESPHome config== | |||
<syntaxhighlight lang="yaml"> | |||
substitutions: | |||
display_name: "ozwi-plug" | |||
friendly_name: "ozwi Smart Plug" | |||
esphome: | |||
name: "ozwi-plug" | |||
esp8266: | |||
board: esp01_1m | |||
# Enable logging | |||
logger: | |||
# Enable Home Assistant API | |||
api: | |||
ota: | |||
wifi: | |||
ssid: !secret wifi_ssid | |||
password: !secret wifi_password | |||
on_connect: | |||
- light.turn_on: blue_led | |||
on_disconnect: | |||
- light.turn_off: blue_led | |||
ap: | |||
ssid: "${display_name} Fallback Hotspot" | |||
password: !secret wifi_AP_password | |||
ap_timeout: 3min | |||
captive_portal: | |||
output: | |||
- platform: gpio | |||
pin: GPIO4 | |||
inverted: False | |||
id: red_led_gpio | |||
- platform: gpio | |||
pin: GPIO14 | |||
inverted: False | |||
id: blue_led_gpio | |||
- platform: gpio | |||
pin: | |||
number: GPIO12 | |||
inverted: false | |||
id: relay1 | |||
binary_sensor: | |||
- platform: gpio | |||
internal: true | |||
pin: | |||
number: GPIO13 | |||
mode: INPUT_PULLUP | |||
inverted: true | |||
name: ${display_name} Switch | |||
on_press: | |||
- switch.toggle: load | |||
light: | |||
- platform: binary | |||
name: "Red LED" | |||
id: red_led | |||
internal: true | |||
output: red_led_gpio | |||
- platform: binary | |||
name: "Blue LED" | |||
id: blue_led | |||
internal: true | |||
output: blue_led_gpio | |||
switch: | |||
- platform: output | |||
name: ${friendly_name} Load | |||
id: load | |||
# internal: true | |||
output: relay1 | |||
on_turn_on: | |||
- light.turn_on: red_led | |||
on_turn_off: | |||
- light.turn_off: red_led | |||
</syntaxhighlight> | |||
