Board-dat/DAS/DAS1069-dat/das1069-dat.md
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link - https://www.electrodragon.com/product/esp8266-wifi-arduino-uart-extension-board/
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-## Version 2
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+## Current Version 2
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![](2023-10-30-16-03-33.png)
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| Jumper Name | Set | Description |
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| -------------- | -------------- | ----------------------------------------------------------- |
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| Flash | ON or OFF | Set flash mode, flash LED will turn on |
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-| Arduino Serial | D1/D0 or D3/D2 | Arduino serial switch between softserial or hardware serial |
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+| Arduino Serial | D1/D0 or D3/D4 | Arduino serial switch between softserial or hardware serial |
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| Serial Switch | | Arduino or standalone output |
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+
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+## ESP Part
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+
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+- Serial selectable connect to arduino Serial D0/D1 or D3/D4
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+
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+## Lora Part
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+
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+## DHT11
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+
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+- Selectable to ESP IO13 or Arduino A0, by backside jumper
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+
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+## Demo code
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+- arduino_uart_esp_at -> arduino send AT commands to ESP8266
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+- arduino_uart_esp_wifi -> "transparent" communicatino in TCP client mode
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+- in https://github.com/Edragon/arduino-esp8266/tree/master/Sketchbook/Hardware
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+