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add Minimal hardware Setup for Bootloading and usage to README.md

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Markus Sattler 2015-05-06 18:54:34 +02:00
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README.md
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@ -181,8 +181,30 @@ Libraries that don't rely on low-level access to AVR registers should work well.
#### Upload via serial port ####
Pick the correct serial port.
You need to put ESP8266 into bootloader mode before uploading code (pull GPIO0 low and
toggle power).
You need to put ESP8266 into bootloader mode before uploading code.
#### Minimal hardware Setup for Bootloading and usage ####
ESPxx Hardware
| PIN | Resistor | Serial Adapter |
| ------------- | -------- | -------------- |
| VCC | | VCC (3.3V) |
| GND | | GND |
| TX or GPIO2* | | RX |
| RX | | TX |
| GPIO0 | PullUp | DTR |
| Reset* | | RTS |
| GPIO15* | PullDown | |
| CH_PD | PullUp | |
* Note
- GPIO15 is also named MTDO
- Reset is also named RSBT or REST (adding PullUp improves the stability of the Module)
- GPIO2 is alternative TX for the boot loader mode
ESP01 example:
![ESP01 connect](https://raw.githubusercontent.com/Links2004/Arduino/esp8266/docs/ESP01_connect.jpg)
### Issues and support ###