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Updated Hardware Preparation (markdown)

Thomas Dietrich 2017-05-31 20:34:43 +02:00
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Hardware-Preparation.md

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## Hardware Preparation
You need to make the serial programming interface of the Sonoff module / the ESP8266 microchip available. Examples are shown in in [Peter Scargill's blog](http://tech.scargill.net/itead-slampher-and-sonoff) or by [captain-slow.dk](http://captain-slow.dk/2016/05/22/replacing-the-itead-sonoff-firmware/). In most cases the pins are available on the PCB but connectors need to be soldered to allow interfacing. You'll furthermore need a **3.3V FTDI USB-to-Serial Converter/Programmer**.
You need to make the serial programming interface of the Sonoff module / the ESP8266 microchip available. In most cases the pins are available on the PCB but connectors need to be soldered to allow interfacing. You'll furthermore need a **3.3V FTDI USB-to-Serial Converter/Programmer**.
The following table shows the connection for most Sonoff modules:
| Sonoff | Programmer |
|--------------------|------------|
| 1 (VCC) | 3V3 |
| 2 (RX) | TX |
| 3 (TX) | RX |
| 4 (GND) | GND |
| (5 - if available) | |
|Programmer | Sonoff Module |
|------------|--------------------|
| 3V3 | 3V3 / VCC |
| TX | RX |
| RX | TX |
| GND | GND |
Pay attention to the fact, that RX and TX are crossed.
Some Sonoff modules expose a five pin header. The fifth pin is irrelevant for the serial connection. Please check the specific modules pages to find out more.
Examples of the above preparations are shown in [Peter Scargill's blog](http://tech.scargill.net/itead-slampher-and-sonoff) or by [captain-slow.dk](http://captain-slow.dk/2016/05/22/replacing-the-itead-sonoff-firmware/).
### Attention
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## Sonoff Module Specifics
For module specific instructions and restrictions, please see the respective articles:
For module specific instructions and restrictions of the individual devices, please see the respective articles:
* [Sonoff Dual](https://github.com/arendst/Sonoff-Tasmota/wiki/Sonoff-Dual)
* [Sonoff Pow](https://github.com/arendst/Sonoff-Tasmota/wiki/Sonoff-Pow)