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Updated Sonoff RF Bridge 433 (markdown)

Michael Ingraham 2019-03-02 09:01:22 -05:00
parent 1a8b8a6a75
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Sonoff-RF-Bridge-433.md

@ -70,12 +70,13 @@ See [Supported Commands](Commands#sonoff-rf-bridge) for available Sonoff RF Brid
7. Put the ON/OFF switch on the board back to 'ON' to enable the RF again. 7. Put the ON/OFF switch on the board back to 'ON' to enable the RF again.
### R2 Board only Hardware Preparation ### R2 Board only Hardware Preparation
<img src="https://user-images.githubusercontent.com/34340210/53682776-39f49700-3cc7-11e9-9184-4cecf2a3a4c3.png" width="250" align="right" />
_This section applies only to the R2 revision of the Sonoff RF Bridge and **only** if you want to use USB for powering the device during EFM flash process._ _This section applies only to the R2 revision of the Sonoff RF Bridge and **only** if you want to use USB for powering the device during EFM flash process._
The R2 revision boards connect the GPIO4 and GPIO5 pins to the USB data lines of the power connector. Compliant USB chargers/power supplies are expected to short the two pins together, which is no good. These lines are not used by the original firmware, nor by Tasmota. The traces toward the USB power connector need to be cut to avoid interference by the USB wiring. Removing these connections does not interfere with the normal Bridge functionality. The R2 revision boards connect the GPIO4 and GPIO5 pins to the USB data lines of the power connector. Compliant USB chargers/power supplies are expected to short the two pins together, which is no good. These lines are not used by the original firmware, nor by Tasmota. The traces toward the USB power connector need to be cut to avoid interference by the USB wiring. Removing these connections does not interfere with the normal Bridge functionality.
![](https://user-images.githubusercontent.com/34340210/53682776-39f49700-3cc7-11e9-9184-4cecf2a3a4c3.png)
## Portisch Firmware Specific Usage ## Portisch Firmware Specific Usage
These sections only apply to the custom Portisch firmware. These sections only apply to the custom Portisch firmware.