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Add paragraph about reset pins, and common values.

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jpmeijers 2017-03-09 18:26:26 +01:00
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README.md
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@ -35,8 +35,9 @@ GW_TYPE | imst-ic880a-spi
GW_CONTACT_EMAIL | yourname@yourdomain.com GW_CONTACT_EMAIL | yourname@yourdomain.com
GW_ID | The gateway ID from the TTN console GW_ID | The gateway ID from the TTN console
GW_KEY | The gateway KEY from the TTN console GW_KEY | The gateway KEY from the TTN console
GW_RESET_PIN | 22
On the other hand, for the LinkLabs gateway, which has a built-in GPS, you only need: On the other hand, for the LinkLabs gateway, which has a built-in GPS, you need:
DEVICE ENVIRONMENT VARIABLES DEVICE ENVIRONMENT VARIABLES
@ -47,9 +48,29 @@ GW_CONTACT_EMAIL | yourname@yourdomain.com
GW_ID | The gateway ID from the TTN console GW_ID | The gateway ID from the TTN console
GW_KEY | The gateway KEY from the TTN console GW_KEY | The gateway KEY from the TTN console
GW_GPS | true GW_GPS | true
GW_RESET_PIN | 29
For a more complete list of possible environment variables, see [CONFIGURATION](CONFIGURATION.md). For a more complete list of possible environment variables, see [CONFIGURATION](CONFIGURATION.md).
### Reset pin values
Depending on the way you connect the concentrator board to the Raspberry Pi, the reset pin of the concentrator might be on a different GPIO pin of the Raspberry Pi. Here follows a table of the most common backplane boards used, and the reset pin number you should use in the `GW_RESET_PIN` environment variable.
Note that the reset pin you should define is the physical pin number on the Raspberry Pi. To translate between different numbering schemes you can use [pinout.xyz](https://pinout.xyz/).
Backplane | Reset pin
--------------------------------------
Gonzalo Casas backplane<br \>https://github.com/gonzalocasas/ic880a-backplane<br \>https://www.tindie.com/stores/gnz/ | 22
ch2i<br \>https://github.com/ch2i/iC880A-Raspberry-PI | 11
Linklabs Rasberry Pi Hat | 29 (untested)
Rising HF Board | 26 (untested)
If you get the message
`ERROR: [main] failed to start the concentrator`
after resin.io is finished downloading the application, or when restarting the gateway, it most likely means the `GW_RESET_PIN` you defined is incorrect.
### SPECIAL Note for using the LinkLabs gateway on a Raspberry Pi 3 ### SPECIAL Note for using the LinkLabs gateway on a Raspberry Pi 3
There is a backward incomatibility between the Raspberry Pi 1 and 2 hardware, and Raspberry Pi 3. For Raspberry Pi 3, it is necessary to make a small additional configuration change. There is a backward incomatibility between the Raspberry Pi 1 and 2 hardware, and Raspberry Pi 3. For Raspberry Pi 3, it is necessary to make a small additional configuration change.