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75 lines
3.8 KiB
Markdown
75 lines
3.8 KiB
Markdown
# ARK Electron Microhard Serial Telemetry Radios
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_ARK Electron Microhard Serial Telemetry Radios_ integrate the [Microhard Pico Serial](https://microhardcorp.com/P900.php) P900 RF module.
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This can be used to enable MAVLink communication between a radio on a vehicle and a GCS.
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Microhard Pico Serial radios are (up to) 1 Watt output radios that support point to point, point to multi-point, and mesh modes.
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The Microhard Pico radios can also be ordered with AES-256 encryption.
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The approximate range with output power set to 1W is 8km (5miles) when using default settings.
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A single ground station radio can be used to communicate with multiple vehicles using point to multi-point or mesh.
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Vehicles must have different MAVLINK IDs.
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## 구매처
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- [1W 900MHz Serial Telemetry Radio](https://arkelectron.com/product/1w-900mhz-serial-telemetry-air-radio/) (vehicle)
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- [1W 900MHz USB Serial Telemetry Radio](https://arkelectron.com/product/1w-900mhz-serial-telemetry-ground-radio/) (ground station)
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- [1W 2.4GHz Serial Telemetry Radio](https://arkelectron.com/product/1w-2400mhz-serial-telemetry-radio/) (vehicle)
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- [1W 2.4GHz USB Serial Telemetry Radio](https://arkelectron.com/product/1w-2400mhz-usb-serial-telemetry-radio/) (ground station)
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## Connecting
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### Vehicle Radio
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Connect the vehicle radio to the flight controller `TELEM1` port.
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A Pixhawk-standard 6 pin JST GH telemetry cable is supplied for this purpose.
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The radio can be powered by the telemetry cable if the output power is set to less than 100mW.
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For higher output levels, the radio must be separately powered via the 2 Pin Molex Nano-Fit (i.e. from a battery).
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### Ground Station Radio
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Connect the ground radio to the ground station via USB C.
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The radio does not need to be separately powered when using USB PD (1W power can be supplied).
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## Setup/Configuration
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The radios are default-configured to use peer-to-peer mode and a baud rate of 57600.
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This allows them to connect to the PX4 `TELEM1` port and _QGroundControl_ **without any further configuration**.
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:::info
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You can use a different baud rate, mode or flight controller port.
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The only "requirement" is that the ground radio, air radio, PX4, and QGroundControl must all be set to the same baud rate.
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:::
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[Microhard Serial Telemetry Radios > Configuration](../telemetry/microhard_serial.md#configuration) explains how to configure the radios, _QGroundControl_, and PX4.
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The ARK Electron radios must be connected to the computer running the _PicoConfig_ configuration tool as described below:
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- For vehicle radio configuration you will have to connect an FTDI adapter between the radio's 3 pin JST-GH Config port and a Windows PC running _Pico Config_ (the radio must be powered, which you can do from battery or the data connection to the flight-controller's `TELEM1` port).
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_Pico Config_ will automatically detect the radio.
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Adjust the baud rate setting to match PX4 (and the ground station radio).
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- The ground station radio USB C connection can be used for configuring the radio (as well as for telemetry data).
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_Pico Config_ will automatically detect and connect to the configuration port.
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Adjust the settings so that the baud rate matches PX4.
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Once the radios and PX4 are all configured to use the same baud rate you can connect QGroundControl to the vehicle via the radio.
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### Default Configuration
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The default radio configuration as shipped is shown in _PicoConfig_ below.
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## 추가 정보
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- [Pico Config 1.7](https://arkelectron.com/wp-content/uploads/2021/04/PicoConfig-1.7.zip) - Radio configuration tool
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