Kart/Bluetooth

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Latest revision as of 14:49, 18 August 2022

The module is plugged at the center of the motherboard following the silk given orientation and the keying pin header.

The modules head is shaped like a USB to be plugged and used directly in a PC.

Both components connect via UART following a specific protocol.

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-The Bluetooth boards hold a SOC which is programmed as an RS232 modem.
+The [[Kart|kart's]] [[Kart/Motherboard|motherboard]] holds an [https://www.nordicsemi.com/Products/Development-hardware/nrf52840-dongle nrf52840 USB Dongle]
-The also comprise a legacy RS232 port.
+which interfaces with the FPGA via UART and the Smartphone via [https://en.wikipedia.org/wiki/Bluetooth_Low_Energy BLE].
-[[File:Kart bluetooth board.jpg |center|200px|Bluetooth board]]
+[[File:Kart_nrf52840.png|center|500px|Bluetooth module]]
 == Connectors ==
-The long side single row connector is used to program the Bluetooth SOC.
+The module is plugged at the center of the [[Kart/Motherboard|motherboard]] following the silk given orientation and the keying pin header.
-The header connector corresponds to the RS232 port.
+The modules head is shaped like a USB to be plugged and used directly in a PC.
-A flat cable can be crimped with a female header in one side and a female RS232 connector on the other.
-An unmounted 4-pin single row connector provides a differential stereo audio output.
+== Connection between the FPGA and the Bluetooth module ==
+Both components connect via [https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter UART] following a specific [[Kart/serial_link|protocol]].
+The serial port is used for [[Kart/serial_link#Registers|sending the controls
+and receiving the status]] information.
 [[Category:Kart]]