pyroscience FireStingO2-Mini-ST, Руководство пользователя

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5 Operation via the UART-Interface
The FireStingO2-Mini-ST is operated via a standard UART
interface at 3.3V levels (5V tolerant) consisting merely of a receive
and a transmit line (connector X1, pins 4+5, see Tab. 1). The
configuration of the UART-interface is as follows:
19200 baud, 8 data bit, 1 stop bit, no parity, no handshake
The baud rate can be changed by a special command of the
communication protocol (refer to the communication protocol for
further information). However, after power cycling the module
always reverts to the standard baud rate of 19200.
There are two principal operation modes possible: (1) the full-
control mode and the (2) auto-mode. Please note that adjusting
the settings and performing any calibration can only be done in the
full-control mode.
5.1 Full-Control Mode
The standard operation mode of the module is the full-control
mode. The necessary electrical connections are shown in Fig. 4.
Fig. 4 Pin assignment in full-control mode
The full-control mode allows exploiting the full functionality of the
module. Each action of the module is triggered by transmitting a