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Table of Contents
Summary of Contents for Astromi.ch MGBox V2
- Page 1 MGBox V2 Manual...
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Page 2: Table Of Contents
Page 2 Table of Contents Introduction ............................ 3 Overview ............................4 System Requirements ........................5 General Requirements ....................... 5 Windows Operating Systems ....................5 Other Operating Systems ....................... 5 ASCOM Connections ......................... 5 MGBox usage ..........................6 Windows Application ........................6 Hardware information ........................ -
Page 3: Introduction
Page 3 Introduction Thank you for purchasing MGBox V2 (short for Meteo- and GPS Box, referenced as MGBox throughout this manual), a small, self-contained device that delivers positional information, barometric pressure, temperature, humidity and dew point information with high accuracy. -
Page 4: Overview
Page 4 Overview 1 – RJ10 Port 2 – GPS Status LED LED blinks in 1 second interval if no GPS Fix is acquired LED remains off once a valid GPS Fix is achieved 3 – Mount Status LED ... -
Page 5: System Requirements
FTDI (see link above). For a description of the command protocol please refer to Section Application Interface. ASCOM Connections For connections thru ASCOM the following needs to be installed: ASCOM Platform 6.5SP1 or later Astromi.ch MGBox Driver Version 1.3... -
Page 6: Mgbox Usage
Page 6 MGBox usage MGBox can either be used with or without a computer. If you use the RJ10 interface of MGBox, please check the pinout of your mount’s computer before hookup. We take no responsibility for possible damages resulting from improper configurations! Please see Chapter “RJ10 Interface”... -
Page 7: Hardware Information
Page 7 Hardware information MGBox uses a Bosch Sensortec BME280 Sensor that delivers pressure, temperature and Humidity with very high accuracy. The following is an excerpt from the specifications of the sensor depicting its tolerances and operating limits: Pressure Sensor Parameter Typical Unit... -
Page 8: Microprocessor
Page 8 Microprocessor The “heart” of MGBox is an Atmel ATmega2560V microprocessor that interfaces with the Sensor over the I C protocol. It features 256KB of flash memory, 4KB of EEPROM, 8Kbytes of internal SRAM and 86 general-purpose I/O lines. The ATmega2560 runs at 8Mhz using and external ceramic resonator. -
Page 9: Rj10 Interface
Page 9 RJ10 Interface The RJ10 Interface works almost like a typical RS-232 Interface with the exception that only V+, GND, TX and RX are used. The following picture illustrates the pinout: Conversion from TTL to RS-232 is done by a Max3232ESE+ IC. The supplied cable is a standard RJ10 cable and the pinout is as follows (colors may vary): Important: Please consult your mount manual before connecting MGBox to it. -
Page 10: Application Interface
Page 10 Application Interface This section provides information about how to interface with MGBox from your own application or script. Serial Port settings Use the following settings to connect to MGBox and start receiving data: Baud: 38400 Data-Bits: Stop-Bits: Parity: None Serial Port settings RJ10 With the following settings you can receive data from the RJ10 Serial Port:... -
Page 11: Protocol
Page 11 Protocol MGBox uses, for compatibility reasons, the NMEA 0183 Protocol that is used by various navigation devices. MGBox sends data from the sensor in the following format: $PXDR,P,96276.0,P,0,C,31.8,C,1,H,40.8,P,2,C,16.8,C,3,0.8*39<cr><lf> This breaks down into the following, more readable format: Start of sentence Proprietary sentence Transducer type Sensor type, pressure... -
Page 12: Setting, Resetting, Receiving Calibration Data And Other Commands
Page 12 Additionally, MGBox can also send information about calibration values stored in the EEPROM. Standard Firmware: $PCAL,P,0,T,0,H,0,MM,1,MG,0*69<cr><lf> Start of sentence Proprietary sentence Calibration data Sensor type, pressure Calibration value multiplied by 10, e.g. 2.0 Sensor type, temperature Calibration value multiplied by 10, e.g. 5.0 °C Sensory type, humidity Calibration value multiplied by 10, e.g. -
Page 13: Resetting Calibration Values
Page 13 Resetting calibration values :calreset* :calreset Resets all calibration values End of message indicator Getting calibration values :calget* :calget Retrieves all calibration values End of message indicator Send GPS-Data to Mount :mg,1* Set’s if GPS-Data should be sent to the Mount Enabled (0 = disabled) End of message indicator... -
Page 14: Turning Gps Module Off
Page 14 Turning GPS Module Off :gpsoff* :gpsoff Removes Power from the GPS Module End of message indicator Query Device type :devicetype* :devicetype Queries the Type of the Device connected End of message indicator Troubleshooting If your MGBox does not work as expected, please check the following: ...
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