Specifications
Operating Temperature (CPU): | -20°C ~ +70°C |
Connection to PC: | USB (CDC Virtual COM port) |
Power: | USB Powered |
Pressure Accuracy: (0-65°C, 300 to 1100 hPa) |
+/-1 hPa (+/-100 Pa) |
Pressure Range: | 300 - 1100 hPa (30000 - 110000 Pa) |
Temperture Accuracy: | +/-1°C |
Humidity Accuracy: | +/-3 %RH |
Features
- USB Type A Plug.
- Simple ASCII command.
- Using MCU as CDC Virtual Serial Port. (Using usbser.sys at Windows. Native supported by MacOS and most Linux distributions).
- Using BME280 (a single chip sensor) for pressure sensing.
Package Content:
- USB-PA TypeA (BME280) Sensor
Shipping and Payment:
- Accept PayPal Only
- Worldwide shipping via Airmail
Sensor
Serial command
Please open the serial port with baud rate at 115200 and data format as N81. All commands are in ASCII.
Action | Command | Response |
Get Model Name | GI\n |
USB-PA\n |
Get Version | GV\n |
V2.00\n |
Get Pressure | GP\n |
102172.33\n |
Get Temperature | GT\n |
23.90\n |
Get Humidity | GH\n |
48.92\n |
Get Unit Name Default is "SENSOR", can set by user. |
GN\n |
SENSOR\n |
Set Unit Name Up to 8 characters, stored at EEPROM. |
N=name\n |
OK\n |
Turn off LED Indicator Will restore to "Turn on" after restart |
I=0\n |
OK\n |
Turn on LED Indicator | I=1\n |
OK\n |
Resources
- Installation CDC Driver for Windows
- Command Line Interface: Download Windows Binary, Download RaspberryPi3 Binary
Windows Screenshot, Linux Screenshot
When using under Linux, please modify /etc/group to add the username to "dialout" group. Then logout/login again. - CDC driver for Windows asf-sign-inf.zip, cdc64.zip
- Visual Basic Demo: Download Binary
Screenshot - Source code at GitHub