== Connection to the Raspberry ==
TX-20 Meaning RPI Brown TxD Pin 3 (GPIO 2) Red Vcc Pin 4 (+5V) Green DTR Pin 6 (GND) Yellow GND Pin 6 (GND)
When DTR is pulled low (to GND), the device starts sending a data frame every 2 seconds. Each frames last about 49msec, with a bit every 1.2msec.
== Activate I2C Support ==
apt-get install python-smbus apt-get install i2c-tools
raspi-config => Advanced Options => I2C => Yes => Yes
reboot
Check support:
i2cdetect -y 1