This application note describes the usage, specifications, connections, and layout of the Mitsumi FG-1442 AN-100 Fuel Gauge Interface Box.
The Mitsumi FG-1442 AN-100 Fuel Gauge Interface Box converts I2C signals from the MM8118 fuel gauge to USB signals for communication with a PC. By connecting the Interface Box to the MM8118 via a communication cable and to a PC via a USB cable, the status of the fuel gauge can be monitored on a computer. Users must download and install the latest VCP Driver for the FTDI Chip before starting to use the device.
| Communication method | I2C to USB |
|---|---|
| Pull-up resistor | 1kΩ |
| Pull-up voltage | 1.8V |
| VOUT | 1.8V output terminal |
| SDA | I2C data input/output terminal |
| SCL | I2C clock input/output terminal |
| GND | GND terminal |
| Microcontroller | PIC24FJ32GB004 |
| USB Controller | FT232RL |
Users need to download and install the latest VCP Driver of FTDI Chip to the target PC.
The pull-up voltage is 1.8V with a 1kΩ resistor.
It is intended for computers, OA units, communication units, instrumentation units, machine tools, industrial robots, AV units, and household electrical appliances.