User guide for FTDI FT311D and FT312D demo Android applications, covering installation, interface demos, and configuration.
This guide explains how to load and run the FTDI demo APKs on Android devices and provides example applications for each supported interface of the FT311D and FT312D chips. It includes step‑by‑step instructions for installing the .apk, using UART loopback, GPIO, PWM, I2C and SPI demos, and configuring UART parameters.
The document also contains safety notices, contact information for FTDI worldwide offices, and references to the FT311D and FT312D data sheets. All hardware connections and software settings are described with figures and tables.
| Operating voltage (UART) | 3.3 V |
|---|---|
| Supported baud rates | 300 – 921600 baud |
| Data bits | 7 or 8 |
| Parity options | ODD, EVEN, Mark, Space, None |
| Flow control | None or RTS/CTS |
The UART pins operate at 3.3 V logic levels.