0107-10-R1.2
The Renfell Engineering Interface IoT card enables the developer to access some of the I/O interfaces of the mangOH™development board without having to design a custom card. The I2C, SPI, GPIO and UART interfaces on the mangOH™ IoT slot connector are brought out to the 'outside world' on a 20 pin 0.1" pitch connector via isolation and level shifting circuitry. Devices connected to the 'outside' can be powered from either the mangOH™ supplied 3V3 or 5V supplies, or via 2V8 to 5V0 supplies on the 20pin connector. All I/O is disabled by default and each interface can be separately enabled using the on-board jumpers. Additionally, a header block is provided with standard I2C pullups for 3V3 or 5V operation. 64 Bytes of user Read/Write EEPROM storage is provided for storage of configuration constants or other semi-permanent data.
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