The Milli Dev Kit (aka Milli Shield) exposes this type of header as shown on the Dev Kit Schematics.Connection can use the FTDI cable TTL-232R-RPi “USB to TTL RS232 Cable for Raspberry Pi Platform” (see datasheet) which can be purchased here.no 3.3 V connection) if powered via the serial console. For header and pin design refer to the drawing Samtec # TSW-104-07-G-S.Itron stronglhy advises a 4-pin 0.1” spacing, single-row, through hole header.Pin 3: TXD – Milli Pin 18 (referenced as GPIO27) Pin 2: RXD – Milli Pin 14 (referenced as GPIO26) USB connector) cable like the TTL-232R-RPi is used Pin 1: 3.3 V – any 3.3V power source although not necessary or used if a “bus powered” (e.g. The header should include the following pins (refer to the Milli Datasheet for additional information): Firmware image management for conducting various hardware tests or for running a Milli self test during manufacturing, certification testing, field testing, troubleshooting, or as part of the RMA process.Ī 4-pin header is an integral part of any product PCBA that utilizes the Milli.Fast hardwired firmware update during manufacturing, in the warehouse, or even in the field.Fast hardwired configuration (aka personalization) during board, unit and end device manufacturing.This header is required for each of the following: Exposure of the "configuration UART" pins through a header is strongly recommended.
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