Colibri Carrier Board For IOT

Updated on 04-Aug-2017

Product Specification

Features:

• Compatible with all products in the Colibri family

• 1x WiFi / Bluetooth module

• 1x Micro SD Card Holder

• 1x RGB display connector (18 bpp)

• 1x USB (Power Input + USB OTG)

• On-board battery charging and monitoring circuit

• Push On-Off Switch

• GPS module

• IMU Sensor (9 axis: Accelerometer/Gyroscope/Magnetometer)

• Expansion Connector (using FFC connector)

• Board dimension: 74mm X 50mm

Optional Feature:

• Audio/Mic Connector?

• Ambient light sensor?

Open Issue:

• Select : Resistive/Capacitive Touch Display; it will be ideal if the display size is similar to the size of the board so that it can be stacked above the carrier board.

• Select : WiFi / Bluetooth module. Interface SDIO or USB?

• Select : Li-Ion Battery (Voltage, Capacity, Supplier)

• Select: USB 2.0 complaint battery charger and battery gauge (gas gauge) IC

• Expansion connector pinout

If you think adding or removing any specific feature from the carrier board will improve its usability. Feel free to add your suggestion in the comments.

Hardware Architecture

Please note that the hardware architecture may change based on the final product requirement.

• Power Supply Architecture

Coming soon!

Component Selection

Click Here to view the shared google spreadsheet.

Selected Component:

• IMU Sensor: TDK InvenSense, ICM-20948

Reference

• Toradex Colibri Computer-On-Module

[1] Colibri Computer-On-Module Datasheets

[2] Toradex Carrier Board and Layout Design Guide

[3] Toradex Pinout Designer Tool

[4] Toradex Reference Designs

• Power Supply:

[5] Microchip: AN971 - USB Port-Powered Li-Ion/Li-Polymer Battery Charging

[6] Microchip: AN1088 - Selecting the Right Battery System for Cost-Sensitive Portable Applications while Maintaining Excellent Quality

[7] Maxim Integrated: TUTORIAL 4803 - The Basics of USB Battery Charging: A Survival Guide

[8] Maxim Integrated: APPLICATION NOTE 4169 - Understanding Li+ Battery Operation Lessens Charging Safety Concerns

[9] USB Battery Changing V1.2 Specifications