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What is SmartUPS
Connections
Button and LED Indicator
Copyright © 2014 OpenElectrons.com
SmartUPS is Uninterruptible Power Supply & Portable Power for
Raspberry Pi. SmartUPS runs on 3 AA NiMH rechargeable batteries.
1) Power connection (micro-USB):
For input power connect a MicroUSB cable from mains power to
connector 1 in picture above.
2) USB host connection:
Connect a MicroUSB cable from your Pi to USB host connector on
SmartUPS. (at connector labeled 2 in picture above).
3) Data connection:
Connect I2C Access Point Board on GPIO pins of
your Pi, (as shown in adjacent picture) and
connect the 4-pin colored wire from the i2c
connector of that board to i2c connector of
SmartUPS (at connector labeled 3 in picture
above).
4) Press Button:
This button can be used to power SmartUPS on and off. The button
clicks can also be read by your Pi over the I2C interface.
5) LED indicator
LED will blink to show status of the SmartUPS. See LED indications
below.
SmartUPS
User Guide
1/7
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Table of Contents
Summary of Contents for OpenElectrons.com SmartUPS
- Page 1 Button and LED Indicator 4) Press Button: This button can be used to power SmartUPS on and off. The button clicks can also be read by your Pi over the I2C interface. 5) LED indicator LED will blink to show status of the SmartUPS. See LED indications below.
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Page 2: Led Indications
Startup and Shutdown options below. ** Currently supported chemistry: NiMH LED indications Flashing Meaning Red, Green, and Blue SmartUPS is starting up and button must be pressed once to initialize I2C communication and send output power. White occasional Normal operation, battery is full. - Page 3 **Start up options are designed for automated operation. When SmartUPS is manually shutdown (by pressing and holding the button until it power's off), upon power restotation to SmartUPS, you will have to press the button to power up your Pi.
- Page 4 Shutdown Options Shutdown Time Raspberry Pi will shutdown automatically after a user defined time once the main power is disconnected from the SmartUPS. A value of 0 (zero) will not shutdown the Raspberry Pi until the battery status reaches 'Critical'. Verbose...
- Page 5 The pins on the boards are as follows: Pin with white square paint mark I2CAPB Ground SmartU Ground I2C Bus address Factory Default Address: 0x24 Changing the I2C Bus Address: Address change instructions can be found at http://openelectrons.com/pages/52 Copyright © 2014 OpenElectrons.com...
- Page 6 APPENDIX A - Advanced Information I2C Registers: The SmartUPS appears as a set of registers as follows: Register Read Write Firmware version – Vxxxx 0x00- 0x07 Vendor Id – Openelec 0x08- 0x0f 0x10- Device ID – SmartUPS 0x17 0x41 Command...
- Page 7 Discharged – battery is fully discharged Fault – battery is dead or missing or thermistor is missing Daisy chaining SmartUPS: You can daisy chain multiple SmartUPS via the USB ports. I2C connections are only needed for the one closest to your Pi. Upgrading SmartUPS firmware: SmartUPS firmware is upgradeable through the Raspberry Pi.
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