UPS PIco HV3.0A Firmware Code 040 Print Date 18.08.2017
Designed and Manufactured by PiModules and ModMyPi
www.pimodules.com www.modmypi.com
UPS Pico HV3.0 HAT IR Receiver Interface
TBC
UPS Pico HV3.0 HAT Programmable Auxiliary 5V@750 mA and
3.3V@150 mA Interface
The
UPS PIco HV3.0 HAT
is equipped with Auxiliary and
3.3V@150mA
supply that are
independent from the 5V of the Raspberry Pi®. There
are programmable and battery
backed up (if programmed by user), provide continuously supply even if Raspberry Pi®
is switched off. The Auxiliary
5V@750mA
is over current protected with PPTC fuse on
the
5V@750mA
as also reverse current draw with Schottky diode. Therefore, due to
small voltage drop the final voltage is about 4.85V, instead of the 5.0V. The
3.3V@150mA
is only protected with LDO embedded over current protection. These
Auxiliary and
3.3V@150mA
are addressed to supply devices that need to be running
even if Raspberry Pi® is switched off i.e. USB HUB, PIR Sensor, additional external high
current relay, Add on PCBs with extra hardware etc.
0x06
enable5V
Byte
Common
R/W
Defines usage of the Auxiliary 5V@750mA:
0x00
–
Auxiliary 5V and 3.3V are not battery backed-up
0x01
–
Auxiliary 5V and 3.3V are battery backed-up
Default Values is OFF
Other codes are not allowed
Example of use
sudo i2cset -y 1 0x6B 0x06 0x00
the Auxiliary 5V and 3.3V will be not battery backed-
up and stop working when power will be cut-off on the GPIO
sudo i2cset -y 1 0x6B 0x06 0x01
the Auxiliary 5V and 3.3V will be battery backed-up
and will continue supply also when 5V will be not available on the GPIO
