Difference between revisions of "Battery backup"
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VIBE2 provides an optional battery circuit for standby purposes. | VIBE2 provides an optional battery circuit for standby purposes. | ||
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A 2-pin Connector interface is provided at battery test points TP6 and TP8, with a 10K thermistor R31 mounted on PCB to simulate the thermistor circuit for battery charging. | A 2-pin Connector interface is provided at battery test points TP6 and TP8, with a 10K thermistor R31 mounted on PCB to simulate the thermistor circuit for battery charging. | ||
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Following is a diagram explaining the battery interfaces on VIBE2 : | Following is a diagram explaining the battery interfaces on VIBE2 : | ||
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* Connect a 3.7V Li-Po battery of sufficient capacity with its VBAT to TP6 and GND to TP8. | * Connect a 3.7V Li-Po battery of sufficient capacity with its VBAT to TP6 and GND to TP8. | ||
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* Issue the following commands in console : | * Issue the following commands in console : | ||
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a) Change battery charging range to 0-60 degree C | a) Change battery charging range to 0-60 degree C | ||
# i2cset -f -y 0 0X24 6 0Xb3 b | # i2cset -f -y 0 0X24 6 0Xb3 b | ||
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b) Change battery charging voltage to 4.2V | b) Change battery charging voltage to 4.2V | ||
# i2cset -f -y 0 0X24 5 0Xa0 b | # i2cset -f -y 0 0X24 5 0Xa0 b | ||
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'''NOTE:''' When board is powered up only by battery then Power switch S3 has to be pressed to turn it on. | '''NOTE:''' When board is powered up only by battery then Power switch S3 has to be pressed to turn it on. | ||
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Please refer to image provided below for battery connections | Please refer to image provided below for battery connections | ||
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[[File:IMG_22381.JPG|700px]] | [[File:IMG_22381.JPG|700px]] | ||
Latest revision as of 05:28, 12 July 2016
VIBE2 provides an optional battery circuit for standby purposes.
Instructions
A 2-pin Connector interface is provided at battery test points TP6 and TP8, with a 10K thermistor R31 mounted on PCB to simulate the thermistor circuit for battery charging.
Following is a diagram explaining the battery interfaces on VIBE2 :
Follow the given steps to change the battery charging conditions :
- Connect a 3.7V Li-Po battery of sufficient capacity with its VBAT to TP6 and GND to TP8.
- Issue the following commands in console :
a) Change battery charging range to 0-60 degree C
# i2cset -f -y 0 0X24 6 0Xb3 b
b) Change battery charging voltage to 4.2V
# i2cset -f -y 0 0X24 5 0Xa0 b
NOTE: When board is powered up only by battery then Power switch S3 has to be pressed to turn it on.
Please refer to image provided below for battery connections
