Difference between revisions of "X1202 Hardware"
Jump to navigation
Jump to search
(No difference)
|
Latest revision as of 15:13, 7 May 2024
Interface Schematic
Raspberry Pi GPIO used
PIN# | GPIO | Functions |
---|---|---|
3 | GPIO2 | I2C-SDA, battery fuel-gauge systems -reading battery voltage and percentage |
5 | GPIO3 | I2C-SCL, battery fuel-gauge systems -reading battery voltage and percentage |
31 | GPIO6 | AC power loss & power adapter failture detection, Low-power supply failed, High-power supply OK |
36 | GPIO16 | Control battery charging, High-charging disabled, Low-charging enabled |
Battery voltage level indicators
Battery voltage range (V) | D1 | D2 | D3 | D4 | Remark |
---|---|---|---|---|---|
3.87-4.2 | ON | ON | ON | ON | discharging levels of 100% |
3.7-3.87 | ON | ON | ON | OFF | discharging levels of 75% |
3.55-3.7 | ON | ON | OFF | OFF | discharging levels of 50% |
3.4-3.55 | ON | OFF | OFF | OFF | discharging levels of 25% |
Below 3.4 | OFF | OFF | OFF | OFF | low battery |