This is a P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for the TI INA219 current/power monitor IC.
IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.
- I2C connection at up to 1MHz, with alternate address support
- Read shunt voltage
- Read bus voltage
- Read power measured by the chip
- Read current measured by the chip
- Set current reading calibration
P1/SPIN1:
- spin-standard-library
- P1/SPIN1: 1 extra core/cog for the PASM I2C engine (none if the bytecode-based engine is used)
- sensor.power.common.spinh (provided by spin-standard-library)
P2/SPIN2:
- p2-spin-standard-library
- sensor.power.common.spin2h (provided by p2-spin-standard-library)
| Processor | Language | Compiler | Backend | Status |
|---|---|---|---|---|
| P1 | SPIN1 | FlexSpin (6.9.4) | Bytecode | OK |
| P1 | SPIN1 | FlexSpin (6.9.4) | Native/PASM | OK |
| P2 | SPIN2 | FlexSpin (6.9.4) | NuCode | OK |
| P2 | SPIN2 | FlexSpin (6.9.4) | Native/PASM2 | OK |
(other versions or toolchains not listed are not supported, and may or may not work)
- Calibration values (factors used to compute calibrated figures from the raw ADC values; not the value set in the calibration register) are currently hardcoded
- The sensor accepts up to 2.56MHz bus speed, but this isn't supported yet