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R1 Neo - Added OCV_ARRAY from measured discharge curve testing + update ADC multiplier (#8716) (#8840)

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* Added OCV_ARRAY from measured discharge curve testing and update ADC multiplier

The ADC resistor divider ratio is 0.6 -> multiplier should be 1/0.6 ~=1.667

We data logged a full discharge curve at constant 100mA draw over 15hours to get a realistic voltage curve for battery SoC measurements.

* Remove power.h in favor of variant.h

---------

Co-authored-by: simon-muzi <simon@muzi.works>
Co-authored-by: Jason P <applewiz@mac.com>
This commit is contained in:
Jonathan Bennett
2025-12-02 09:49:19 -06:00
committed by GitHub
parent d2539956a9
commit 42e56ae926
2 changed files with 2 additions and 3 deletions
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2
src/power.h
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@@ -34,8 +34,6 @@
#define OCV_ARRAY 4200, 3876, 3826, 3763, 3713, 3660, 3573, 3485, 3422, 3359, 3300
#elif defined(SEEED_SOLAR_NODE)
#define OCV_ARRAY 4200, 3986, 3922, 3812, 3734, 3645, 3527, 3420, 3281, 3087, 2786
#elif defined(R1_NEO)
#define OCV_ARRAY 4330, 4292, 4254, 4216, 4178, 4140, 4102, 4064, 4026, 3988, 3950
#else // LiIon
#define OCV_ARRAY 4190, 4050, 3990, 3890, 3800, 3720, 3630, 3530, 3420, 3300, 3100
#endif

3
variants/nrf52840/r1-neo/variant.h
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@@ -132,7 +132,8 @@ static const uint8_t SCK = PIN_SPI_SCK;
#undef AREF_VOLTAGE
#define AREF_VOLTAGE 3.0
#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
#define ADC_MULTIPLIER 1.73
#define ADC_MULTIPLIER 1.667
#define OCV_ARRAY 4200, 4020, 4000, 3940, 3870, 3820, 3750, 3630, 3550, 3450, 3100
#define HAS_RTC 1