Battery level with proportional filter and lookup table (#3216)

* Add battery level with lookup table

now uses a lookup table to better calculate battery level of different cells

* LifePo4 and PB battery table - added voltage filter

removed delay from adc reading, added a software filter to smooth out voltage readings. In those applications battery would last hours to days, no sudden change should be expected so a less frequent voltage reading or a more aggressive filtering could be done.
Note: to speed up convergence i initiliazied the last value to the minimum voltage, there are other and better ways to init the filter.

Added LiFePO4 and PB  open circuit volta battery tables,

* Fixed ADC_CTRL , Checks for valid ADC readings

line 230/386 For heltec v3 and heltec tracker a different approach was used with the ADC_CTRL pin, now is more uniform using the same code for the 3 boards.

line 236 Check if the raw reading we are getting is Valid or not, count only the valid readings. This could lead to a division by 0 (improbable) so that's why at line 258 there is a check for that.

* updated OCV values

updated value to not OCV but to very low current, almost the same anyway

* Added Alkaline/Nimh voltage curve

Added Alkaline/Nimh voltage curve for AA/AAA and similar cells

* updates variants for new capacity measurement

* trunk reformatting

* trunk fmt

* Add LTO chemistry

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: code8buster <20384924+code8buster@users.noreply.github.com>

This commit is contained in:

Gabriele Russo

2024-02-16 06:09:57 -06:00

committed by

GitHub

co-authored by

Ben Meadors

code8buster

parent e3c4bc5473

commit 7c9d1b0abf

8 changed files with 109 additions and 77 deletions

									
										variants/station-g1/variant.h
									
		+2
		-4
	
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				@@ -37,10 +37,8 @@

				#define ADC_CHANNEL ADC1_GPIO35_CHANNEL

				#define BATTERY_SENSE_SAMPLES 30 // Set the number of samples, It has an effect of increasing sensitivity.

				#define ADC_MULTIPLIER 6.45

				#define BAT_FULLVOLT 12600

				#define BAT_EMPTYVOLT 8200

				#define BAT_CHARGINGVOLT 12600

				#define BAT_NOBATVOLT 6690

				#define CELL_TYPE_LION // same curve for liion/lipo

				#define NUM_CELLS 3

				// different screen

				#define USE_SH1106