DigitalInfinity/ESP32-PaxCounter
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

battery level calculation fixes

Browse Source
This commit is contained in:
Klaus K Wilting 2020-04-13 15:07:27 +02:00
parent 0befd7e5d5
commit 1e8671984c
5 changed files with 53 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/lorawan.h
View File

@ -32,6 +32,7 @@ void os_getDevEui(u1_t *buf);
void lora_send(void *pvParameters);
void lora_enqueuedata(MessageBuffer_t *message);
void lora_queuereset(void);
void lora_setBattLevel(uint8_t batt_percent);
void IRAM_ATTR myEventCallback(void *pUserData, ev_t ev);
void IRAM_ATTR myRxCallback(void *pUserData, uint8_t port, const uint8_t *pMsg,
size_t nMsg);

15
src/cyclic.cpp
View File

@ -67,16 +67,11 @@ void doHousekeeping() {
// read battery voltage into global variable
#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
batt_level = read_battlevel();
switch (batt_level) {
case MCMD_DEVS_EXT_POWER:
ESP_LOGI(TAG, "Battery: external power");
break;
case MCMD_DEVS_BATT_NOINFO :
ESP_LOGI(TAG, "Battery: unknown state");
break;
default:
ESP_LOGI(TAG, "Battery: %d%%", batt_level);
}
ESP_LOGI(TAG, "Battery: %d%%", batt_level);
#if (HAS_LORA)
// to come with future LMIC version
// lora_setBattLevel(batt_level);
#endif
#ifdef HAS_PMU
AXP192_showstatus();
#endif

12
src/display.cpp
View File

@ -281,16 +281,12 @@ void dp_drawPage(time_t t, bool nextpage) {
// line 4: Battery + GPS status + Wifi channel
// B:a.bcV Sats:ab ch:ab
#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
switch (batt_level) {
case MCMD_DEVS_EXT_POWER:
dp_printf("ext.Pwr ");
break;
case MCMD_DEVS_BATT_NOINFO:
if (batt_level == 0)
dp_printf("No batt ");
break;
default:
else if (batt_level < 100)
dp_printf("B:%3d%% ", batt_level);
}
else
dp_printf("ext.Pwr ");
#else
dp_printf(" ");
#endif

34
src/lorawan.cpp
View File

@ -459,6 +459,40 @@ void myEventCallback(void *pUserData, ev_t ev) {
ESP_LOGD(TAG, "%s", lmic_event_msg);
}
void lora_setBattLevel(uint8_t batt_percent) {
// set the battery value to send by LMIC in MAC Command
// DevStatusAns. Available defines in lorabase.h:
// MCMD_DEVS_EXT_POWER = 0x00, // external power supply
// MCMD_DEVS_BATT_MIN = 0x01, // min battery value
// MCMD_DEVS_BATT_MAX = 0xFE, // max battery value
// MCMD_DEVS_BATT_NOINFO = 0xFF, // unknown battery level
// we calculate the applicable value from MCMD_DEVS_BATT_MIN to
// MCMD_DEVS_BATT_MAX from bat_percent value
uint8_t lmic_batt_level;
if (batt_percent == 0)
lmic_batt_level = MCMD_DEVS_BATT_NOINFO;
else
#ifdef HAS_PMU
if (pmu.isVBUSPlug())
lmic_batt_level = MCMD_DEVS_EXT_POWER;
#else
if (batt_percent > 100)
lmic_batt_level = MCMD_DEVS_EXT_POWER;
#endif // HAS_PMU
else
lmic_batt_level = static_cast<uint8_t>(
(float)batt_percent /
(float)(MCMD_DEVS_BATT_MAX - MCMD_DEVS_BATT_MIN + 1) * 100.0f);
LMIC_setBattLevel(lmic_batt_level);
ESP_LOGD(TAG, "lmic_batt_level = %d", lmic_batt_level);
}
// event EV_RXCOMPLETE message handler
void myRxCallback(void *pUserData, uint8_t port, const uint8_t *pMsg,
size_t nMsg) {

51
src/power.cpp
View File

@ -212,56 +212,23 @@ uint16_t read_voltage(void) {
uint8_t read_battlevel() {
// return the battery value as sent in MAC Command
// DevStatusAns. Available defines in lorabase.h:
// MCMD_DEVS_EXT_POWER = 0x00, // external power supply
// MCMD_DEVS_BATT_MIN = 0x01, // min battery value
// MCMD_DEVS_BATT_MAX = 0xFE, // max battery value
// MCMD_DEVS_BATT_NOINFO = 0xFF, // unknown battery level
// we calculate the applicable value from MCMD_DEVS_BATT_MIN to
// MCMD_DEVS_BATT_MAX from bat_percent value
// return the battery level in values 0 ... 255 [percent],
// values > 100 probably mean external power, depending on hardware
const uint16_t batt_voltage_range = BAT_MAX_VOLTAGE - BAT_MIN_VOLTAGE;
const uint8_t batt_level_range = MCMD_DEVS_BATT_MAX - MCMD_DEVS_BATT_MIN + 1;
const int batt_voltage = read_voltage() - BAT_MIN_VOLTAGE;
const uint8_t batt_percent =
(batt_voltage > 0)
? (float)batt_voltage / (float)batt_voltage_range * 100.0
: MCMD_DEVS_BATT_NOINFO;
uint8_t lmic_batt_level;
const uint16_t batt_voltage = read_voltage();
float batt_percent_fl = (float)(batt_voltage - BAT_MIN_VOLTAGE) /
(float)(BAT_MAX_VOLTAGE - BAT_MIN_VOLTAGE) * 100.0f;
const uint8_t batt_percent = static_cast<uint8_t>(batt_percent_fl);
ESP_LOGD(TAG, "batt_voltage = %dmV / batt_level = %u%%",
batt_voltage + BAT_MIN_VOLTAGE, batt_percent);
if (batt_percent != MCMD_DEVS_BATT_NOINFO)
#ifdef HAS_PMU
lmic_batt_level = pmu.isVBUSPlug() ? MCMD_DEVS_EXT_POWER
: (float)batt_percent /
(float)batt_level_range * 100.0;
#else
lmic_batt_level = (float)batt_percent / (float)batt_level_range * 100.0;
#endif // HAS_PMU
else
lmic_batt_level = MCMD_DEVS_BATT_NOINFO;
// set battery level value for lmic stack
#if (HAS_LORA)
// LMIC_setBattLevel(lmic_batt_level);
#endif
ESP_LOGD(TAG, "batt_voltage = %dmV / batt_percent = %u%%", batt_voltage,
batt_percent);
return batt_percent;
}
bool batt_sufficient() {
#if (defined HAS_PMU || defined BAT_MEASURE_ADC)
switch (batt_level) {
case MCMD_DEVS_EXT_POWER:
return true;
case MCMD_DEVS_BATT_NOINFO:
return true;
default:
return (batt_level > OTA_MIN_BATT);
}
return (batt_level > OTA_MIN_BATT);
#else
return true; // we don't know batt level
#endif