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Float voltage to int (#444)

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* Change voltage float to millivolt integer
* Explain the ADC to milliVolts conversion
This commit is contained in:
Riku Isokoski
2021-07-02 18:30:32 +03:00
committed by GitHub
parent 7075b7f264
commit 38f40034b0
5 changed files with 17 additions and 34 deletions
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17
src/displayapp/screens/BatteryInfo.cpp
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@@ -46,16 +46,9 @@ BatteryInfo::BatteryInfo(Pinetime::Applications::DisplayApp* app, Pinetime::Cont
lv_label_set_align(percent, LV_LABEL_ALIGN_LEFT);
lv_obj_align(percent, nullptr, LV_ALIGN_CENTER, 0, -60);
// hack to not use the flot functions from printf
uint8_t batteryVoltageBytes[2];
batteryVoltageBytes[1] = static_cast<uint8_t>(batteryVoltage); // truncate whole numbers
batteryVoltageBytes[0] =
static_cast<uint8_t>((batteryVoltage - batteryVoltageBytes[1]) * 100); // remove whole part of flt and shift 2 places over
//
voltage = lv_label_create(lv_scr_act(), nullptr);
lv_obj_set_style_local_text_color(voltage, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0xC6A600));
lv_label_set_text_fmt(voltage, "%1i.%02i volts", batteryVoltageBytes[1], batteryVoltageBytes[0]);
lv_label_set_text_fmt(voltage, "%1i.%02i volts", batteryVoltage / 1000, batteryVoltage % 1000 / 10);
lv_label_set_align(voltage, LV_LABEL_ALIGN_CENTER);
lv_obj_align(voltage, nullptr, LV_ALIGN_CENTER, 0, 95);
@@ -129,13 +122,7 @@ void BatteryInfo::UpdateScreen() {
}
lv_obj_align(status, charging_bar, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);
// hack to not use the flot functions from printf
uint8_t batteryVoltageBytes[2];
batteryVoltageBytes[1] = static_cast<uint8_t>(batteryVoltage); // truncate whole numbers
batteryVoltageBytes[0] =
static_cast<uint8_t>((batteryVoltage - batteryVoltageBytes[1]) * 100); // remove whole part of flt and shift 2 places over
//
lv_label_set_text_fmt(voltage, "%1i.%02i volts", batteryVoltageBytes[1], batteryVoltageBytes[0]);
lv_label_set_text_fmt(voltage, "%1i.%02i volts", batteryVoltage / 1000, batteryVoltage % 1000 / 10);
}
bool BatteryInfo::Refresh() {