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author | Joey Castillo <jose.castillo@gmail.com> | 2021-08-14 19:20:42 -0400 |
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committer | Joey Castillo <jose.castillo@gmail.com> | 2021-08-14 19:20:42 -0400 |
commit | 84e179de88824a6c284d2ccb0ce161d4b3e17d82 (patch) | |
tree | 960fa3ea8962eea313899dde911d345541a45b60 /Sensor Watch BME280 Project/app.c | |
parent | f172763bf2765a74f8e20b5c281b0863bee1fd8c (diff) | |
download | Sensor-Watch-84e179de88824a6c284d2ccb0ce161d4b3e17d82.tar.gz Sensor-Watch-84e179de88824a6c284d2ccb0ce161d4b3e17d82.tar.bz2 Sensor-Watch-84e179de88824a6c284d2ccb0ce161d4b3e17d82.zip |
add beep and light to BME280 app
Diffstat (limited to 'Sensor Watch BME280 Project/app.c')
-rw-r--r-- | Sensor Watch BME280 Project/app.c | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/Sensor Watch BME280 Project/app.c b/Sensor Watch BME280 Project/app.c index 9053ca65..b34e529c 100644 --- a/Sensor Watch BME280 Project/app.c +++ b/Sensor Watch BME280 Project/app.c @@ -11,7 +11,9 @@ typedef enum ApplicationMode { typedef struct ApplicationState { ApplicationMode mode; - bool light_on; + int light_ticks; + bool led_on; + bool needs_beep; uint16_t dig_T1; int16_t dig_T2; int16_t dig_T3; @@ -25,7 +27,7 @@ typedef struct ApplicationState { ApplicationState application_state; - +void cb_light_pressed(); void cb_mode_pressed(); void cb_tick(); @@ -51,6 +53,10 @@ void app_wake_from_deep_sleep() { void app_setup() { watch_enable_buttons(); watch_register_button_callback(BTN_MODE, cb_mode_pressed); + watch_register_button_callback(BTN_LIGHT, cb_light_pressed); + + watch_enable_buzzer(); + watch_enable_led(false); // pin A0 powers the sensor on this board. watch_enable_digital_output(A0); @@ -104,6 +110,25 @@ bool app_loop() { float humidity; char buf[11] = {0}; + if (application_state.needs_beep) { + watch_buzzer_play_note(BUZZER_NOTE_A6, 100); + application_state.needs_beep = false; + } + + if (application_state.light_ticks > 0 && !application_state.led_on) { + watch_set_led_yellow(); + application_state.led_on = true; + } + + if (application_state.led_on && application_state.light_ticks == 0) { + if (watch_get_pin_level(BTN_LIGHT)) { + application_state.light_ticks = 3; + } else { + watch_set_led_off(); + application_state.led_on = false; + } + } + switch (application_state.mode) { case MODE_TEMPERATURE: // take one reading @@ -169,11 +194,9 @@ float read_temperature(int32_t *p_t_fine) { */ float read_humidity(int32_t t_fine) { int32_t adc_value = watch_i2c_read16(BME280_ADDRESS, BME280_REGISTER_HUMID_DATA); - // the sensor returns this as big-endian, so swap the bytes. - adc_value = (adc_value >> 8) | (adc_value << 8); // again, cribbed from Adafruit's BME280 driver. they sell a great breakout board for this sensor! - int32_t v_x1_u32r = v_x1_u32r = (t_fine - ((int32_t)76800)); + int32_t v_x1_u32r = (t_fine - ((int32_t)76800)); v_x1_u32r = (((((adc_value << 14) - (((int32_t)application_state.dig_H4) << 20) - (((int32_t)application_state.dig_H5) * v_x1_u32r)) + ((int32_t)16384)) >> 15) * (((((((v_x1_u32r * ((int32_t)application_state.dig_H6)) >> 10) * (((v_x1_u32r * ((int32_t)application_state.dig_H3)) >> 11) + ((int32_t)32768))) >> 10) + ((int32_t)2097152)) * ((int32_t)application_state.dig_H2) + 8192) >> 14)); @@ -187,8 +210,15 @@ float read_humidity(int32_t t_fine) { void cb_mode_pressed() { application_state.mode = (application_state.mode + 1) % 3; + application_state.needs_beep = true; } void cb_tick() { + if (application_state.light_ticks > 0) { + application_state.light_ticks--; + } } +void cb_light_pressed() { + application_state.light_ticks = 3; +} |