Provides access to the onboard accelerometer, magnetic sensor, and LED.
- Accelerometer
- Magnetic Sensor
- LED
void setup() {
auto&& brd = the_twelite.board.use<CUE>();
}
Accelerometer
The member object (sns_MC3630) of the MC3630 sensor is defined.
Magnetic Sensor
The sensor used in the Door Sensor PAL is a magnetic sensor, with two interrupt input lines only.
const uint8_t CUE::PIN_SNS_NORTH = 16;
const uint8_t CUE::PIN_SNS_OUT1 = 16;
const uint8_t CUE::PIN_SNS_SOUTH = 8;
const uint8_t CUE::PIN_SNS_OUT2 = 8;
CUE::PIN_SNS_NORTH triggers an interrupt when the north pole is detected; CUE::PIN_SNS_SOUTH also triggers on north pole detection.
Configure the following before entering sleep:
pinMode(CUE::PIN_SNS_OUT1, PIN_MODE::WAKE_FALLING);
pinMode(CUE::PIN_SNS_OUT2, PIN_MODE::WAKE_FALLING);
On wake-up, check which GPIO triggered the event:
uint8_t b_north =
the_twelite.is_wokeup_by_dio(CUE::PIN_SNS_NORTH);
uint8_t b_south =
the_twelite.is_wokeup_by_dio(CUE::PIN_SNS_SOUTH);
LED
set_led()
void set_led(uint8_t mode, uint16_t tick)
Controls LED (D1).
mode takes the following parameters. tick specifies the lighting duration [ms]; see the explanation of mode for details.
| Value | Description |
|---|---|
LED_TIMER::BLINK | Blinks the LED. Toggles ON/OFF every tick milliseconds. Resets counter after sleep and starts ON. |
LED_TIMER::ON_RX | Turns on LED for tick milliseconds upon packet reception. |
LED_TIMER::ON_TX_COMP | Turns on LED for tick milliseconds when transmission completes. |
led_one_shot()
void led_one_shot(uint16_t tick)
Turns on LED for a specified duration. Cannot be used simultaneously with set_led().
Watchdog Timer
Resets the external watchdog timer at startup, after waking from sleep, and after a certain time post-start.