mirror of https://github.com/ArduPilot/ardupilot
101 lines
3.5 KiB
Plaintext
101 lines
3.5 KiB
Plaintext
// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
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static void init_barometer(void)
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{
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gcs_send_text_P(SEVERITY_LOW, PSTR("Calibrating barometer"));
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barometer.calibrate();
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gcs_send_text_P(SEVERITY_LOW, PSTR("barometer calibration complete"));
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}
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static void init_sonar(void)
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{
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#if CONFIG_HAL_BOARD == HAL_BOARD_APM1
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sonar.Init(&adc);
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sonar2.Init(&adc);
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#else
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sonar.Init(NULL);
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sonar2.Init(NULL);
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#endif
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}
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// read_battery - reads battery voltage and current and invokes failsafe
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// should be called at 10hz
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static void read_battery(void)
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{
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battery.read();
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}
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// read the receiver RSSI as an 8 bit number for MAVLink
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// RC_CHANNELS_SCALED message
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void read_receiver_rssi(void)
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{
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rssi_analog_source->set_pin(g.rssi_pin);
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float ret = rssi_analog_source->voltage_average() * 50;
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receiver_rssi = constrain_int16(ret, 0, 255);
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}
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// read the sonars
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static void read_sonars(void)
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{
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if (!sonar.enabled()) {
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// this makes it possible to disable sonar at runtime
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return;
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}
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if (sonar2.enabled()) {
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// we have two sonars
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obstacle.sonar1_distance_cm = sonar.distance_cm();
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obstacle.sonar2_distance_cm = sonar2.distance_cm();
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if (obstacle.sonar1_distance_cm <= (uint16_t)g.sonar_trigger_cm &&
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obstacle.sonar2_distance_cm <= (uint16_t)obstacle.sonar2_distance_cm) {
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// we have an object on the left
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if (obstacle.detected_count < 127) {
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obstacle.detected_count++;
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}
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if (obstacle.detected_count == g.sonar_debounce) {
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gcs_send_text_fmt(PSTR("Sonar1 obstacle %u cm"),
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(unsigned)obstacle.sonar1_distance_cm);
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}
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obstacle.detected_time_ms = hal.scheduler->millis();
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obstacle.turn_angle = g.sonar_turn_angle;
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} else if (obstacle.sonar2_distance_cm <= (uint16_t)g.sonar_trigger_cm) {
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// we have an object on the right
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if (obstacle.detected_count < 127) {
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obstacle.detected_count++;
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}
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if (obstacle.detected_count == g.sonar_debounce) {
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gcs_send_text_fmt(PSTR("Sonar2 obstacle %u cm"),
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(unsigned)obstacle.sonar2_distance_cm);
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}
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obstacle.detected_time_ms = hal.scheduler->millis();
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obstacle.turn_angle = -g.sonar_turn_angle;
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}
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} else {
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// we have a single sonar
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obstacle.sonar1_distance_cm = sonar.distance_cm();
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obstacle.sonar2_distance_cm = 0;
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if (obstacle.sonar1_distance_cm <= (uint16_t)g.sonar_trigger_cm) {
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// obstacle detected in front
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if (obstacle.detected_count < 127) {
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obstacle.detected_count++;
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}
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if (obstacle.detected_count == g.sonar_debounce) {
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gcs_send_text_fmt(PSTR("Sonar obstacle %u cm"),
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(unsigned)obstacle.sonar1_distance_cm);
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}
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obstacle.detected_time_ms = hal.scheduler->millis();
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obstacle.turn_angle = g.sonar_turn_angle;
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}
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}
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Log_Write_Sonar();
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// no object detected - reset after the turn time
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if (obstacle.detected_count >= g.sonar_debounce &&
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hal.scheduler->millis() > obstacle.detected_time_ms + g.sonar_turn_time*1000) {
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gcs_send_text_fmt(PSTR("Obstacle passed"));
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obstacle.detected_count = 0;
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obstacle.turn_angle = 0;
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}
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}
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