client: Exponential backoff resend intervals

[tattlekey] / client / blink.c

#include "pico/cyw43_arch.h"
#include "pico/stdlib.h"

#include "blink.h"

void one_blink(int duration) {
  cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
  sleep_ms(duration);
  cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
  sleep_ms(duration);
}

void signal(int count, int duration) {
  for (int i = 0; i < count; i++)
    one_blink(duration);
  sleep_ms(1000);
}

void blink_forever(int duration) {
  while (true) {
    one_blink(duration);
  }
}

void signal_error_by_blinking() { blink_forever(100); }
void signal_success_by_blinking() { blink_forever(400); }