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fix(dht11_cbm): add dummy read on init to prevent first-read failure

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Kevin Thomas
2026-04-06 17:26:05 -04:00
parent 066c69f24b
commit 8f20fcde28
1 changed files with 5 additions and 0 deletions
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drivers/0x09_dht11_cbm/Src/main.c
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@@ -88,10 +88,15 @@ static void _print_failure(void)
*/ */
static void _dht11_setup(void) static void _dht11_setup(void)
{ {
uint8_t dummy_h;
uint8_t dummy_t;
xosc_set_clk_ref(); xosc_set_clk_ref();
dht11_timer_release_reset(); dht11_timer_release_reset();
dht11_timer_start_tick(); dht11_timer_start_tick();
dht11_init(); dht11_init();
delay_ms(DHT11_POLL_MS);
dht11_read(&dummy_h, &dummy_t);
delay_ms(DHT11_POLL_MS);
uart_puts("DHT11 driver initialized on GPIO4\r\n"); uart_puts("DHT11 driver initialized on GPIO4\r\n");
} }