alexey.zholtikov/zh_pcf8574
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feat: added interrupt for high level

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Alexey Zholtikov
2025-06-07 08:35:52 +03:00
parent ce831b324a
commit d665a6ead5
1 changed files with 2 additions and 2 deletions
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README.md
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@ -15,7 +15,7 @@
1. Enable interrupt support only if input GPIO's are used. 1. Enable interrupt support only if input GPIO's are used.
2. All the INT GPIO's on the extenders must be connected to the one GPIO on ESP. 2. All the INT GPIO's on the extenders must be connected to the one GPIO on ESP.
3. The input GPIO's are always pullup to the power supply. They must be connected to ground to trigger an interrupt. 3. The input GPIO's are always pullup to the power supply.
## Dependencies ## Dependencies
@ -133,6 +133,6 @@ void app_main(void)
void zh_pcf8574_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data) // Required only if used input GPIO interrupts. void zh_pcf8574_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data) // Required only if used input GPIO interrupts.
{ {
zh_pcf8574_event_on_isr_t *event = event_data; zh_pcf8574_event_on_isr_t *event = event_data;
printf("Interrupt happened on device address 0x%02X on GPIO number %d.\n", event->i2c_address, event->gpio_number); printf("Interrupt happened on device address 0x%02X on GPIO number %d at level %d.\n", event->i2c_address, event->gpio_number, event->gpio_level);
} }
``` ```