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esp32_rgb_rotary_encoder
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Fix: pulse count now correctly interrupts on one turn

main
rkcf 2023-02-08 14:25:31 -06:00
parent 531cb9b0a9
commit 3d9281a537
1 changed files with 8 additions and 11 deletions
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19
main/esp32_rgb_rotary_encoder.c
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@ -11,12 +11,13 @@
#include "hal/pcnt_types.h" #include "hal/pcnt_types.h"
/* Pinouts */ /* Pinouts */
#define PCNT_A_PIN 5 /* Rotary Encoder A Pin */ #define PCNT_A_PIN 4 /* Rotary Encoder A Pin */
#define PCNT_B_PIN 4 /* Rotary Encoder B Pin */ #define PCNT_B_PIN 5 /* Rotary Encoder B Pin */
#define GPIO_BTN_PIN 6 /* Rotary Encoder switch */
/* Pulse Count Settings */ /* Pulse Count Settings */
#define PCNT_HIGH_LIMIT 100 /* 100 total steps */ #define PCNT_HIGH_LIMIT 2 /* 100 total steps */
#define PCNT_LOW_LIMIT -100 #define PCNT_LOW_LIMIT -2
static QueueHandle_t pcnt_queue = NULL; static QueueHandle_t pcnt_queue = NULL;
@ -24,6 +25,7 @@ static const char *TAG = "RE Demo"; /* logging tag */
pcnt_unit_handle_t pcnt_unit; pcnt_unit_handle_t pcnt_unit;
/* Pulse Counter Callback */ /* Pulse Counter Callback */
static bool pcnt_cb(pcnt_unit_handle_t unit, const pcnt_watch_event_data_t *edata, void *user_ctx) { static bool pcnt_cb(pcnt_unit_handle_t unit, const pcnt_watch_event_data_t *edata, void *user_ctx) {
BaseType_t high_task_wakeup; BaseType_t high_task_wakeup;
@ -72,7 +74,7 @@ static void pcnt_init() {
/* Install watch points */ /* Install watch points */
ESP_LOGI(TAG, "Installing watch points and callback handler"); ESP_LOGI(TAG, "Installing watch points and callback handler");
int watch_points[] = {-10, 10}; int watch_points[] = {-2, 2}; /* This encoder has detents which change in steps of 2 */
for (size_t i = 0; i < sizeof(watch_points) / sizeof(watch_points[0]); i++) { for (size_t i = 0; i < sizeof(watch_points) / sizeof(watch_points[0]); i++) {
ESP_ERROR_CHECK(pcnt_unit_add_watch_point(pcnt_unit, watch_points[i])); ESP_ERROR_CHECK(pcnt_unit_add_watch_point(pcnt_unit, watch_points[i]));
} }
@ -93,7 +95,6 @@ static void pcnt_init() {
ESP_ERROR_CHECK(pcnt_unit_start(pcnt_unit)); ESP_ERROR_CHECK(pcnt_unit_start(pcnt_unit));
} }
/* Main Loop */ /* Main Loop */
void app_main(void){ void app_main(void){
@ -101,15 +102,11 @@ void app_main(void){
pcnt_init(); pcnt_init();
/* Log counter value */ /* Log counter value */
int pulse_count = 0;
int event_count = 0; int event_count = 0;
while (1) { while (1) {
if (xQueueReceive(pcnt_queue, &event_count, pdMS_TO_TICKS(1000))) { if (xQueueReceive(pcnt_queue, &event_count, portMAX_DELAY)) {
ESP_LOGI(TAG, "Watch point event, count: %d", event_count); ESP_LOGI(TAG, "Watch point event, count: %d", event_count);
} else {
ESP_ERROR_CHECK(pcnt_unit_get_count(pcnt_unit, &pulse_count));
ESP_LOGI(TAG, "Pulse count: %d", pulse_count);
} }
} }
} }