First Release

main/main.c

@@ -0,0 +1,88 @@
+/* MPR121 Example
+
+	 This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+	 Unless required by applicable law or agreed to in writing, this
+	 software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+	 CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_log.h"
+
+#include "mpr121.h"
+
+#define MPR121_ADDR 0x5A
+
+static const char *TAG = "MAIN";
+
+void app_main(void)
+{
+	ESP_LOGI(TAG, "CONFIG_SCL_GPIO=%d", CONFIG_SCL_GPIO);
+	ESP_LOGI(TAG, "CONFIG_SDA_GPIO=%d", CONFIG_SDA_GPIO);
+	ESP_LOGI(TAG, "CONFIG_IRQ_GPIO=%d", CONFIG_IRQ_GPIO);
+	MPR121_t dev;
+
+	uint16_t touchThreshold = 40;
+	uint16_t releaseThreshold = 20;
+	//uint16_t interruptPin = 4;
+
+	bool ret = MPR121_begin(&dev, MPR121_ADDR, touchThreshold, releaseThreshold, CONFIG_IRQ_GPIO, CONFIG_SDA_GPIO, CONFIG_SCL_GPIO);
+	ESP_LOGI(TAG, "MPR121_begin=%d", ret);
+	if (ret == false) {
+		switch (MPR121_getError(&dev)) {
+			case NO_ERROR:
+				ESP_LOGE(TAG, "no error");
+				break;
+			case ADDRESS_UNKNOWN:
+				ESP_LOGE(TAG, "incorrect address");
+				break;
+			case READBACK_FAIL:
+				ESP_LOGE(TAG, "readback failure");
+				break;
+			case OVERCURRENT_FLAG:
+				ESP_LOGE(TAG, "overcurrent on REXT pin");
+				break;
+			case OUT_OF_RANGE:
+				ESP_LOGE(TAG, "electrode out of range");
+				break;
+			case NOT_INITED:
+				ESP_LOGE(TAG, "not initialised");
+				break;
+			default:
+				ESP_LOGE(TAG, "unknown error");
+				break;
+		}
+		while(1) {
+			vTaskDelay(1);
+		}
+	}
+
+
+#if 0
+  MPR121_setTouchThresholdAll(&dev, 40);  // this is the touch threshold - setting it low makes it more like a proximity trigger, default value is 40 for touch
+  MPR121_setReleaseThresholdAll(&dev, 20);  // this is the release threshold - must ALWAYS be smaller than the touch threshold, default value is 20 for touch
+#endif
+
+
+	MPR121_setFFI(&dev, FFI_10); // AFE Configuration 1
+	MPR121_setSFI(&dev, SFI_10); // AFE Configuration 2
+	MPR121_setGlobalCDT(&dev, CDT_4US);  // reasonable for larger capacitances
+	MPR121_autoSetElectrodesDefault(&dev, true);	// autoset all electrode settings
+
+
+	while(1) {
+		MPR121_updateAll(&dev);
+		for (int i = 0; i < 12; i++) {
+			if (MPR121_isNewTouch(&dev, i)) {
+				ESP_LOGI(TAG, "electrode %d was just touched", i);
+			} else if (MPR121_isNewRelease(&dev, i)) {
+				ESP_LOGI(TAG, "electrode %d was just released", i);
+			}
+		}
+		vTaskDelay(10);
+	}
+}