display-ambient-light/board
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board/main/ambient_light.c

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feat: 环境光与接近传感器接入。
2023-02-05 23:09:08 +08:00
#include <stdio.h>
#include <stdlib.h>
#include "driver/i2c.h"
#include "embedded_display.c"
#include "esp_log.h"
feat: 启动时检测在线的 I2C 设备，避免不在线时崩溃。
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#include "i2c.c"
feat: 环境光与接近传感器接入。
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#define APDS_9930_CMD_REPEATED 0x80 // 命令重复地址
#define APDS_9930_CMD_AUTO_INCREMENT 0x90 // 命令自动递增地址
// ----------------------------------- 描述 默认值
#define APDS_9930_REG_ENABLE 0x00 // 状态和中断的启用 0x00
#define APDS_9930_REG_ATIME 0x01 // ALS ADC 时间 0xff
#define APDS_9930_REG_PTIME 0x02 // Proximity ADC 时间 0xff
#define APDS_9930_REG_WTIME 0x03 // Wait 时间 0xff
#define APDS_9930_REG_PPULSE 0x0e // Proximity 脉冲计数 0x00
style: 代码样式调整。
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#define APDS_9930_REG_CONTROL 0x0f // 增益控制 0x00
feat: 环境光与接近传感器接入。
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#define APDS_9930_REG_Ch0DATAL 0x14 // Ch0 ADC Low data 0x00
#define APDS_9930_REG_Ch0DATAH 0x15 // Ch0 ADC High data 0x00
#define APDS_9930_REG_Ch1DATAL 0x16 // Ch1 ADC Low data 0x00
#define APDS_9930_REG_Ch1DATAH 0x17 // Ch1 ADC High data 0x00
#define APDS_9930_REG_PDATAL 0x18 // Proximity ADC Low data 0x00
#define APDS_9930_REG_PDATAH 0x19 // Proximity ADC High data 0x00
#define APDS_9930_REG_OFFSET 0x1e // Proximity 偏移 --
#define APDS_9930_ATIME_VALUE 0xff // 2.7 ms – minimum ALS integration time
#define APDS_9930_WTIME_VALUE 0xff // 2.7 ms – minimum Wait time
#define APDS_9930_PTIME_VALUE 0xff // 2.7 ms – minimum Prox integration time
#define APDS_9930_PPULSE_VALUE 0x08 // Minimum prox pulse count
#define APDS_9930_CONTROL_VALUE \
0b00101010 // LED 100mA, Proximity Diode Ch1,
// Proximity 4X, ALS 16 X
#define APDS_9930_ENABLE_VALUE 0b01000111
#define APDS_9930_OFFSET_VALUE 0x8f
#define AMBIENT_LIGHT_TAG "ambient-light"
esp_err_t apds_9930_write(uint8_t command, uint8_t data) {
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
ACK_CHECK_EN);
i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
i2c_master_write_byte(cmd, data, ACK_CHECK_EN);
i2c_master_stop(cmd);
esp_err_t error =
i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
if (error != ESP_OK) {
ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
}
return error;
}
esp_err_t apds_9930_write_word(uint8_t command, uint8_t data_l,
uint8_t data_h) {
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
ACK_CHECK_EN);
i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
i2c_master_write_byte(cmd, data_l, ACK_CHECK_EN);
i2c_master_write_byte(cmd, data_h, ACK_CHECK_EN);
i2c_master_stop(cmd);
esp_err_t error =
i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
if (error != ESP_OK) {
ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
}
return error;
}
esp_err_t apds_9930_read(uint8_t command, uint8_t* data) {
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
ACK_CHECK_EN);
i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
i2c_master_start(cmd);
i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_READ,
ACK_CHECK_EN);
i2c_master_read_byte(cmd, data, NACK_VAL);
i2c_master_stop(cmd);
esp_err_t error =
i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
if (error != ESP_OK) {
ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
}
return error;
}
esp_err_t apds_9930_read_word(uint8_t command, uint8_t* data_l,
uint8_t* data_h) {
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
ACK_CHECK_EN);
i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
i2c_master_start(cmd);
i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_READ,
ACK_CHECK_EN);
i2c_master_read_byte(cmd, data_l, ACK_VAL);
i2c_master_read_byte(cmd, data_h, NACK_VAL);
i2c_master_stop(cmd);
esp_err_t error =
i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
if (error != ESP_OK) {
ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
}
return error;
}
void ambient_light_fetch(void* arg) {
feat: 支持语音模块。
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ESP_LOGI(AMBIENT_LIGHT_TAG, "ambient_light_fetch");
feat: 环境光与接近传感器接入。
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esp_err_t error;
uint16_t als_ch0_raw;
uint16_t als_ch1_raw;
uint16_t proximity_raw;
feat: 更新到 ESP-IDF v5.0.1.
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char als_ch0_str[20];
char als_ch1_str[20];
char proximity_str[20];
feat: 环境光与接近传感器接入。
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uint8_t als_ch0_buffer[] = {0, 0};
uint8_t als_ch1_buffer[] = {0, 0};
uint8_t proximity_buffer[] = {0, 0};
uint8_t enable_value;
display_fill_rect(0, 2, 128, 8, 0x00);
for (;;) {
// Proximity
error =
apds_9930_read_word(APDS_9930_CMD_AUTO_INCREMENT | APDS_9930_REG_PDATAL,
&(proximity_buffer[1]), &(proximity_buffer[0]));
if (error != ESP_OK) {
ESP_LOGW(AMBIENT_LIGHT_TAG, "read failed. %x", error);
} else {
proximity_raw = proximity_buffer[0] << 8 | proximity_buffer[1];
sprintf(proximity_str, "Prox: % 4d ", proximity_raw);
display_print8_str(8, 2, proximity_str);
ESP_LOGD(AMBIENT_LIGHT_TAG, "Prox: %d %x, %x %x", proximity_raw,
proximity_raw, proximity_buffer[0], proximity_buffer[1]);
}
// als ch0
error = apds_9930_read_word(
APDS_9930_CMD_AUTO_INCREMENT | APDS_9930_REG_Ch0DATAL,
&(als_ch0_buffer[1]), &(als_ch0_buffer[0]));
if (error != ESP_OK) {
ESP_LOGW(AMBIENT_LIGHT_TAG, "read failed. %x", error);
} else {
als_ch0_raw = als_ch0_buffer[0] << 8 | als_ch0_buffer[1];
sprintf(als_ch0_str, "Ch0: % 5d ", als_ch0_raw);
display_print8_str(8, 4, als_ch0_str);
ESP_LOGD(AMBIENT_LIGHT_TAG, "ALS Ch0: %d, %x", als_ch0_raw,
als_ch0_raw);
}
// als ch1
feat: 完善显示器、氛围灯亮度调整。#2.
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// error = apds_9930_read_word(
// APDS_9930_CMD_AUTO_INCREMENT | APDS_9930_REG_Ch1DATAL,
// &(als_ch1_buffer[1]), &(als_ch1_buffer[0]));
// if (error != ESP_OK) {
// ESP_LOGW(AMBIENT_LIGHT_TAG, "read failed. %x", error);
// } else {
// als_ch1_raw = als_ch1_buffer[0] << 8 | als_ch1_buffer[1];
// sprintf(als_ch1_str, "Ch1: % 5d ", als_ch1_raw);
// display_print8_str(8, 6, als_ch1_str);
// ESP_LOGD(AMBIENT_LIGHT_TAG, "ALS Ch1: %d, %x", als_ch1_raw,
// als_ch1_raw);
// }
vTaskDelay(pdMS_TO_TICKS(1000));
feat: 环境光与接近传感器接入。
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}
display_fill_rect(0, 2, 128, 8, 0x00);
}
void ambient_light_auto_fetch() {
feat: 启动时检测在线的 I2C 设备，避免不在线时崩溃。
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if (is_apds_9930_online == 0) {
return;
}
feat: 支持语音模块。
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xTaskCreate(ambient_light_fetch, "ambient-light", 2048, NULL, 10, NULL);
feat: 环境光与接近传感器接入。
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}
void ambient_light_init() {
fix: 温度传感器扫描不到。
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if (is_apds_9930_online == 0) {
feat: 将环境光、距离传感器从 9930 升级到 APDS9960. #4.
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ESP_LOGI(AMBIENT_LIGHT_TAG, "APDS 9930 is offline");
feat: 启动时检测在线的 I2C 设备，避免不在线时崩溃。
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return;
}
feat: 支持语音模块。
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ESP_LOGI(AMBIENT_LIGHT_TAG, "Initializing APDS-9930");
// esp_log_level_set(AMBIENT_LIGHT_TAG, ESP_LOG_ERROR);
feat: 环境光与接近传感器接入。
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ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_ATIME,
APDS_9930_ATIME_VALUE));
ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_PTIME,
APDS_9930_PTIME_VALUE));
ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_PPULSE,
APDS_9930_PPULSE_VALUE));
ESP_ERROR_CHECK(apds_9930_write(
APDS_9930_CMD_REPEATED | APDS_9930_REG_CONTROL, APDS_9930_CONTROL_VALUE));
ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_OFFSET,
APDS_9930_OFFSET_VALUE));
ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_ENABLE,
APDS_9930_ENABLE_VALUE));
}
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