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Xinyuan-LilyGO / T-Wristband

DIY Programmable Bracelet
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IMU_INT_PIN 38 or 39? #6

Closed qgar12 closed 4 years ago

qgar12 commented 4 years ago

according to shematics IMU_INT_PIN =39 according to code & markdown IMU_INT_PIN =38

whats the right value?

Thx

TioRuben commented 4 years ago

In the case of the unit I've is PIN 39

TioRuben commented 4 years ago

FYI I've successfully set up wake on motion feature by sending this to MPU

  IMU.writeBit(MPU9250_ADDRESS, PWR_MGMT_1, 5, false);
  IMU.writeBit(MPU9250_ADDRESS, PWR_MGMT_1, 6, false);
  IMU.writeBit(MPU9250_ADDRESS, PWR_MGMT_1, 4, false);
  IMU.writeByte(MPU9250_ADDRESS, PWR_MGMT_2, 0x07);
  IMU.writeByte(MPU9250_ADDRESS, ACCEL_CONFIG2, 0x09);
  IMU.writeByte(MPU9250_ADDRESS, INT_ENABLE, 0x40);
  IMU.writeBit(MPU9250_ADDRESS, MOT_DETECT_CTRL, 7, true);
  IMU.writeBit(MPU9250_ADDRESS, MOT_DETECT_CTRL, 6, true);
  IMU.writeByte(MPU9250_ADDRESS, WOM_THR, 170);
  IMU.writeBit(MPU9250_ADDRESS, INT_PIN_CFG, 5, 0);
  IMU.writeByte(MPU9250_ADDRESS, INT_STATUS, 0);
  IMU.writeByte(MPU9250_ADDRESS, LP_ACCEL_ODR, 0x03);
  IMU.writeBit(MPU9250_ADDRESS, PWR_MGMT_1, 5, true);

Invensense Datasheet Pages 30 and 31 "6.1 Wake-on-Motion Interrupt"

And, setting up the EXT1 Wakeup

  pinMode(39, GPIO_MODE_INPUT);
  esp_sleep_enable_ext1_wakeup(GPIO_SEL_39, ESP_EXT1_WAKEUP_ANY_HIGH);
  esp_deep_sleep_disable_rom_logging();
  esp_deep_sleep_start();

Now I can move the arm towards my face to see the hour without touching any button.

lewisxhe commented 4 years ago

If there are still problems, please reopen the issue