<![CDATA[Timer Camera X with RTC]]>I'm trying to use Timer Camera X with RTC wakeup.
By enabling RTC by TimerCAM.begin(true), it resuls in camera initialization error. This problem is also reported on GitHub's issue.
By reading library source codes, this seems to be caused by I2C driver, where camera uses I2C as SCCB, while RTC also uses I2C.

Any advises?

]]>https://community.m5stack.com/topic/6103/timer-camera-x-with-rtcRSS for NodeWed, 29 Apr 2026 01:16:25 GMTSun, 18 Feb 2024 09:34:55 GMT60<![CDATA[Reply to Timer Camera X with RTC on Mon, 19 Feb 2024 08:22:25 GMT]]>Hello guys

please see my comment here for a possible explanation and solution.

Thanks
Felix

]]>https://community.m5stack.com/post/23913https://community.m5stack.com/post/23913Mon, 19 Feb 2024 08:22:25 GMT<![CDATA[Reply to Timer Camera X with RTC on Mon, 19 Feb 2024 04:42:19 GMT]]>On TimerCameraX, RTC and camera are connected to ESP32 using different I2C buses, this means ESP32 uses two different I2C master for RTC and camera.

]]>https://community.m5stack.com/post/23904https://community.m5stack.com/post/23904Mon, 19 Feb 2024 04:42:19 GMT<![CDATA[Reply to Timer Camera X with RTC on Sun, 18 Feb 2024 18:12:40 GMT]]>I2C is a one-master, multiple-slave approach. That is, one master device can connect to multiple slave devices and select and read through different device addresses. Please refer to the i2c protocol for details.
https://learn.adafruit.com/scanning-i2c-addresses/arduino

https://github.com/m5stack/TimerCam-arduino/tree/master/examples/wakeup

]]>https://community.m5stack.com/post/23888https://community.m5stack.com/post/23888Sun, 18 Feb 2024 18:12:40 GMT