sudo apt-get install python-smbus i2c-tools
i would code the above and reboot the rpi then run detect again
depending on which way you go about things…
most common issue is reversed scl/sca lines …or data lines check these are correctly matching…
when building home brew units…
also this is the device you gave a link to…is setup page
Thanks for your response, I will try code the above shortly. This is the product link sorry I posted the original manufacturers product link in the OP, https://core-electronics.com.au/rtc-pi.html
With regards to the lines, I have not taken this into account really because I just put the hat ontop of the Pi 4 the same way shown in the product page:
Apologies if this wasn’t clear in the product documentation, but you’ll need to solder the stacking headers onto your RTC board in order to get good continuity.
Once you’ve done this, let us know whether if you’re still having the same problems
-James
The functionality you’re looking for would be pretty hard for a simple RTC to do, you’d need some kind of microcontroller looking at the RTC and bridging a pin on the Pi to turn it on. By the way, the Pi has no true low-power state, the shutdown is actually a reboot that stops very early on in the boot process, and waits for a pin to continue.
While I believe the wake-on-pin functionality varies based on the Pi model, I’ve gotten it to work on a zero and I’ll check which pin it was when I get home.
if your worried i`d solder one of these to the rtc module pushing the pins right through as far as they can and solder the appropriate terminals then it becomes a proper stack-able unit…just straight out soldering to the rpi is not a good idea…seems to me what if you required it for another purpose …
this part.
i see it comes with the header yes solder it to the board it should be fine after that…i did not see its accessories til now…sozz…