RV3028 on a Motor 2040

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1

I am new to Pico and the Motor 2040. I would like tobe able to get the RTC to run on the Motor 2040. I have done a bit of googling on the subject but no luck. Is it even possible to get time onto the Motor 2040. I have two motors doing what I want be no luck with the RV3028. Any pointers appricated

2

Your adding the RTC to the Pico, not the motor shim. Think of it that way and it may be easier to sort out. I have one wired up to a Pico Lipo via i2c.
You’ll need to setup i2c.
I used pins 4 and 5 as those are the pins used by the Qw/ST connector on my Pico Lipo.

from pimoroni_i2c import PimoroniI2C
i2c = PimoroniI2C(sda=(4), scl=(5))

Then you need to setup the RV3028.

import time
from breakout_rtc import BreakoutRTC

I also added the following code from one of the examples, and so far mine works and keeps accurate time. I’m not 100% sure its needed though?

rtc.set_backup_switchover_mode(1)
rtc.set_24_hour()
rtc.update_time()
rtc.enable_periodic_update_interrupt(True)

The above code is all in the section above the while true loop.
Raspberry Pi Pico GPIO Pinout

3

If you don’t want to do any soldering etc. You’ll need one of these,
STEMMA QT / Qwiic to Breakout Garden Adapter - Pimoroni
And a JST-SH to JST-SH cable.
JST-SH cable - Qwiic / STEMMA QT compatible - Pimoroni

4

Hi, this is me again and I got the RTC working (crudely but working).

Thanks for the help.

1 Like
5

Nice to hear you got it working. =)

The set time example should set it based on the time on the host PC. It’s a quick and easy way to set the date and time to your time zone. Assuming the host PC is setup that way that is.
pimoroni-pico/micropython/examples/breakout_rtc at main · pimoroni/pimoroni-pico · GitHub

I ran it on my Pi 400 in Thonny and it was easy peasy.