Arduino_Apollo3
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sparkfun
Arduino core to support the Apollo3 microcontroller from Ambiq Micro
When looking at Sparkfun's documentation on the Artemis for information about the max source/sink current of the Artemis, I noticed that some of the Pads support a connection to a...
The Qwiic Button uses sub-one cycle clock stretching on the I2C bus. This causes the standard ```beginTransmission``` ```endTransmission``` 'scanner' test for an I2C device to return a false positive. **Steps...
Sorry Kyle... With v2.1.1 of the core, ```attachInterrupt``` re-configures the pin, removing a pull-up if one was present. If you're using a FALLING interrupt, then removing the pull-up causes the...
OpenLog Artemis puts the Aretmis into deep sleep between measurements to save battery power. With v1.2 of the core, we could disable the I2C IOM to save a little extra...
Another observation... With v2.1 of the core, we need to manually re-enable the Serial TX and RX pins after disabling them to reduce power consumption during SLEEP_DEEP. With v1.2 of...
### Background I’m upgrading the OpenLog Artemis to v2.1 of the core. I need to be able to manually configure the pull-ups on the “qwiic” SCL and SDA pins (D8...
When working with CMSIS functions (for my part, I am especially interested in the FFTs), one often needs stuff from arm_const_structs.h (for example, for FFTs, this contains pre computed twiddle...
After discussion on the CMSIS repo, it seems that there may be some outdated version of the CMSIS DSP being shipped; see https://github.com/ARM-software/CMSIS_5/issues/1189 . Any way to update that? There...
From https://learn.sparkfun.com/tutorials/designing-with-the-sparkfun-artemis : " Pin Drive Strength One of the more unique features of the Artemis is its ability to have selectable drive strength on all GPIO. 2, 4, 8,...
Based on a forum post (https://forum.sparkfun.com/viewtopic.php?f=153&t=55548), I have put a lot of time in making the HB01B0 camera to work on version 2.0.6. There are a number of issues to...
