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with a DC supply, i get 3.3V correctly at all points, but 8V on 5V
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I've never thought of that, but it turns out that it was an AC supply i had plugged into it the whole time
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yes, and up to 6.7V when the MDBT52Q is disconnected, even though I'm supplying less power than the supply is rated for.
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Before I soldered headers on to it, I wrapped wires through the holes in the PCB, and was able to somewhat use it with the same power adapter.
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i measure 2.4V with 3.3V, and 6.3V with 5V between the GND and Vin pins on the MDBT42Q
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I'm measuring 2.4V between GND and 3.3V when i put my power adapter on 3.3V, and 2.7V when i put it on 5V, and I'm measuring 2.5V between GND and V of the power adapter when the MDBT42Q is disconnected, and 6.7V when it's on 5V with the MDBT42Q disconnected. I have a 9V 1.2A power supply connected to the power adapter.
The lights are also off when powering it up with the button held down. -
I connected it to 5V after I wasn't getting much success with getting the MDBT42Q to connect over bluetooth or Serial, and i made sure to only use the VIN Pins to connect power, and made sure to not leave and cables flailing around
I've been working on a Custom Wearable display called Project GLASSES, currently with an ESP32 devkit for testing, but my plan is to use an mdbt42Q in the end, and make an app system like for BangleJs for it and integrate it with the BangleJs as an input device for it. I'm posting project logs for it on the hackaday.io page