I have PyGamer driving a couple of 3.5v relays. They work correctly in that they switch on and off when the USB cable is not connecting the PyGamer to my PC. When I connect the USB cable, the LEDs on the relay module continue to flash, but the relays do not operate.
Any suggestions to resolve this problem?
I should add, I have a Lithium Ion Polymer Battery - 3.7V 350mAh attached at the same time as the USB cable
PyGamer power question
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- dastels
- Posts: 15667
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Re: PyGamer power question
How are the relays wired? And what are the relays? Pictures of components and connections generally help.
Dave
Dave
- Claude_J_Greengrass
- Posts: 79
- Joined: Sat Jul 24, 2021 10:53 am
Re: PyGamer power question
Hi Dave,
The relay in question can be found here: https://www.amazon.com/gp/product/B07QG ... UTF8&psc=1
The relay in question can be found here: https://www.amazon.com/gp/product/B07QG ... UTF8&psc=1
- dastels
- Posts: 15667
- Joined: Tue Oct 20, 2015 3:22 pm
Re: PyGamer power question
That's what they are. What about the rest of my questions?
Dave
Dave
- Claude_J_Greengrass
- Posts: 79
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Re: PyGamer power question
Here is the wiring. I used Adafruit QT cables
- dastels
- Posts: 15667
- Joined: Tue Oct 20, 2015 3:22 pm
Re: PyGamer power question
Those are just 3-pin JST connectors, not STEMMA, and certainly not QT.
Are you sure that the Vcc on those JST connections is 3.3v and not 5v which I believe is the default. See https://learn.adafruit.com/adafruit-pyg ... ep-3028887.
Dave
Are you sure that the Vcc on those JST connections is 3.3v and not 5v which I believe is the default. See https://learn.adafruit.com/adafruit-pyg ... ep-3028887.
Dave
- Claude_J_Greengrass
- Posts: 79
- Joined: Sat Jul 24, 2021 10:53 am
Re: PyGamer power question
Wow! I completely missed that. It makes life much easier. I can use SSRs for switching.
May thanks for making me re-read the specification.
May thanks for making me re-read the specification.
Please be positive and constructive with your questions and comments.