Circuit Playground Bluefruit, does not turn on with battery

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Eswezey
 
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Circuit Playground Bluefruit, does not turn on with battery

Post by Eswezey »

Hello,
I have a Circuit Playground Bluefruit, and I am doing the project No-solder LED Disco Tie:
https://learn.adafruit.com/no-solder-ci ... -disco-tie

The project powers up just fine with USB cable, but plugging in a battery does nothing. I just got a new battery today, charged it and plugged it in.

Is there something I'm missing here? Thanks.

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dastels
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by dastels »

Please post a clear picture of the connector end of the battery cable. Where did you get the battery?

Dave

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Eswezey
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by Eswezey »

I'll have to send a picture later. Amazon.

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Eswezey
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by Eswezey »

The Amazon listing specifies the battery has a JST-PH2.0 connector.
https://www.amazon.com/dp/B07BTV5Q6F?ps ... ct_details

Bluefruit specs don't say what type of battery connector it is, but the suggested battery for the project says it is JST-PH.
https://www.adafruit.com/product/258

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dastels
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by dastels »

Again, please post a clear pic of the connector end of the battery cable.

Dave

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Eswezey
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by Eswezey »

Measured the battery voltage at 4.11 volts.

Picture straight-on the connector and board:
BF_bat1a.jpg
BF_bat1a.jpg (156.11 KiB) Viewed 472 times
Picture side-by-side:
BF_bat2a.jpg
BF_bat2a.jpg (232.17 KiB) Viewed 472 times
Picture of the board powered by USB:
BF_powereda.jpg
BF_powereda.jpg (220.86 KiB) Viewed 472 times

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dastels
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by dastels »

Thanks. That battery has the wrong polarity for Adafruit boards.

Dave

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Eswezey
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by Eswezey »

Dang, you're right. That probably means I can't flip the wires because then it won't charge.

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dastels
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by dastels »

As it seems the charger matches its polarity, you are correct. Fortunately it doesn't sound like the CPB was damaged in the process.

You could get something like https://www.adafruit.com/product/1131 and reverse the wiring in one end, for use with the charger. Just be sure to label it clearly!

Dave

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Eswezey
 
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Re: Circuit Playground Bluefruit, does not turn on with battery

Post by Eswezey »

Thanks very much for your help!

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