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Hi,
I would like to power the MDBT42Q through a battery which is connected to a charger. I tried to connect the charger pins (5V & GND) to to pins of the MDBT42Q (GND, V+), which are used if I would connect to battery directly. Unfortunately the board does not react. Is it possible to power the board over the recharger?When I connect it to the Bat and GND pin, it seems to work. Is this the right connection? And where does the other pin stands for?
Here are some illustrations of the connections:
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Can I simply solder a JST PHR-2 connector to a V+ and GND pin, then connect a LiPo battery (Lithium ion Polymer battery with 3.7V) to the MDBT42Q breakout board for powering from the battery?
And for recharging the battery, simply solder a micro USB breakout board like this to other V+ and GND pins of the MDBT42Q Breakout board (VBUS -> V+, GND -> GND) and then charge it by plugging in a micro usb cable? Or is there an additional board needed for recharging like this which is soldered the same way is described?
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Hello, I am looking for the smallest device for Espruino. I think that this would be the MDBT42Q Breakout board, right? What is the best way to power the breakout board? It should be as small as possible. Would you recommend a rechargeable battery and how would you connect it? What battery for powering do you recommend?
My goal is an espruino device which is as small as possible and has a quite large battery life time. I know that a large battery lifetime would result in a larger device, so it would also be okay if the battery is quite small, but then it should be rechargeable.
Thanks for your input in advance. If you know other really small devices which support espruino, I would appreciate if you would mention them.
Do you think that I could solder it also directly to the NRF51822 BLE module instead of the MDBT42Q?
Here is the schematic: https://learn.adafruit.com/assets/17043
Here is the datasheet: https://cdn-shop.adafruit.com/datasheetsÂ/MCP73831.pdf
The voltage range would be lower (Wide supply voltage range (1.8V to 3.6V)). Does such a charger have a voltage regulator?