Hi,
I use my pretty pyboard with her housing and lcd160. The result is clean. I can connect properly serverals sensors on Y part without ugly wire. It's perfect. Beautiful and convenient.
But, I need to use vbat for saving time, and I have found a big problem for connect a coin cell properly.
I have tried to solder 2 connections under the board for connect a coin cell althoug the result will produce 2 ugly wires... and a "flying coin cell" like a flying sheet... But I did not succeed. The solder does not take on this points!
If somebody has a solution for a clean connection between a coin cell and the pyboard with a housing, or an other way for save time?
Thanks.
vbat connection solution ?
- pythoncoder
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Re: vbat connection solution ?
Why not run the LCD160CR on the X side? This exposes the socket contacts for the battery so it can plug in normally.
Peter Hinch
Index to my micropython libraries.
Index to my micropython libraries.
Re: vbat connection solution ?
Hi Pyth,
I use the pyboard with her housing... So, X or Y position produce same result.
I can pass 2 littles wires by bottom of housing. But result isn't convenient... with a "flying" coin cell.
I will try to solder directly a coin cell "breakout" under the board, ... space could accept a coin cell...
I will post the result...
I use the pyboard with her housing... So, X or Y position produce same result.
I can pass 2 littles wires by bottom of housing. But result isn't convenient... with a "flying" coin cell.
I will try to solder directly a coin cell "breakout" under the board, ... space could accept a coin cell...
I will post the result...
Re: vbat connection solution ?
Hi,
I have done it. Nothing outside the housing! Just on top, the lcd160 and one of my different "half protoskin"... Perfect.
I have done it. Nothing outside the housing! Just on top, the lcd160 and one of my different "half protoskin"... Perfect.
Re: vbat connection solution ?
Hi,
Big problem!
The coin cell is out in less than 24 hours...
Is it the vback pinout that I have to use?
Otherwise, no way for save time!
Thanks.
Big problem!
The coin cell is out in less than 24 hours...
Is it the vback pinout that I have to use?
Otherwise, no way for save time!
Thanks.
Re: vbat connection solution ?
The VBACK pin has to be used for RTC backup.
- pythoncoder
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- Joined: Fri Jul 18, 2014 8:01 am
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- Contact:
Re: vbat connection solution ?
Yes. On Pyboard 1.1 VBAT powers the entire Pyboard and is intended for lithium batteries. See this diagram.
Peter Hinch
Index to my micropython libraries.
Index to my micropython libraries.
Re: vbat connection solution ?
Ok, thanks.
I have found a solution there : https://elfnor.com/pyboard-datalogger.html
So, coincell-gnd on the pin upper X24, and coincell-V+ on the pin upper X22.
I have tested, and for moment it's all right.
Enjoy.
I have found a solution there : https://elfnor.com/pyboard-datalogger.html
So, coincell-gnd on the pin upper X24, and coincell-V+ on the pin upper X22.
I have tested, and for moment it's all right.
Enjoy.