Gechologic Support Forum

STM32F4 Development ("Classic" Gecho v1) => Hardware - Extensions and hacks => Topic started by: 843 on August 28, 2018, 11:48:25 AM

Title: Spring loaded contacts?
Post by: 843 on August 28, 2018, 11:48:25 AM

I'm looking for suggestions to facilitate easy board removal and programming.  My thought was to acquire some pogo pins and either mount them to a back plate or the board itself.

Thoughts?

Title: Re: Spring loaded contacts?
Post by: mario on August 28, 2018, 04:42:37 PM

Your unit has charging circuit and 18650 cell right? So it won't be in the way if you drilled holes for 4 SWD pins matching where they are on the board. I'd leave them on a back plate, then you are not risking snapping pads off the board when the pressure is applied sideways.

For programming of "Adept" DIY kits - as they lack CH340G USB controller, I use this adapter (http://gechologic.com/upload/hardware/SWD_adapter_with_pogo_pins.jpg) - maybe you can make something similar but short/flat enough to fit under the sliding door.

Title: Re: Spring loaded contacts?
Post by: 843 on August 28, 2018, 08:28:04 PM

18650, correct.   I was trying to keep the sides free to not get in the way of wires and any potential additions that are accessible from outside the box.  I certainly can and will likely move it into a corner as soon as it starts getting in my way.

Lack of ch340g...Incorrect?
I certainly soldered one on there.

Short and flat enough shouldn't be a problem.

Title: Re: Spring loaded contacts?
Post by: mario on August 29, 2018, 07:30:25 PM

For 18650 you may need to carve the plate a bit, to give it extra 1mm of space, or the sliding door might not close. The ch340g - good you added it now - I meant to say as it isn't there in the beginning, the board can't be flashed normal way, only with the cumbersome SWD pogo adapter :)

Title: Re: Spring loaded contacts?
Post by: 843 on August 30, 2018, 05:52:47 AM

I can confirm needing to carve into the dividing plate with the 18650.  It didn't take much and the carved area also, conveniently, serves to keep the battery in place.