Shifter break out boards

These just popped up on ebay if anyone is interested

https://www.ebay.co.uk/itm/164352923368?hash=item26443296e8:g:bxEAAOSwn01fRTjD

Hi guys, you have all inspired me and I have been ‘selected’ to build this for inkberrow CC, I’ve purchased these boards but wondered if someone could check that I’m wiring them correctly - in particular the capacitor I’m thinking I can add this between 5 v and gnd? My understanding with the original layout was that it linked to g (enable) and onto ground?

Note I was originally linking g to ground but am now using jumper 1

Also any tips on soldering? I hadn’t expected these to be so small

ryansymoICC wrote:Hi guys, you have all inspired me and I have been ‘selected’ to build this for inkberrow CC, I’ve purchased these boards but wondered if someone could check that I’m wiring them correctly - in particular the capacitor I’m thinking I can add this between 5 v and gnd? My understanding with the original layout was that it linked to g (enable) and onto ground?

Note I was originally linking g to ground but am now using jumper 1

Also any tips on soldering? I hadn’t expected these to be so small

In regard to soldering tips, the equipment you use will make a huge difference to your experience and the quality of your joints:

- get a decent soldering iron.
- get some "helping hands".
- use good solder and flux.
- Also get a de-soldering pump.
- Get a good pair of wire strippers.
- If you're soldering after dark I'd suggest a good hobby light as well. Incandescent bulbs used for lighting houses are not good enough.
- size your wires to your holes, and use wires with outers that are heatproof. If you can buy wire in colours that matches the diagrams it's much easier to diagnose later.

By the time you've done all the boards you'll be a pro, but be wary of the early boards as the connections might not be so good while you're getting used to . I'd recommend buying several extra PCBs for spares and practising on a couple of those or getting some prototyping boards to practice on.

Thanks Dave, much appreciated we have a school  PE teacher in our team so we may have farmed this out to the DT department, sharing  as there is a high chance anyone reading this may also have a teacher in the ranks?!

Can anyone confirm the resistor is ok linked in as per my photo?

On this board the SRCLR only goes straight to VCC but I’ve then linked that on to 5v and separately onto gnd with a resistor ?

Ryansym wrote:Thanks Dave, much appreciated we have a school  PE teacher in our team so we may have farmed this out to the DT department, sharing  as there is a high chance anyone reading this may also have a teacher in the ranks?!

Can anyone confirm the resistor is ok linked in as per my photo?

On this board the SRCLR only goes straight to VCC but I’ve then linked that on to 5v and separately onto gnd with a resistor ?

I can't really see from your picture what's going on. The traces are a little unclear and labels are covered by the edge of the photo or the terminal blocks. Have you got better images of the board?

Ryansym wrote:Thanks Dave, much appreciated we have a school  PE teacher in our team so we may have farmed this out to the DT department, sharing  as there is a high chance anyone reading this may also have a teacher in the ranks?!

Can anyone confirm the resistor is ok linked in as per my photo?

On this board the SRCLR only goes straight to VCC but I’ve then linked that on to 5v and separately onto gnd with a resistor ?

Also, and just FYI really, I saw these boards on Ebay when I started my project (probably this thread because I've done mine in the last few months) and decided against using them. The reason was that it's a custom part and if in the future you need to replace them, they may no longer be available. At that point someone would need to re-engineer the most "difficult" part of the build. They're not cheap either, so how many do you buy to cover spares and repairs etc?

Hi and good luck with the build, I would also add if you use these boards I'd use IC sockets and solder those into the board, you can then swap out the main IC chip if it fails, I can't see for sure but it looks like you've just soldered the chip straight onto the board. I apologise if I'm wrong!!

https://www.ebay.co.uk/itm/122214029379?var=422500226634&itmmeta=01HW69F3P7JSHWPRN7SH1AH0Y6&hash=item1c74861843:g:cPMAAOSwXeJXfTyn&itmprp=enc%3AAQAJAAAA4G4wc5B4VhVvcc6ifRVTOAxO4D5%2FjLzgZhEKZtupiZMc%2F8tDZm%2BRQkeaid%2FmGoDhli7H3X6q2hi%2BXO4Otchys4n4LEkT4EAZidZEFT13qSQkTDPzg5KrbrSwcTBpdB7lVRxSzsxXsT2EtJYrcpb0A7D2A6zo8IyyLbJxUb3vG9DdiE4%2BtZ3rkNs4QHt1bBSf13RfBqu%2B1ek0eLlN3OcbdfOggj8N7RNMdNOwp%2BdrjzmKw18ySU%2B09xKiZWHjlAi%2BI9rq6qCfKyqk4yQxJNhygOdKMCiwwgyQGnyhSVutTdRo%7Ctkp%3ABFBMuru8yeFj

Also, with reference to the capacitor, it looks like the boards have a space for this on the top of the board "C1 100nF" if you can post a couple of pics of the boards front and back we can maybe check out the wiring tracks to see where they go to be sure they are in the right place.

Thanks

Thanks  Dave thanks Stacey,

I have used sockets, I had just inserted the chips already ,

My main concern is I think the resistor pulling to ground on the standard design but these boards of have capacitor in between 5v in (vcc) and chip I had thought of linking this into the V+ space and putting capacitor to ground? Think this basically replicates the standard design??

Hi Ryansym

I'm not sure where you are getting the need for a resistor from. There is no resistor in the original circuits, and I didn't use resistors when I built our pcb boards with the help of an electronics friend.  Your photos are a bit blurry but I found the boards on another site and have traced out the circuit as best I can. The Capacitor C100 is in the correct place in the circuit on the pcb. From your pictures, it looks like you have fitted the resistor? across V1 and Gnd? This is the supply for the board, you don't need a resistor there. As For the J1 on this board, I have no idea why that is there, it may be an ardunio requirement but it might be best to get some PCB pins and solder these in.You can then get some jumpers and if you need to just use those,

https://www.ebay.co.uk/itm/262755464818?chn=ps&_ul=GB&_trkparms=ispr%3D1&amdata=enc%3A1aluVEyIAQZ2-sd7z511Oew22&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&mkscid=101&itemid=262755464818&targetid=1647205088560&device=c&mktype=pla&googleloc=9045051&poi=1006644&campaignid=21197373540&mkgroupid=164243723987&rlsatarget=pla-1647205088560&abcId=9406788&merchantid=113738879&gad_source=1&gclid=CjwKCAjw57exBhAsEiwAaIxaZl2gYoQIvkt4XYXDSgJwr4y0-dQ2VoVdZgnNmLP5EHWVcVG1dv5neRoCxUEQAvD_BwE

https://www.ebay.co.uk/itm/295783330099?chn=ps&_ul=GB&_trkparms=ispr%3D1&amdata=enc%3A1_a2jihJbTq62EC1K76y7Rg45&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&mkscid=101&itemid=295783330099&targetid=1647205088560&device=c&mktype=pla&googleloc=9045051&poi=1006644&campaignid=21197373540&mkgroupid=164243723987&rlsatarget=pla-1647205088560&abcId=9406788&merchantid=6995734&gad_source=1&gclid=CjwKCAjw57exBhAsEiwAaIxaZmiSuLfbembZpHuJkEfeftl4_uyfP2vp10RrzemQFgqcUpKQOpNqaBoCm3IQAvD_BwE

thanks

Stacey