Surface mount Picaxe
- Thread starter itolond
- Start date
rq3
Senior Member
All of my Picaxe have so far been surface mount. I fabricate a printed circuit board and use a Switchcraft surface mount 3.5 mm jack to connect to the programming cable (Switchcraft P/N 35RASMT4BHNTRX)
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You don't have to program any PICAXE in the experimenter kit. You can just obtain a download socket (surface mount or not) and put it on the PCB with the PICAXE.
You can also use an SMD-DIP adapter to program the PICAXE using the experimenter kit.
i use a soic to dip adapter to program mine before putting on custom boards.
if i make a board that has room to allow it then i also incorporate a 3 pin micro jst socket and use the smd download style socket on another fabricated "programming adapter" board which has the micro jst plug to connect to the board i have made and can program it as needed.
if i make a board that has room to allow it then i also incorporate a 3 pin micro jst socket and use the smd download style socket on another fabricated "programming adapter" board which has the micro jst plug to connect to the board i have made and can program it as needed.
For a rough and ready solution, if the board has holes for 0.1" headers or pins, it's often possible to place pin headers into those holes, pull the two headers together with an elastic band so they grip the holes, and that make a pretty solid connection. Just need to solder the appropriate pins to a jack socket with flying wire.
I was surprised how cheaply you can get professional quality SOP8 to DIP8 Adapter sockets - $8 with free postage worldwide.
http://dx.com/p/150698
http://dx.com/p/150698
westaust55
Moderator
Nothing wrong with the Switchcraft item but if buying PICAXE parts from Rev Eds online store (Techsupplies) or other distributors then you may wish to keep in mind that Rev Ed / TechSupplies also sell an SMD stereo programming socket:
http://www.techsupplies.co.uk/epages/Store.sf/en_GB/?ObjectPath=/Shops/Store.TechSupplies/Products/CON039SM
westaust55
Moderator
That adapter seems to have a small barrier to locate the SMD IC in the first part to connect via 8 pins within a socket wiht about 20 pins capability.
Wonder if removing the barrier in the middle would allow one to use same to socket to at least program 14M and 20M parts where the "upper" 4 pins power power and programming are located in the same place for each PIACXE chip.
i have one similar to that which i got from everyone's favorite online cheap place lol, only cost me about $9 and allows up to 16 pin count soic chips, so it works great for my 8 and 14 pin smd picaxe.
clarification, I don't own a hair dryerYou can buy surface mount solder paste, paint it on, then place your chip then get the wife's (or yours) hair-drier out!
They sell the 16 pin version for $10 - http://dx.com/p/153890
It might work, have not tried it, you need 180-220^C to get it flowing. See Dave's eevblog at 23-mins in to see it working with his gun.@g6ejd Does a hairdrier get hot enough? I would've though you'd need more heat than one can provide but I'm tempted to have a go now
http://www.youtube.com/watch?v=qyDRHI4YeMI
If hair-driers get hot enough for surface mount then that explains my bald patch.
There are some nice little blowers around with small nozzles and able to turn down the puff so you don't blow all your carefully placed SMDs off the PCB and onto the floor.
For one-off borads and an 'andfull of components paste, tweezers and a fine point are good enough.
There are some nice little blowers around with small nozzles and able to turn down the puff so you don't blow all your carefully placed SMDs off the PCB and onto the floor.
For one-off borads and an 'andfull of components paste, tweezers and a fine point are good enough.
Good light and a magnifier (either djustable light and binocular strap-on magnifier or a large lens with light) also help.
Always worthwhile checking out ebay. Today when I check this SOP8 to DIP8 adapter can be had for AU$1.79 with free delivery!
http://www.ebay.com.au/itm/SO8-SOP8-To-DIP8-EZ-Programmer-Adapter-Socket-Converter-Module-For-Wide-150-Mile-/270938688803?pt=AU_B_I_Electrical_Test_Equipment&hash=item3f15344d23