and welcome back now this week we're going to be looking at this very very small board here which is a bluetooth audio transmitter so requires something like line input left right ground from a radio or stereo system or whatever and it will transmit it to a bluetooth speaker or of course a set of headphones something like that that has the bluetooth capability now it is very very small so let me um zoom back out again just to get an appreciation of its tiny size i want to do a shout out for jlc pcb no stop stop don't go away look what they're doing two dollars for aluminium circuit boards this is absolutely incredible if you've ever wanted to try an aluminium pcb now's the time to do it now remember aluminium pcb is a single sided normally with the aluminium on the bottom then you have a dielectric layer that transfers the heat up to the top copper layer now aluminium is very very strong and it will suck the heat away out of your components without the need for extra heat sinks for example go and have a look at their website and check them out and there's more jlc pcb now allow you to create your own parts library because there's nothing more disappointing than creating a pcb and then finding you can't get the parts or there's a big long delay now you can create your own custom parts library to ensure you get the components you need and of course the associated footprints so you know they're going to fit on the pcb itself to get to this page that describes everything you ever need to know about creating your parts library simply go to their home page and then click on the link at the top very very simple and a really really useful feature go and check out jlcpcb now so here it is a little bit closer to the screen i'm holding it with a pair of tweezers because my fat chubby fingers would just cover the thing entirely now there is one issue with this that uh when i bought it i thought oh dear that's going to be a bit of a problem as you can see from the outside edge these holes here and indeed they're castilated as well if you want them to be are very very small in fact it's NUMBER_TOKEN millimeter separation to give you an idea of what that means most breadboards and pin headers are NUMBER_TOKEN millimeters wide so basically double the width of this now whilst you can still solder on here just about you know it's a bit of a challenge what we really need is some kind of breakout board so what i did initially was to take one of these which is um i think it was a some kind of soft NUMBER_TOKEN or something like that oh there it is sop NUMBER_TOKENp look and just used half of it and basically soldered that on there and then i could plug this into my breadboard to try it out because i wanted this for my espNUMBER_TOKEN web radio because i want to transmit to a bluetooth speaker basically but what we really need is some kind of proper breakout board don't we something along the lines of this now this module obviously solders directly on there with the cascalated holes perfectly and there's a couple of components on there if you want to put them on you don't have to but it allows for that and uh yeah it uh
START_SPONSOR_TOKEN size i want to do a shout out for jlc pcb no stop stop don't go away look what they're doing two dollars for aluminium circuit boards this is absolutely incredible if you've ever wanted to try an aluminium pcb now's the time to do it now remember aluminium pcb is a single sided normally with the aluminium on the bottom then you have a dielectric layer that transfers the heat up to the top copper layer now aluminium is very very strong and it will suck the heat away out of your components without the need for extra heat sinks for example go and have a look at their website and check them out and there's more jlc pcb now allow you to create your own parts library because there's nothing more disappointing than creating a pcb and then finding you can't get the parts or there's a big long delay now you can create your own custom parts library to ensure you get the components you need and of course the associated footprints so you know they're going to fit on the pcb itself to get to this page that describes everything you ever need to know about creating your parts library simply go to their home page and then click on the link at the top very very simple and a really really useful feature go and check out jlcpcb now so END_SPONSOR_TOKEN