Good morning, all new printed circuit boards from jlc pcb sealed in box. So let's break the seal and take a look at this. Oh how ironic i have the same gift as what i've got already on my desk. Yes, these are nail clippers in case you were wondering that's what they are right here are the boards.

Now, if you've been watching the last couple of videos on these boards, you'll know that i had them made by jrc pcb's smt assembly service. In fact, you watched me do the schematic capture as they call it the schematic design and then the pcb layout, and then i ordered them, and it's been about four or five days. I guess, but here they are so what have we got? We've got um an ld, 33 regulator, we've got led and - and i still don't know the color of this - so we'll find that out today and that was a 1k resistor. I believe you can have a closer look at that in a moment.

Capacitors. Of course, these aren't marked, but we can see by their varying heights. That's surely the 10 microfarad. This must be the 100n, and these must be the 10ns, and that's it.

That's all that's on there. This is the connector. Oh and i've just received uh i'll, bring that into shot in the moment the 4x2 connector for that i've got some angled pins for that. So it shouldn't take long to plug this into my arduino board, which is this and it's working.

I changed the battery in the shed yesterday and see if this works. I hope it does yeah someone was selling 20 of these things, uk seller, because i needed to get them quite quickly and there isn't such a price difference these days between local sellers and chinese sellers, because we're getting all the vat and postage costs now from china. So that's good! I can solder that into let's take one of these off. Actually, oh that one.

I can solder that into the connector at the top i'll find a right angle, connector and then we're kind of done, and i still want to see what color that led is. Okay, look i'm gon na come clean. I just cheated. I just cheated - and i put five volts on to the ground and vcc and it's a blue led and actually that's surprisingly bright uh.

Yes, five volts, there's 3.3 on the output 3.3 with a 1k resistor. You wouldn't thought that would be very bright but uh. That's more than bright enough! Well, that's a good start! Now. The eagle-eyed amongst you will have noticed something.

These boards are green and i did say in the two design, videos or the second design, video that i was going to order them in black. So i've just gone on to my jlc pcb account and yes, i did indeed order them in green, so i got that wrong. That's a bit of a slip up! I mean it really doesn't matter at all: it's purely aesthetic but yeah. I made a mistake there and ordered i didn't change the uh color box at the last minute.

I will never mind the important thing is that they work. So let's have a five-way right angle, connector, so that my radio tower sits vertically, that's soldered in now. So i can put this in and see how it looks in terms of centering. It's not too bad.

I don't think i've quite got it centered, but it's not far off. I wanted a bit of an offset on that connector so that the thing looked reasonably symmetrical, because we've got that capacitor sticking out the edge of the wireless board anyway right. Let's get my right angle connector in plug it into my board, see if it oh, i've got a two pin connector as well right, that's ready to go! So, let's take out the old radio tower and i've got to remember that i'm working from d13 to d9! So i'm going to be biased that way with my 5 pin connector, vcc and ground i've marked on there, so it says ground vcc. That means gray is ground.

Purple is vcc on here that plugs in there, and that is my new radio tower, with built-in 3.3 volt regulator to drive the nrf 24l01 plus uh wireless board. Now this is powered by 3.3 volts, but it has 5 volt, tolerant signal lines. Of course, all these signals coming in off the arduino are five volts in swing, but um the unit itself runs on 3.3. So that's it should plug it in no rehearsal.

Let's do it live and see if it works. So if you'd, like a ten dollar pcb plus smd assembly, uh discount coupon, then go to this page link is in the description below and uh do join the facebook jlc pcb easy eda page i've joined it here. I am on that group currently 396 members to join that. The link to that is also in the description below.

I can see a blue light on there, where we go so we're getting telemetry data from the shed. Now i guess what i could do is make up another one of these and actually put it in the transmitter. Let me go and get the transmitter i'll bring it in from the shed as i've just noticed that the arduino nano has a red power. Led the nano expansion board has a yellow power led uh.

The ttp touch sensor has a green power led and my radio tower has a blue power led the full set. So that's my radio receiver here is my transmitter. Let's move the receiver out for a moment. There's the transmitter.

Now it's in two parts. I've got a big 4 amp hour power tool battery i've got the usb header that goes with that. That instantly is fairly warm, which probably explains why this, why this thing only runs for four days off that massive battery, quite a comparison to the little um uh zigbee devices i've been playing with recently, which are designed to run off a 2032 coin cell. For i don't know a year or something but anyway here's my radio tower uh.

Now the only thing is this one's quite long and the power is quite high up so i'll. Just actually i'm not going to push that down i'll. Try pushing that down and getting my new radio tower in there right. Let's take the power out of this one.

Remove the radio tower take out its vcc and ground vcc is red. Take out. This is all covered in cobwebs because it's been in the shed plug it into my new board, plug that in with d13 in the correct place, and now, as i say, i might be able to slide that down. Pull that through and now get ground and vcc, which is that way around? Can we see what's going on that way around onto my power connector, that's the little um or what is it uh? Yes, it's the si7021 temperature and humidity sensor, which is i squared c.

I believe the nrf radio, of course, is spi, which is why it's using d13 down to d9. I think 13, 12 and 11 are the hardware spi pins uh. This three pin connector here goes to the relay board, because this has a relay to control. Switching on and off the fan, but that should be it so, let's bring the receiver back into shot, put the transmitter there and reconnect the power if it will reach it, will now plug it in oh switch it on, and is it transmitting? Yes, i think it is so it looks like my radio tower board is a success.

Uh the led is blue. If anyone was wondering that particular led that i chose i made these green by mistake, never mind. I can live with that. The original proto boards were green after all and uh.

This video is probably quite short compared to my normal videos, because having the components put on for you does make life a lot easier. Now i was going to have a look at that resistor. So, let's see, if we can do that, can we see that it's an a01b marking, which i vaguely remember as being 1k but yeah? That's it it's pretty straight forward. Hopefully that's the end of my radio tower project.

Thank you for sticking with me on this one. Cheerio.