Kawaii PANDACORN
Introduction: Kawaii PANDACORN
Hey everyone!
So this is PANDACORN, A PCB badge that looks like a fusion between a panda and a unicorn.
It's an Attiny13A Powered PCB badge that drives 6 Blue LEDs with help of a simple Mosfet as switch setup.
I've designed this badge in such a way that the LEDs on the bottom side will be visible from the TOP side, Not LEDs exactly but their glow is visible through PCB as I've left an opening in the TOP solder mask area and soldered the LEDs inverted, so they would shine right through the fr4 board.
I saw this technique in a PCB badge on tindie and it was looking so great so I had the idea of making a glowing unicorn horn with this same method, so I prepared this Pandacorn PCB Badge.
So in this Instructables, I'll be showing you guys the whole built process of this PCB badge, also I have made similar projects in recent months which you can also check out if you're interested in these badge-based projects.
https://www.instructables.com/Flux-Capacitor-PCB-B...
https://www.instructables.com/Yet-Another-Badge-a-...
https://www.instructables.com/Goku-PCB-Badge/
also, you can buy this badge from tindie!https://www.tindie.com/products/pselectrobot/kawaii-pandacorn/?utm_source=twitter.com&utm_medium=social&utm_content=tweet&utm_campaign=new_product_tweets
Supplies
Material Required
* Custom PCB
* LEDs 0603 Blue
* Attiny13A
* Coin Cell holder
* A03400 Mosfet
* 10K Ohms Resistors
* USB Port
* Switch
* SMD Button
The Bill of material is attached.
Step 1: Operating of Pandacorn
The state of the mosfet is controlled by a tap of a button.
* On the first Tap, the LEDs start to Fade In and Out in a constant loop,
* On the second Tap, the LEDs start their blinking sequence,
* and on the third tap, LEDs turned LOW.
And this tapping thing goes in a loop, Tap 1, tap 2, tap 3 then repeat.
Step 2: Getting Started
The first step of making anything is to visualize or think about what we have to make, like in my case, I wanted to make a Panda - unicorn hybrid animal PCB, so I prepared this above illustration in which there's a panda, with a horn which he borrowed from a unicorn fella.
This horn will have LEDs on it or behind it, at first I prepared a 555 timer ic setup for the PCB but later I discarded it with the attiny13A setup which is attached above.
I prepared the schematic on my Orcad PCB Designing suite.
The setup was relatively simple, we have an Attiny13A connected with an N channel mosfet, N channel mosfet is driving 6 LEDs which are all connected in parallel with each other.
Attiny13A and these LEDs are then powered by a Coin cell or a USB pot which are both connected in parallel so two powers can be used to power this mighty badge.
Step 3: Construction of PCB Schematic and Board Design
After Finalizing the schematic, I then prepared its PCB board. now for the illustration of the PANDACORN, I use a Panda image that I found on the INTERNET.
* I imported the image in my PCB Design on the top silkscreen layer so I could add a graphically pleasing image on the PCB board to make it more fun and less gloomy, more like an ART Piece.
* After getting the basic shape ready, I place all the SMD components on the bottom side of the board, from the top side, only the silkscreen will be visible and all the components will be placed on the bottom side.
* I added 0603 package LEDs in this PCB but I used a 0805 pad, this is because I will solder the 0603 LED in an oriented position with a soldering iron so it's better to add a wider pad for convenience.
* Anyway, I then connected all the tracks and completed this PCB.
* I exported its Gerber data and then send it to a PCB manufacturer for samples.
Step 4: PCBWAY Review
I uploaded the Gerber data to the PCBWAY's quote page, I wanted to do something different this time so I choose the blue solder mask, I generally get PCBs in white solder masks but this time I choose a blue one. 982