USB IR Toy: Quick Start
From DP
This is a guide to building your IRToy with the free PCB coupon. With this guide I hope to answer all the questions I had when I received my pcb.
Contents |
Components
This depends on the pcb version. In my case it was the 1.1 version.
USB Infrared Toy v1.1
This is the shopping list that I've used. I put it back because the official has some bugs. I follow this schematic.
| Part | Quantity | Value |
|---|---|---|
| C1 | 1 | 0.1uf |
| C2,C3,C4 | 3 | 0.22uf |
| C5,C6 | 2 | 27pf |
| C7 | 1 | 1.0uF |
| D1 | 1 | BAS16HT1G |
| I | 1 | LED SMD |
| IC1 | 1 | PIC18F2550_28W |
| J1 | 1 | CON-USB-MINI 5PIN B TYPE |
| ICSP, JP1, UART | 1 | 40p HEADER TIN |
| Q1 | 1 | 20Mhz |
| R1, R6 | 2 | 10k |
| R2 | 1 | 2K7 |
| R3 | 1 | 390R |
| R4 | 1 | 180R |
| R5 | 1 | 1K |
| RX1 | 1 | TSOP38238 |
| RX2 | 1 | QSE159 |
| S1 | 1 | SMD_TACT_SMALL |
| T1 | 1 | BC81840MTF |
| TX | 1 | 100mA IR LED |
To buy components only click HERE and buy.
When you have the components the table above helps you to know easily the value of each component.
Assembly
When you receive the components, the first thing you should do is check that you have received all the components in the order.
- For the first step, I recommend soldering the usb-mini connector, then C2 and the row in front D1,R1,R6,C3,C4,R3,R4,C7 and TX1.
- Second step is to solder IC1.
- Finally, solder the missing components.
This method is optional but I would recommend it if I were to build another. I followed another method and I had trouble soldering some components.
Checking
To check if everything is soldered and works I used a BusPirate v3.
Connect the pin +5V and GND of BusPirate to the +5V and GND of the IRToy in space of JP1.
Open a terminal and put these commands:
And you should see this:
Firmware
When you check your pcb, it´s time to load the firmware. For this, you will need a PICkit, ICD3 or anything else to program the PIC hex files.
For this step I can´t explain very well because I haven´t a programmer, I gave it to a friend. [If someone wants to add it here I would appreciate it].
Release package with firmware, utilities, PCBs:
Hello World
After you burn the hex file into the PIC, you can connect it to a PC and follow this tutorial.
- USB IR Toy 101: Drivers, setup, applications, etc.
Test
For testing the device, follow this tutorial.