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Wi-Fi Controller Board

Control RGB LED strips, motors, relays & stuff, but no wires

Wi-Fi Controller Board
With Wi-Fi modules pervasive it’s high time to start thinking about adding household appliances to your home Wi-Fi network. Controlling your home from your mobile phone has never been easier thanks to the universal Wi-Fi controller board presented here. Although we used it to set the color of an RGB LED strip, you can use the board for a plethora of other applications.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Resistors (5%, 0.25W)
R1,R2,R3,R4,R5,R8 = 1kOhm
R6,R7 = 47kOhm
R9 = 10kOhm
C1,C2 = 22pF, ceramic, 50V, 2.5mm pitch
C3,C5,C7 = 100nF, Z5U, 50V, 5mm pitch
C4,C6 = 10µF 63V, radial, 2.5mm pitch
C8 = 330µF 16V, radial, 3.5mm pitch
C9 = 100µF 50V, radial, 3.5mm pitch
L1 = 330µH 1A, 5mm pitch, e.g. Würth Elektronik type 7447452331
D1,D3,D4,D9,D10,D11 = 1N5819
D2 = 3V zener diode, e.g. BZX79-C3V0
D5,D6,D7,D8 = LED, green, 3mm
IC1 = PIC18F14K50-I/P
IC2 = MCP1825S-3302E/AB
IC3 = LM2575T-5.0/NOPB
T1,T2,T3 = IRL540
T4 = BC547
MOD1 = WizFi220 w. antenna, Elektor # 130076-92
JP1 = 6-pin pinheader, 0.1" pitch, vertical
JP2 = 5-pin pinheader, 0.1" pitch, vertical
JP3 = 2-pin pinheader, 0.1" pitch vertical
Jumper for JP3
K1 = USB-B receptacle
K2 = Connector 1x4, 90deg, 0.2" pitch, e.g. MSTBA4
K3 = DC socket
20-way DIP socket for IC1
S1 = Multimec type RA3FTL6 w. cap type S09-16.0
X1 = 12MHz quartz crystal, HC49/S case
Enclosure, Hammond type 1593QGY
PCB, Elektor # 120718-1

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