Article
Return of the Wi-Fi Controller Board
www-connect objects to your smartphone
Connected Objects is what people covet today. Anything except the dog’s temper has to be controllable from a smartphone or tablet and even more ‘stuff’ must report back via the internet. If that’s what you really want, who are we to refute that desire? With our revamped Wi-Fi Controller Board you can control electric loads over the Internet and receive status information in return.
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD 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 the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
PCB
Extra info / Update
January 3, 2017 – The file 150402.html was flawed and did not allow all 8 GPIO pins of K4 to be controlled. This has been corrected in the download available above.
Component list
Component List
Resistors (0805)
R3,R4,R5,R6,R7,R8,R9,R10 = 10kOhm
R1,R2 = 220Ohm
Capacitors (0805)
C1,C3 = 100nF
C2,C4 = 10µF 16V, case A
Semiconductors
IC1 = LD1117DT33
IC2 = ATmega328P-AU, programmed, Elektor Store # 150402-41
T1,T2,T3 = NDT3055L
D1,D2,D3,D4 = S1A
LED1 = LED, yellow
LED2 = LED, green
K1,K2 = 2-way PCB screw terminal block, 0.2’’ pitch
K3 = barrel jack, 2.5mm
K4 = 9-way pinheader socket, 0.1’’ pitch
K5 = 8-way (2x4) pinheader socket, 0.1’’ pitch
K6 = 6-way (2x3) pinheader, 0.1’’ pitch
Miscellaneous
ESP8266 Wi-Fi module, Elektor Store # 150445-91 (SKU-17326)
PCB v1.6, Elektor Store # 150402-1
ATmega firmware & fuse settings from [2]
App from Playstore: “WiFi control” by Elektor Team [3]
Resistors (0805)
R3,R4,R5,R6,R7,R8,R9,R10 = 10kOhm
R1,R2 = 220Ohm
Capacitors (0805)
C1,C3 = 100nF
C2,C4 = 10µF 16V, case A
Semiconductors
IC1 = LD1117DT33
IC2 = ATmega328P-AU, programmed, Elektor Store # 150402-41
T1,T2,T3 = NDT3055L
D1,D2,D3,D4 = S1A
LED1 = LED, yellow
LED2 = LED, green
K1,K2 = 2-way PCB screw terminal block, 0.2’’ pitch
K3 = barrel jack, 2.5mm
K4 = 9-way pinheader socket, 0.1’’ pitch
K5 = 8-way (2x4) pinheader socket, 0.1’’ pitch
K6 = 6-way (2x3) pinheader, 0.1’’ pitch
Miscellaneous
ESP8266 Wi-Fi module, Elektor Store # 150445-91 (SKU-17326)
PCB v1.6, Elektor Store # 150402-1
ATmega firmware & fuse settings from [2]
App from Playstore: “WiFi control” by Elektor Team [3]
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