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Smartphone A/V Remote Control

Transmitter plus App for Android devices

Smartphone A/V Remote Control
The best types of universal remote controller come equipped with a large touch screen, just like the one on your Smartphone. So why not use your phone to control all the A/V appliances at home?
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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 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.
Component list
R1-R4,R6-R9,R13-R20 = 270Ohm
R5,R25,R26 = 1kOhm
R10,R24 = 10kOhm
R11,R12 = 4.7kOhm
R21,R22 = 10Ohm
R23 = 100Ohm
C1,C2,C3,C4,C7,C13,C14,C15,C16 = 100nF
C5,C6 = 22pF ceramic
C8,C11,C12 = 10?F 25V radial
C9,C10 = 100?F 25V radial
D1,D5,D6 = LED, red, 3mm, low current
D2,D7 = 1N4001
D3,D4 = TSAL6200 (Vishay) 940nm IR transmitter diode
LD1,LD2 = SC39-11SURKWA (Kingbright) 7-segment-LED display, 10mm
IC1 = CAT24C512LI-G (On Semiconductor)
IC2,IC4 = 74HC595N
IC3 = ATmega88-20PU (Atmel), programmed, Elektor # 120043-41 [2]
IC5 = ULN2803APG
IC6 = TSOP32236IR (Vishay) 36kHz IR receiver
IC7 = 7805
IC8 = LF33CV (STMicroectronics)
Mod1 = BTM-222 (Rayson) Bluetooth module
X1 = 14.7456MHz quartz crystal
Re1 = 6V SPDT relay (1x c/o contact), Finder
S1,S2,S3 = tactile switch, SPNO, round
JP1,JP2,JP3 = 2-pin pinheader with jumper
K1 = 6-pin (2x3) pinheader
K2 = 3-pin PCB screw terminal block, pitch 5mm
K3 = 4-pin SIL connector
K4 = low voltage adaptor socket, 2.1mm
PCB 120043-1 [2]

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