Small RC4 Transmitter

We have published many articles in past issues of Elektor Electronics about IR data transmission using the Philips RC5 code. A prerequisite for these using these circuits has always been an RC5 remote control made by Philips or Loewe, or else a ‘home-brew’ RC5 transmitter based on the SAA3010 encoder IC. Philips has now officially discontinued its RC5 encoder, effective the end of last year. Nevertheless, it does not appear to be difficult to obtain small quantities of this IC from existing stocks — and that could remain true for some time to come.

This is a MEMBER ONLY article. You need a subscription to read this article.

Benefits of a subscription

Unlimited access to online Member Only articles
3 new editions Elektor Magazine (digital)
More than 5000 Gerber files
20% member discount on e-books (at elektor.com)
10% member discount on Products (at elektor.com)

View the offers
Available from €5.33 per month.

What is Elektor Exclusive?

Materials

024034-PCB.pdf

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

Download Gerber file: 024034-1.zip

Component list

Resistors:
R1 = 100?
R2,R3 = 1?5
R4 = 1k?
R5 = 6k?8
Capacitor:
C1 = 100µF 16V radial (low profile)
Semiconductors:
D1 = LED, red, 3 mm
D2 = LD274
T1 = BC517
IC1 = SAA3010 (see text)
Miscellaneous:
BT1 = two 1.5V batteries with holder
S1-S10 = pushbutton, PCB mount (e.g. ITT/Shadow D6)
X1 = 429kHz 2-pin ceramic resonator
JP1 = 3-way pinheader with jumper, or wire link
JP2 = wire link
S11 = 8-way SIP switch