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Learn-‘n-Go Infrared Remote Controlled Dimmer

for lamps and heaters

Learn-‘n-Go Infrared Remote Controlled Dimmer
This IR remote controlled dimmer works with a triac and in its standard configuration is suitable for light electric heaters and incandescent lamps up to about 1000 watts. The PIC microcontroller used in the project can learn control codes from almost any remote control. Here’s power dimming from the comfy chair.
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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
Component List
R1 = 120Ohm 5%, 5W
R2 = 120Ohm 5%, 0.25W, 250V
R3,R4,R7,R8 = 470kOhm 5%, 0.25W, 250V
R5 = 100Ohm 5%, 1W, 350V
R6 = 100Ohm 5%, 0.25W, 250V
R9 = 39kOhm 5%, 0.25W, 250V
R10 = 10Ohm 5%, 0.25W, 250V
C1 = 100nF 20%, 1000V, X1 class, 15mm lead spacing
C2 = 470nF 20%, 275 VAC, X2 class, 22.5mm lead spacing
C3 = 470µF 20%, 50V, diameter 13mm, 5mm lead spacing
C4,C6,C8 = 100nF 10%, 50V, ceramic X7R, 0.2” (5.08mm) mm lead spacing
C5 = 10µF 20%, 50V, diameter 5mm, 2 mm lead spacing
C7 = 47µF 20%, 50V, diameter 6.3mm, 0.1” (2.54 mm) lead spacing
C9 = 100pF 5%, 100V, ceramic C0G/NP0, 0.2” (5.08mm) lead spacing
L1 = 100µH 10%, 7.8A, R(DC) = 0.04Ohm, Murata Power Solutions type 1410478C
D1 = 1N4734A, 5V6 zener diode, 1W
D2,D3 = 1N4007, 1000V, 1A
TRI1 = BTB16-600SWRG
IC1 = PIC12F675, programmed, Elektor Store # 140279-41
IC2 = TSOP4838
K1-K4 = 0.25” (6.35mm) terminal, Faston, screw type, 3.3mm hole
S1,S2 = switch, tactile, 6x6 mm, PCB edge, Alps SKHHNKA010 (Mouser # 688-SKHHNK)
HS1 = heatsink, PCB mount, Fischer type SK 129 38,1 STS, 6.5 °C/W. For 1250 watts max.
F1 = fuse holder, 20x5 mm, 500V, 10A
F1 = 5A fuse, slow-blow, (T), 5x20mm
PCB 140279-1 v2.0
Case: Hammond type 1591ETBU
Not on PCB: electrical outlet socket, DIN 49440, 16A, 250V, IP20, panel mount (Schuko; German style); RS Components part no. 824-5627. UK and US socket types: see text.

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