- on Home & Garden
- Published in issue 5/2000 on page 0
RC5 Sleep Timer
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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.
R1 = 10?
R2-R6 = 1k?
R7 = 10k?
R8 = 3k?9
C1 = 47µF 16V radial
C2 = 100nF
D1-D4 = low-current LED, red
D5 = low-current LED, green
D6 = LD271 or SFH485 with reflector
T1 = BC547
IC1 = PIC16F84-04/P, programmed, order code 000026-41
X1 = 4MHz ceramic resonator (Conrad Electronic #50 31 69)
S1-S4 = miniature pushbutton, 1 make contact, 6?6 mm2 for board mounting (Conrad Electronic #70 04 60, Bourns #7906H-001-000, Farnell #535-916)
10-way pinheader, plus up to 5 jumpers
Toko handheld transmitter case (Conrad Electronics #52 43 44)
Battery holder for 2 ‘Micro’ batteries
PCB, order code 000026-1
Disk, order code 000026-11
Conrad Electronics are at http://www.conrad-electronic.com