- on Home & Garden
- Published in issue 3/2003 on page 0
Intelligent Fan Timer
Using the MSP430 low-power processor
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.
R1 = 8k?2
R2,R5,R7,R8,R10 = 10k?
R3,R4 = 47k?
R6 = 1k?
R9 = 270k?
C1 = 47nF 400V, Class X2
C2 = 220µF 16V radial
C3-C6 = 100nF
D1,D4-D11,D14 = 1N4007
D2 = zener 3 V/500 mW
D3,D13 = BYV10
D12 = 1N4148
T1 = BC327
THY1 = TIC106D
LD1 = HD1105-O
IC1 = MSP430F1121, programmed, order code 020170-41
K1,K2 = 2-way PCB terminal block, lead pitch 7.5mm
F1 = fuse, 500 mAT (time lag), with PCB mount holder
S1 = pushbutton, 1 make contact, Class 2 (for test purposes only)
S2 = pushbutton, 1 make contact, Class 2, e.g., Omron type A3DT-7111 with cap A3DT-500R (Farnell)
Tr1 = approx. 20 turns, bifilar, on Philips core TN14/9/5 (material: 3C85)
Enclosure: e.g., Hammond type 1591B (red)
Disk, project software, order code 020170-11 or Free Download
PCB available from The PCBShop