DSI621 Programmer
sensor operation without a PC
Materials
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.
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Component list
R1,R8,R9 = 10k
R2 = 1k 5
R3 = 10k 4-way SIL array
R4,R5,R6,R11 = 4k 7
R7 = 82k
P1 = 10k preset
Capacitors:
C1,C7,C8 = 10µ F 63V radial
C2,C5,C6,C9,C10 = 100nF
C3,C4 = 33pF
Semiconductors:
D1,D3 = LED, high efficiency
D2 = 1N4001
T1,T2 = BC547B
IC1 = 89C2051-12PC (order code 000159-41)
IC2,IC4* = DS1621 (Dallas) (Farnell # 670704) with holder
IC3,IC5* = 78L05
Miscellaneous:
K1 = LCD module, 2x16 characters (LTN211R-10, LM16A211, LM16A212)
K3,K4,K6 = 8-way IC socket with turned pins and thin connecting leads (Conrad Electronics #189600)
K2,K5 = 4- way SIL pinheader
S1-S4 = Pushbutton, 1 make contact (Multimec D6-Q or Marquardt, Conrad Electronics #706892 with cap)
S5 = slide switch, 1 changeover contact
X1 = 12 MHz quartz crystal
PC1-PC4 = solder pins
9-V PP3 battery with clip-on leads
PCB, order code 000159-1
Disk, all project software, order code 000159-11
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