RS-485 Switch Board
ElektorBus relay module
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.
Components
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
SMD shape 0603
R1,R2,R3 = 10kOhm
R4 = 0Ohm
R5 = 120Ohm
R6 = 4.7kOhm
R7 = 1.5kOhm
R8 = 10Ohm
Capacitors
C1,C2 = 22pF NP0 (0603)
C3,C4,C5 = 100nF X5R (0603)
C6,C7,C8 = 4.7µF X5R 10V (0805)
C9 = 4.7µF X5R 25V (0805)
Semiconductors
D1 = S1M (1000V / 1A)
LED1,LED2 = LED, green (0603)
IC1 = ATmega88A-AU, programmed
IC2 = AP78L05SG-13
IC3 = DS2003TM/NOPB
IC4 = LT1785CS8#PBF
Miscellaneous
RE1,RE2 = 12V, SPST-NO (e.g. G5Q-1A-EU DC12)
JP1, JP2 = 2-pin pinheader, lead pitch 0.1 in. (2.54mm)
K1,K2 = 6-pin pinheader, lead pitch 0.1 in. (2.54mm)
K3 = 6-way screw terminal block, lead pitch 3.81mm
K4 = 3-way screw terminal block, lead pitch 7.62mm
K5 = 3-way screw terminal block, lead pitch 3.81mm
X1 = 16MHz quartz crustal, HC-49S case
S1,S2 = pushbutton, SPNO (e.g. B3S-1000)
PCB # 110727-1
alternatively
Ready assembled and tested board # 110727-91
We buy at:
Discussion (0 comments)