psu
  • on Miscellaneous Electronics
  • Published in issue 3/2014 on page 42
About the article

Mini Modules for Breadboarding

PSU, LED, pushbutton, PIC or LCD, etc.

Mini Modules for Breadboarding
I like using solderless breadboards, except when you have to build the same circuit element for the umpteenth time—for example, a 5-V supply complete with decoupling, or a drop-in microcontroller. So I’ve made these into modules that can be plugged directly into the board. Now I only need nine wires to build a PIC voltmeter and LCD display!
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Products
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Gerber file

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.

Components
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.
1. Supply Module, 130276-1

Resistors
R1 = 2.2kOhm

Capacitors
C1,C2 = 100nF (.2’’)
C3 = 100µF 25V, radial (3.5mm)

Semiconductors
D1 = 1N4004
IC1 = 7805
LED1 = LED, 3mm, low current

Miscellaneous
S1 = PCB mount switch, e.g. C&K Components 1101M2S3AQE2 (1437701)
Heatsink, 18K/W, for IC1, ML26AAG, Aavid Thermalloy, RS Components # 712-4260
K1 = 2-way screw terminal block, .2’’ pitch
K2 = 3-pin pinheader, .1’’ pitch
K3, K4 = 5-pin pinheader, user modified (see text) Harwin D01-9923246 (1022218) (see text)


2. Multi-Purpose Module, 130276-2
-2-C_LED-Top en -2-L-Bottom

Resistors
R1,R2,R3 = 1kOhm
R4 = 10kOhm
P1 = 10kOhm trimpot, alt. with spindle

Semiconductor
3 pcs LED, low current

Miscellaneous
K1 = 5-pin pinheader, Harwin D01-9923246 (1022218)
K2 = 5-pin pinheader, user modified, Harwin D01-9923246 (1022218)
S1 = pushbutton D6C30LFS, C & K Components (1201368)


3. LCD Display Module, 130276-3
-3-C-Top en -3-L-Bottom

Resistors
R1,R2,R3 = 1kOhm
P1 = 10kOhm multiturn, Bourns 3006P (9352295)

Miscellaneous
K1 = 14-pin pinheader, Harwin D01-9923246 (1022218)
K2 = 5-pin pinheader, user modified, Harwin D01-9923246 (1022218)
LCD1 = LCD, 2x16 characters, Vatronix TC1602C (Elektor Store)


4a. PIC16F690 Module, 130276-5
-4-C-Top en -4-L-Bottom

Resistor
R1 = 10kOhm

Capacitors
C1 = 100nF
C2,C3 = 22pF (only with XTAL X1)

Semiconductors
IC1 = PIC16F690-I/P

Miscellaneous
K1 = 6-pin pinheader, .1’’ pitch (e.g. 1822166)
K2 = 20-pin pinheader, Harwin D01-9923246 (1022218)
K3 = 5-pin pinheader, user modified, Harwin D01-9923246 (1022218)
X1 = 20MHz quartz crystal (max.), or ceramic resonator (w/o C2/C3)


4b. PIC24HJ64GP502Module, 130276-5
-5-C-Top and -5-L-Bottom

Resistors
R1 = 10kOhm
R2 = 1kOhm

Capacitors
C1 = 100nF
C2 = 10µF 25V, radial

Semiconductors
D1 = LED, 3mm, low current
IC1 = PIC24HJ64GP502-I/SP

Miscellaneous
K1 = 6-pin pinheader, .1’’ pitch (1822166)
K2 = 28-pin pinheader
K3 = 5-pin pinheader, user modified, Harwin D01-9923246 (1022218)
X1 = ceramic resonator
JP1 = jumper

PCB # 130276-2, 12-module panelized board (see opposite page)
(number in brackets: Farnell/Newark order code)

R1 = 10kOhm
R2 = 1kOhm
Capacitors
C1 = 100nF
C2 = 10µF 25V, radial
Semiconductors
D1 = LED, 3mm, low current
IC1 = PIC24HJ64GP502-I/SP
Miscellaneous
K1 = 5-pin pinheader, .1’’ pitch (1822166)
K2 = 5-pin pinheader, user modified, Harwin D01-9923246 (1022218)
X1 = 20MHz (max.) quajkrtz crystal, or ceramic resonator (w/o C2,C3)
JP1 = jumper
PCB # 130276-2, 12-module panelized board (see opposite page)
(number in brackets: Farnell/Newark order code)

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