Component Parts List

Below is a list of all components required to fully populate the LedLabs prototyping PCB. You can either purchase a blank PCB and locate your own components or purchase a PCB with all components included.  Potentiometers trimmer resistors recommended are the bourns type brand, or of similar quality.

 

download_pdf

8 BIT PORT TEST

8 X 1K RESISTOR
1 X SIL CONNECTOR 8-WAY
8 X 5MM LEDS 3 GREEN, 3 RED, 2 YELLOW (OR ANY COMBINATION)

COUNTER SECTION

2 X COMMON CATHODE 7 SEGMENT DISPLAYS RED (OR ANY OTHER)
2 X 16 PIN DIL IC SOCKETS
2 X 4026B DECADE COUNTERS
2 X TACTILE SWITCH
2 X 1K RESISTORS
14 X 330R RESISTORS (lesser values can be used as 4026 can work without resistors at 5 v) if using green 7-segment displays reducing the resistor value to 100R, will allow for brighter display.
1 X 560K RESISTOR
4 X SIL CONNECTOR 1-WAY
4 X SIL CONNECTOR 5 –WAY

STEPPER MOTOR SECTION

1 X STEPPER MOTOR 5V 4-PHASE 28BYJ-48
4 X 3MM LEDS RED (OR ANY OTHER COLOUR)
4 X 1K RESISTORS
1 X 16 PIN DIL IC SOCKET
1 X ULN2003 DARLINGTON DRIVER IC
1 X SIL CONNECTOR 4-WAY
1 X SIL CONNECTOR 5-WAY (HEADER TYPE WITH PINS)

555 MONOSTABLE SECTION

1 X 555 TIMER IC
1 X 8 PIN DIL IC SOCKET
1 X 470K POTENTIOMETER
2 X 10K RESISTORS
2 X 1K RESISTORS
1 X BC337 NPN SMALL SIGNAL TRANSISTOR
1 X 5V BUZZER (OR 3V BUZZER)
1 X 3MM RED LED (OR OTHER COLOUR)
1 X 1N4148 FAST LOGIC DIODE (OR ANY OTHER GENERAL PURPOSE TYPE)
1 X 220UF ELECTROLYTIC CAPACITOR 6V (OR ABOVE)
1 X TACTILE SWITCH
1 X 10NF CERAMIC CAPACTITOR
1 X SIL CONNECTOR 2-WAY

555 ASTABLE SECTION

1 X 555 TIMER IC
1 X 8 PIN DIL SOCKET
1 X 1UF ELECTROLYTIC CAPACITOR 6V (OR ABOVE)
1 X 47NF CERAMIC CAPACITOR
1 X 2.2NF CERAMIC CAPACITOR
1 220 PF CERAMIC CAPACITOR
1 X 10NF CERAMIC CAPACITOR
1 X DIP SWITCH 4-WAY
1 X 3MM LED RED (OR ANY OTHER COLOUR)
1 X 27K RESISTOR
1 X 56K RESISTOR
1 X 1K RESISTOR
1 X 1M POTENTIOMETER
1 X SIL CONNECTOR 2-WAY

LARGE LED SECTION

1 X RED 1 WATT LED
1 X GREEN 1 WATT LED
1 X BLUE 1 WATT LED
1 X ULTRA-VIOLET 1 WATT LED
1 X INFRA-RED 1 WATT LED
1 X 3MM RED LED
1 X 3MM GREEN LED
1 X 3MM BLUE LED
1 X 3MM ULTRA-VIOLET LED
1 X 3MM INFRA-RED LED
5 X 1K POTENTIOMETERS (488-5300 RS PRODUCT CODE)
5 X BC337 SMALL SIGNAL TRANSISTORS
5 X 20R 1 WATT RESISTORS
5 X 1K RESISTORS
3 X 4K7 RESISTORS
1 X 22K RESISTOR
1 X 1.2K RESISTOR
5 X SIL CONNECTORS 2-WAY
10 X CONNECTOR WIRE FOR LED (USE STIFF TYPE TO SUPPORT LED)

LM3914 SECTION

8X RED LEDS RECTANGULAR
2 X GREEN LEDS RECTANGULAR
1 X JUMPER SWITCH (AS USED ON HARD DRIVES ETC)
1 X SIL CONNECTOR 2-WAY (HEADER TYPE WITH PINS)
1 X SIL CONNECTOR 2-WAY
1 X 18 PIN DIL IC SOCKET
1 X LM3914 VOLTAGE REGULATOR IC
1 X 2.2 UF ELECTROLYTIC CAPACITOR 6V (OR ABOVE)
1 X 3K9 RESISTOR
1 X 1.2K RESISTOR
1 X 470K RESISTOR

LM393 SECTION

1 X LM393 DUAL COMPARATOR IC
1 X 8 PIN DIL IC SOCKET
1 X 10K POTENTIOMETER
1 X 3MM RED LED
1 X 3MM GREEN LED
3 X 1K RESISTORS
1 X 100K RESISTOR
2 X SIL CONNECTOR 1-WAY
1 X SIL CONNECTOR 2-WAY
1 X SIL CONNECTOR 3-WAY

LDR AND THERMISTOR SECTION

2 X LDRS GENERAL PURPOSE  GL5528
2 X 10K  NTC THERMISTORS BEAD TYPE
4 X 10K POTENTIOMETERS
4 X 1K RESISTORS
4 X SIL CONNECTORS 2-WAY

RESISTOR BANK SECTION

1 X 47R RESISTOR
1 X 100R RESISTOR
1 X 470R RESISTOR
1 X 1K RESISTOR
1 X 2.2K RESISTOR
1 X 4.7K RESISTOR
1 X 6.8K RESISTOR
1 X 10K RESISTOR
1 X 22K RESISTOR
1 X 47K RESISTOR
1 X 100K RESISTOR
1 X 270K RESISTOR
1 X 470K RESISTOR
1 X 560K RESISTOR
1 X 680K RESISTOR
1 X 1M RESISTOR
4 X SIL CONNECTORS 8-WAY

PULL-UP PULL-DOWN SECTION

2 X 2.2K RESISTORS
3 X 4.7K RESISTORS
2 X 10K RESISTORS
1 X 1K RESISTOR
2 X SIL CONNECTORS 3-WAY

1x3MM RED LED

1X3MM GREEN LED

SHIFT REGISTER SECTION

3 X DIL RESISTOR CHIP 330R OR 1K, (OR SINGLE RESISTORS)
3 X CD4094 SHIFT REGISTERS
3 X 16 PIN DIL IC SOCKETS (dil resistors don’t need any)
1 SIL CONNECTOR 3-WAY
1 X 10NF CERAMIC CAPACITOR
24 X 3MM RED LEDS (OR OTHER COLOUR MIX)

ATMEGA 328P SECTION

1 X 28 PIN DIL IC SOCKET
1 X ATMEGA 328P MICRO-CONTROLLER IC
2 X 22PF CERAMIC CAPACITORS
1 X 16 MHZ QUARTZ CRYSTAL
1 X TACTILE SWITCH
1 X 10K RESISTOR
1 X SIL CONNECTOR 4-WAY
1 X SIL CONNECTOR 5-WAY
1 X SIL CONNECTOR 6-WAY

DOT MATRIX DISPLAY SECTION

2 X 8X8 RED DOT MATRIX DISPLAYS COMMON CATHODE
2 X 24 PIN DIL IC SOCKETS
2 X MAX 7219 IC
2 X 10UF OR 1UF ELECTROLYTIC CAPACITORS 6V (OR ABOVE)
2 X 27K RESISTORS  (10K CAN ALSO BE USED HERE)
7 X SIL SOCKETS 2-WAY
4 X SIL SOCKETS 8-WAY

 

VOLTAGE CONTROL OSCILLATOR SECTION (NEW REVISION BOARD ONLY)

1 X4046 VCO                                                                                                                            2 X 3MM LEDS USE RED HERE BECAUSE OF LOW OUTPUT SIGNALS                                                                                                                                      1 X 100K POTENTIOMETER WITH SLIM SPINDLE                                      1 X 1M      POTENTIOMETER WITH SLIM SPINDLE                                        2 X 10 RESISTORS                                                                                                                  2 X 4.7K RESISTORS                                                                                                            1 X LM386 AUDIO AMP                                                                                                    1 X 100NF CERAMIC CAPACITOR                                                                            2 X 10NF CAPACITOR                                                                                                        1 X 10K POTENTIOMETER                                                                                              1 X 16 PIN DIL IC SOCKET                                                                                              1 X 8 PIN DIL  IC SOCKET                                                                                                3 X SIL CONNECTOR 2-WAY                                                                                        1 X SIL CONNECTOR 3-WAY                                                                                        1 X 8 OHM SPEAKER PCB MOUNT 300MM CASE DIAMETER

 

OTHER PARTS

1 X 400 POINT BREAD BOARD
13 X TACTILE SWITCHES
4 X 10K RESISTORS 2 X 100R RESISTORS
1 X 4 MHZ QUARTZ CRYSTAL
1 X 16 MHZ QUARTZ CRYSTAL

2 X GENERAL PURPOSE DIODE 1N4148
1 X USB PORT
1 X BUZZER 5V
1 X PANEL MOUNT VOLT METER 3 WIRE, RED, GREEN  0V-30V RANGE

1X 8 OHM PCB MOUNT SPEAKER CASE DIAMETER SIZE 300MM   1X 220UF ELECTROLYTIC CAPACITOR

1 X 3MM RED LED
1 X 4K7 RESISTOR
4 X 22PF CERAMIC CAPACITORS
5 X 10 NF CERAMIC CAPACITORS
1 X 47UF ELECTROLYTIC CAPACITOR (6V OR ABOVE )
1 X 2.2UF ELECTROLYTIC CAPACITOR (6V OR ABOVE)
7 X PCB STAND OFFS (OR OTHER METHODS CAN BE USED)
1 X WIRE JUMPER SET, TO MAKE CONNECTIONS
3 X SIL CONNECTORS 40- WAY (TO CUT FOR THE REST OF PCB)

1 X 28 PIN ZIF SOCKET(UNIVERSAL TYPE) WIDE SOCKET AS PHOTO IN GALLERY, ALSO TO FIT STANDARD LOGIC CHIPS ETC.
1 X PTC FUSE AROUND 500mA HOLD CURRENT AND 1 AMP TRIP CURRENT,  SLIGHTLY HIGHER  CAN BE USED TO SUIT APPLICATION  2AMP TRIP

Input capacitor 47uf, electrolytic, try different value if noisy environment, ie depending on length of usb cable and the source power. usb 3 cable is a good quality cable to use.

Note:- if sourcing own components, and clear leds are chosen rather than the standard diffused types as (Led labs supplies) the resistor values may need to be increased as these are usually very bright,  bread boarding  these first to get the brightness required may be good to do first, 10k is usually a good value so they are not to bright.

Further note: due to the very noisy max 7219 display drivers ic’s, which are renowned for generating noise on the power supply rail.

certain frequencies and switching of these chips can show noise radiated on the large led voltmeter, if certain  types are used. this only may happen on certain programs at given refresh rates. and gives an oscillating effect on the voltage meter.

Replacing the volt meter for a 0v – to 30v range is a better suited type, than the 0v-99v range.  A red display can be the best type as supply voltage is lower, than other colours, this may also never arise depending on code sent to max7219 ic’s.