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Linear bargraph LED scale module KIT
Linear bargraph LED scale module KIT

Linear LED scale module with 12 LEDs.
Can be used as a voltmeter in a scale with independently adjustable limits in the range 0 to 5V (like 1V to 2V scale, 0V to 0.5V scale, etc).

Power supply: 8V to 12V
Graph: 12 red LEDs **, in dot or bar configuration
Graph orientation: top or side of the module
Input scale low limit: 0 to 5V (manually adjustable)
Input scale high limit: 0 to 5V (manually adjustable)
Dimensions after assembly: approx. 78.5x38.5x19 mm (LxDxH) (LEDs excluded)

** Want other colors? Tell us how many of what colors you want up to 12, in the comments at checkout. The available LED colors are: red, green and yellow.

Check our article series on linear bargraphs for applications, here, under Technical Articles.

Linear bargraph LED scale module KITMore Details

What's included in the KIT:

1 x Resistor, 3.9K 1/4W 5%
12 x Resistor, 270 1/4W 5%
1 x Capacitor, electrolytic, 22uF
2 x Capacitor, ceramic, 100nF
12 x LED, red
1 x Diode, 1N4007
2 x Variable resistor, 10K
1 x Integrated Circuit, Voltage Regulator, LM7805
1 x Integrated Circuit, ED1001
1 x 20 pins IC socket for ED1001
1 x Connector, DC Power, 2.1mm or 2.5mm
1 x Connector, Male header of 3 pins
1 x Connector, Male header of 2 pins
1 x Jumper
1 x High quality PCB (Printed Circuit Board) with silkscreen and soldermask

Download: KIT Instructions and data (PDF, 4 pages)

Based on our EDChip ED1001; can be used as ED1001 eval board.

Constructing an electronics KIT is very fun but involves working with a soldering iron and therefore presents some risk. We assume you have a reasonable common sense and some basic experience! Feel free to contact us for further information, here.

Price: 16.95 €

This product has sold out.
ED1001 - Linear Bargraph Driver
ED1001 - Linear Bargraph Driver

ED1001 is a general-purpose output driver, linearly controlling a set of outputs displaying the voltage level on a positive input.

ED1001 - Linear Bargraph DriverMore Details
Highlights
  • Up to 12 outputs.
  • Analog voltage input, from GND to VCC.
  • Adjustable bottom and top of scale.
  • Bar or dot output.
  • Dot mode dead time between output switches.
  • Voltage supply (VCC): 4.5V to 5.5V.
  • 40mA maximum current drive per output in non-inverted dot mode, 15mA in bar mode.
Description
The display can be used as a bar or a dot and the 2 scale limits are user-defined.
All the selections are made through chip pins and can be set dynamically at run-time, with immediate change.
There is a nominal 10ms dead time when switching from one output to the next, in DOT mode.

Resources
Datasheet: Download

Price: 2.25 €

ED1021 - I/O Expander with UART interface
ED1021 - I/O Expander with UART interface

ED1021 is an I/O expander fully controlled and configured through an UART interface. I/O expanders expand the number of pins available to a host system (typically, a microprocessor). This product includes a low profile 4.000 MHz crystal and pair of 22pF capacitors to easily put you up running.

ED1021 - I/O Expander with UART interfaceMore Details
Highlights
  • 4.5V to 5.5V power supply.
  • 12 GPIOs.
  • Up to 40mA maximum current in each output except GPIO8 (up to a total device current of 175mA).
  • Most GPIOs can be an input to a 10bit ADC.
  • Simple interface to most PC serial ports.
  • Uses a common 4.000 MHz crystal.
  • Easy to use UART interface at 38400 bps.
  • One of a set of 4 GPIO pins can be used as an interrupt request (IRQ) pin.
  • High stability internal ADC voltage reference for precise readings.
Description
Each pin can be configured either as an input, input with pull-up, input to an internal 8 or 10-bit ADC (10 of the 12 GPIOs), push-pull output or disconnected. When a change happens in a GPIO configured as digital input, ED1021 can automatically send a notification to the host system through the UART interface or an IRQ line. The IRQ line can be configured to be any of the GPIO8-11 pins.

Example Application
Below is an example application in which a PC controls 2 LEDs, reads 4 pushbuttons and 3 slow changing analog signals and monitors a V+ voltage (to display a battery charge state).
ED1021 - Example Application

Connection to the PC uses the COMx port. Most PC serial ports and USB-to-Serial converters will tolerate the lower voltage levels provided by ED1021. Some USB-to-Serial converters even use 5V TTL signals, which make them just perfect for interfacing with this I/O expander. The circuit must be powered up before connecting the serial port cable to the PC. (click the schematics for a bigger view)

Resources
Datasheet: Download
Windows PC graphical demo application: Download
You can use this application to control an ED1021 connected to a PC through a serial COM port. No installation nor administration rights needed.

Price: 4.00 €

This product has sold out.
RESISTOR, 0.25W 5% 220R
RESISTOR, 0.25W 5% 220R

RESISTOR, 0.25W 5% 220R

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 270R
RESISTOR, 0.25W 5% 270R

RESISTOR, 0.25W 5% 270R

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 330R
RESISTOR, 0.25W 5% 330R

RESISTOR, 0.25W 5% 330R

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 470R
RESISTOR, 0.25W 5% 470R

RESISTOR, 0.25W 5% 470R

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 1K
RESISTOR, 0.25W 5% 1K

RESISTOR, 0.25W 5% 1K

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 2K2
RESISTOR, 0.25W 5% 2K2

RESISTOR, 0.25W 5% 2K2

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 3K3
RESISTOR, 0.25W 5% 3K3

RESISTOR, 0.25W 5% 3K3

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 3K9
RESISTOR, 0.25W 5% 3K9

RESISTOR, 0.25W 5% 3K9

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 4K7
RESISTOR, 0.25W 5% 4K7

RESISTOR, 0.25W 5% 4K7

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 10K
RESISTOR, 0.25W 5% 10K

RESISTOR, 0.25W 5% 10K

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 22K
RESISTOR, 0.25W 5% 22K

RESISTOR, 0.25W 5% 22K

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 47K
RESISTOR, 0.25W 5% 47K

RESISTOR, 0.25W 5% 47K

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 100K
RESISTOR, 0.25W 5% 100K

RESISTOR, 0.25W 5% 100K

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 470K
RESISTOR, 0.25W 5% 470K

RESISTOR, 0.25W 5% 470K

RoHS compliant: YES

Price: 0.02 €

RESISTOR, 0.25W 5% 330K
RESISTOR, 0.25W 5% 330K

RESISTOR, 0.25W 5% 330K

RoHS compliant: YES

Price: 0.02 €

CAPACITOR, 22UF, 35V
CAPACITOR, 22UF, 35V

CAPACITOR, 22UF, 35V

RoHS compliant: YES

CAPACITOR, 22UF, 35VMore Details
Application: High Temperature
Tolerance, capacitance: ±20%
Capacitor dielectric type: Aluminium Electrolytic
Pitch, lead: 2mm
Temperature, operating range: -40°C to +105°C
Current, leakage: 23.1µA
Current, ripple AC: 60mA
Diameter, body: 5mm
Diameter, lead: 0.5mm
Frequency, ripple current: 120Hz
Length / Height, external: 11mm

Price: 0.05 €

CAPACITOR, 100NF, 50V
CAPACITOR, 100NF, 50V

CAPACITOR, 100NF, 50V

RoHS compliant: YES

CAPACITOR, 100NF, 50VMore Details
Tolerance, capacitance: ±20%
Capacitor dielectric type: Ceramic Multi-Layer
Dielectric characteristic: Z5U
Depth, external: 3.18mm
Diameter, lead: 0.508mm
Length / Height, external: 5.08mm
Length, lead: 25.4mm
Pitch, lead: 2.54mm
Temp, op. max: 125°C
Temp, op. min: -55°C

Price: 0.14 €

Red LED
Red LED

LED, LOW CURRENT, 5MM, RED

RoHS compliant: YES

Red LEDMore Details
Colour, LED: HE Red
Angle, viewing: 60°
Voltage, Vf max: 2.5V
Temperature, operating range: -40°C to +85°C
Current, If luminous intensity: 2mA
Current, If max: 7mA

Price: 0.16 €

1N4148
1N4148

DIODE, HIGH SPEED, DO-35

RoHS compliant: YES

Price is for 1 diode.

Price: 0.04 €

1N4007
1N4007

DIODE, STANDARD, 1A, 1000V, DO-41

RoHS compliant: YES

Price is for 1 diode.

Price: 0.06 €

1N5817
1N5817

DIODE, SCHOTTKY, 1A, 95-10

RoHS compliant: YES

Price: 0.19 €

Zener 5.6V 0.5W
Zener 5.6V 0.5W

DIODE, ZENER, 5.6V, 500MW

RoHS compliant: YES

Price: 0.10 €

This product has sold out.
2N3904
2N3904

TRANSISTOR, NPN, TO-92

RoHS compliant: YES

Price: 0.11 €

2N3906
2N3906

TRANSISTOR, PNP, TO-92

RoHS compliant: YES

Price: 0.11 €

INDUCTOR, 0.22MH
INDUCTOR, 0.22MH

INDUCTOR, 0.22MH

RoHS compliant: YES

INDUCTOR, 0.22MHMore Details
Inductor type: Power Inductor
Inductance: 220µH
Tolerance, inductance: +/-10%
Resistance: 0.83R
Current, DC max: 430mA
Frequency, resonant: 5.4MHz
Q factor: 90
Material, core: Ferrite
Diameter, body: 7.2mm
Diameter, lead: 0.6mm
Length / Height, external: 11mm
Length, lead: 35mm

Price: 1.15 €

TRIMMER, TOP ADJUST, 10K
TRIMMER, TOP ADJUST, 10K

TRIMMER, TOP ADJUST, 10K
Of the "mini" type (10mm side)

RoHS compliant: YES

TRIMMER, TOP ADJUST, 10KMore Details
Tolerance, resistance: ±20%
Temperature, operating range: -25°C to +70°C
Resistor element type: Carbon
Voltage, rating: 200V dc
Temperature coefficient: ±500ppm/°C

Price: 0.42 €

This product has sold out.
ATTiny26-16PU
ATTiny26-16PU

8BIT 2K FLASH MCU, DIP20

RoHS compliant: YES

Do you want to startup programming microcontrollers?
Check out our free article here.

Price: 1.88 €

7805
7805

REG, LDO, 5V, 1A, TO220-3

RoHS compliant: YES

Price: 0.35 €

DC POWER 2.1mm
DC POWER 2.1mm

SOCKET, LOW VOLTAGE, 2.1MM

RoHS compliant: YES

Price: 0.60 €

This product has sold out.
SOCKET ID DIP20
SOCKET ID DIP20

SOCKET IC, DIL

RoHS compliant: YES

Price: 0.32 €

This product has sold out.
BuzziT! KIT
BuzziT! KIT

This circuit is very similar to the simple, fun and easy to build tone generator circuit featured in our article Fun and easy to build buzzer circuit!.

Pitch: adjustable
Power Supply: 2.5V to 6V (2 to 4 AA or AAA batteries)
Dimensions after assembly: approx. 31x17x11 mm (LxDxH)

The KIT does not include the wires, batteries, battery holder nor speaker. This is a KIT, which means you get the parts and then need to assemble it yourself using a soldering iron.

BuzziT! KITMore Details

What's included in the KIT:

1 x NPN transistor 2N3904
1 x PNP transistor 2N3906
1 x 100nF capacitor
1 x 1K 1/4W resistor
1 x 33K 1/4W resistor
1 x 1M horizontal adjustment variable resistor
1 x PCB (Printed circuit board)

Download: KIT Instructions and data (PDF, 2 pages)

Constructing an electronics KIT is very fun but involves working with a soldering iron and therefore presents some risk. We assume you have a reasonable common sense and some basic experience! Feel free to contact us for further information, here.

Price: 5.90 €

This product has sold out.
PWM Board with UART interface KIT
PWM Board with UART interface KIT

PWM controller board with UART interface, allowing to speed/direction control DC motors upto 1A, and 4 extra lower power devices such as LEDs (for dimming) and servos.
An excellent companion to a microcontroller based processing board such as the Arduino.

Power supply: 6V - 12V
Power channels:
-> 4, sharing 2 PWM generators
-> 1A max
-> 8 bit frequency and duty cycle resolution up to 200KHz
PWM channels:
-> 4, with 4 independent PWM generators
-> 40mA max each, 60mA max total
-> 7 bit frequency and duty cycle resolution up to 10KHz
Dimensions (mm): approx. 41x51x15 (WxDxH)

PWM Board with UART interface KITMore Details

Power channels can be used to control small DC motors with speed control: 2 bidirectional, 4 unidirectional or 1 bidirectional and 2 unidirectional.

The PWM channels can be used for example to dim LEDs or control servo motors.

Additionally, each unused power driver allows to use one GPIO/ADC pin.


Available soon!
Luny Sound Delirium KIT
Luny Sound Delirium KIT

Welcome to the wonderful world of sound FX!
This KIT consists of a digital software synthesizer with 2 oscillators (LFO and HFO) which can be connected in Amplitude or Frequency modulation configurations. The oscillators feature several wave types, amplitude & frequency modulation, and others, through knobs.

Luny Sound Delirium KITMore Details
Preliminary Highlights
  • 6V to 9V power supply range.
  • 1V max. output amplitude
  • LFO: 0.01..25Hz; 6 wave types, square duty cycle, frequency
  • HFO: 50..10000Hz; 6 wave types, frequency
  • Modulation: LFO optionally modulates HFO in Amplitude (AM) of Frequency (FM)
  • External input for optional AM
External signals also have a word to say. You can choose to amplitude modulate the output sound using an external signal. But that's not all; any knob can be replaced with any 0 to 5V signal source! Using this expansion facility you can turn this baby into several different instruments.

Below you can see the conceptual LSD's diagram (click it for a bigger view).

LSD Concept


Available soon!
EDuino-B KIT
EDuino-B KIT

EDuino is a serial Arduino-compatible board, smaller, cheaper and easy to build at home.The main design goal that led us to EDuino was that it's expensive to buy a full-feature Arduino for every project.

EDuino-B KITMore Details
EDuino is actually licensed under CC, and you can get all the information (including how to build your one at home) in our article EDuino - our vision of serial Arduino.

Download: KIT Instructions and data (PDF, 3 pages)

This KIT contains a single side tinned PCB and all components, including an ATmega328 with the Arduino bootloader, and requires assembly. The male pin headers are not included, get your own favorite connector (or solder wires directly to the PCB pads).

Constructing an electronics KIT is very fun but involves working with a soldering iron and therefore presents some risk. We assume you have a reasonable common sense and some basic experience! Feel free to contact us for further information, here.

Price: 9.95 € (estimate)

Available soon!
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