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 The Latest Epson 5th generation Micro Piezo Printhead can reach resolution of 1440 dpi. It's extremely fine ink droplets are able to fully reflect the rich detail of the picture, and to fulfill the requirement of one meter viewing range. Suitable for both water based dye and eco-solvent pigment inks, And it can offer one to two years service life.

 

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Heart Project

The badge consists of eight LEDs arranged in the shape of a heart. One LED is lit at a time and this 'chases' round the shape. It would be easy to adapt this project to create other shapes with the eight LEDs. This project uses a 555 astable circuit to provide the clock pulses for the 4017 counter.

Parts Required

resistors: 2.2k, 47k, 270 ×8

capacitors: 0.1µF, 1µF 16V radial

red LEDs ×8

555 timer IC

4017 counter IC

DIL sockets for ICs: 8-pin, 16-pin

on/off switch

battery clip for 9V PP3

safety pin to attach badge

ribbon cable 9-way about 1 meter (to connect badge to main circuit)

strip board: 16 rows × 19 holes for circuit, 10 rows × 9 holes for badge

Strip board Layout

Circuit diagram

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