Monthly Archives: September 2008

8×8 RGB Matrix — first prototype on perfboard

Posted on September 21, 2008 by robert

I’ve finally managed building a prototype on perfboard. So far I’ve just put on the sockets and a minimal arduino. That’s just the ATmega168, quartz + caps, reset switch, green led, input switch, decoupling caps. Tomorrow (after I wake up … Continue reading →

Posted in Arduino., Electronics. | Tagged , , , , | 64 Comments

RoHS compliant soldering

Posted on September 13, 2008 by robert

When I decided to revamp my old hobby called electronics, I decided to be RoHS compliant and bought lead-free solder. make: Edsyn type: SAC8250 alloy: Sn95.5Ag3.8Cu0.7 flux: F-SW34 (no-clean) melting point: 217°C As my good old soldering iron works at … Continue reading →

Posted in Electronics., Soldering & PCBs. | Tagged , , | 3 Comments

Modding a GBC-H212 Laminator

Posted on September 9, 2008 by robert

Objective: proper toner transfer for 2 sided 1.5mm PCBs Steps: check if 1.5mm PCBs pass through the unmodded laminator: (NO) remove paper guides to prevent PCB from getting stuck (OK) check if proper refusing takes place after about 2-4 passes: … Continue reading →

Posted in Electronics., Soldering & PCBs. | Tagged , | 2 Comments

8×8 RGB Matrix — 2nd arduino project

Posted on September 8, 2008 by robert

OK, now for something completely different… Some RGB LED matrix effects – Code: matrix_code.pde (This code will not run flawlessly on up-to-date matrix boards without modification. Please only use this code, unless you exactly know what you’re doing.) So far … Continue reading →

Posted in Arduino., Electronics. | Tagged , , , , | 39 Comments

Making PCBs with the toner transfer method

Posted on September 8, 2008 by robert

Well… I thought this would be fun. I even got the pulsarprofx toner transfer paper and a laminator (GBC H212) because I couldn’t get proper results with my tiny clothes iron, but It did not work. The transfer paper itself … Continue reading →

Posted in DIY., Electronics., Soldering & PCBs. | Tagged , | 3 Comments